Product Owners Manual
LIMITED AMPLIFIER WARRANTY STATEMENT
HOW TO OBTAIN WARRANTY SERVICE
©2005 Diamond Audio Technology. All Rights Reserved
TDX AMPLIFIERS
CORPORATE OFFICE:
Diamond Audio Technology, Inc.
410 S. Benson Ln.
Chandler, Arizona 85224 USA
PHONE: (480) 813-6200
FAX: (480) 813-6210
WEB: www.DiamondAudio.com
SERVICE/TECH SUPPORT:
TOLL FREE 1-866-328-2834
TECH SUPPORT EMAIL:
SERIAL NUMBER
DATE OF PURCHASE
Diamond Audio Technology, Inc. (DAT) warrants this amplifier to be free from defects in material and workmanship for the lifetime of the
amplifier in its original installation provided the amplifier was purchased from and installed by an authorized DAT retailer. Amplifiers
purchased from but not installed by an authorized DAT retailer carry a one (1) year parts and labor guarantee.
This warranty is not transferable and applies only to the original purchaser of this amplifier in its original installation. Original
purchaser must reside in the United States and register the amplifier with DAT within 30 days of installation. Warranty registration
information can be found at www.diamondaudio.com or by calling 866-328-2834. Original purchaser must be able to provide proof of
purchase and installation with the sales receipt from the authorized DAT retailer that sold and installed the amp.
Should a manufacturing defect occur in the first three (3) years of the above said warranty period, DAT will replace the defective product
with new product of the same or equivalent value and performance. Should the defect occur after the first three (3), DAT will (at its
discretion), repair or replace the defective product or parts with new or remanufactured product for as long as the amplifier is in its original
installation. Damage or failure caused by any of the following is not covered under this warranty policy: negligence, improper use, abuse,
product modification, unauthorized repair attempts, accident, acts of God, misrepresentations by DAT retailers, and improper/inadequate
packaging during return shipping.
Warranty is void if serial numbers have been removed, altered or defaced or if protective seal is broken.
In the event a DAT product should require service, you should visit the authorized DAT retailer you purchased the product from and they
can expedite your claim. All claims must fall into the guidelines listed above and be accompanied by a copy of the original sales and
installation receipt from that authorized DAT retailer.
Product returned for warranty service must be freight-prepaid, properly packaged and clearly marked with the Return Authorization (RA)
number issued by DAT. Any product returned to DAT that is improperly packaged, does not have a RA number clearly marked on the package,
or never received a RA number; may be refused upon delivery. DAT does not assume responsibility for lost or misdirected product.
Repair or replacement under this warranty is the exclusive remedy of the consumer. DAT shall not be liable for any incidental or
consequential damages for breach of any expressed or implied warranty on this product. Some states do not allow the exclusion or
limitation or incidental or consequential damages, or allow limitations on how long an implied warranty lasts, so the above limitations or
exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights that may vary from state to
state.
Customers outside the United States should contact their local sales office to obtain information on pricing, exchange unit availability,
instructions, service and warranty/non-warranty replacement or repair.
CAUTION
Prolonged exposure to sound pressure levels in excess of 100 dB can cause permanent
hearing loss. Diamond Audio D9 amplifiers produce enough power to make most speaker
systems exceed that level. Please exercise restraint and protection during their operation
in order to preserve your ability to enjoy their fidelity for years to come.
1 2
A FOREWORD ABOUT D9 & TDX TECHNOLOGY™
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
The team at Diamond Audio never ceases to amaze me with their constant desire to
develop and engineer cutting edge audio. With more than three years in research and
development, I can truthfully say we have created products that I believe have no equal.
I am extremely proud to head a company of audio fanatics that insist you listen as the
artist intended.
Thanks for your support,
RF
CEO etc
DAT
TDX TECHNOLOGY™
Thermal-Dyne eXtreme™, a fundamentally different solution. The design concept of
TDX Technology™ is to eliminate the most damaging factor to audio equipment and signal, Heat.
Diamond Audio engineers decided to start with a fresh sheet of paper and build all new products
that addressed all of the thermal problems and shortcomings of conventional designs while
significantly raising the existing level of performance.
The TDX™ amplifier technology starts with the massive extruded aluminum heat sink
that is designed to draw heat away from the power supply and output devices and dissipate it
quickly. This heat sink meets all the thermal requirements demanded in an elegant fashion,
combining technology and good looks.
Extruded into this heat sink are massive twin cooling fin banks with six cooing ducts
that act as intake and exhaust for the fan driven Stealth Dynamic Cooling System. All six ducts
are located on the end panels of the amplifier. Air is drawn into the system through the center
intake ducts, through the fan, across the heat sink fin banks, and out through the exhaust vents.
The fan is stealth mounted internally to eliminate any fan related noise or disruption.
At the center of this thermal protection system is the patent pending TDX™ circuitry
that controls all aspects of operation. This circuitry completely eliminates amplifier overheating
and shut down problems. This is achieved through a secondary, optically isolated power supply
controller. Under demanding conditions (i.e. high ambient temperatures, high power, and low load
impedance), the TDX™ circuitry:
Senses the rising temperature.
Enables the cooling fan.
Adjusts the power supply current to a sustainable level.
And adjusts the cooling fan speed.
Once the temperature has been reduced, the power supply current is increased and the
fan is shut down. This operation is completely transparent to the user and the amplifier output is
not wavered while TDX™ is engaged. This circuitry also incorporates redundant thermal sensing
for fail-safe operation at all times.
The D9 amplifier with TDX Technology™ truly sets a new benchmark in mobile audio
performance. With its extremely low distortion and noise performance, complete protection
circuitry, and high power, this amplifier truly has no equal.
CAUTION
Prolonged exposure to sound pressure levels in excess of 100 dB can cause permanent
hearing loss. Diamond Audio D9 amplifiers produce enough power to make most speaker
systems exceed that level. Please exercise restraint and protection during their operation
in order to preserve your ability to enjoy their fidelity for years to come.
1 2
A FOREWORD ABOUT D9 & TDX TECHNOLOGY™
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
The team at Diamond Audio never ceases to amaze me with their constant desire to
develop and engineer cutting edge audio. With more than three years in research and
development, I can truthfully say we have created products that I believe have no equal.
I am extremely proud to head a company of audio fanatics that insist you listen as the
artist intended.
Thanks for your support,
RF
CEO etc
DAT
TDX TECHNOLOGY™
Thermal-Dyne eXtreme™, a fundamentally different solution. The design concept of
TDX Technology™ is to eliminate the most damaging factor to audio equipment and signal, Heat.
Diamond Audio engineers decided to start with a fresh sheet of paper and build all new products
that addressed all of the thermal problems and shortcomings of conventional designs while
significantly raising the existing level of performance.
The TDX™ amplifier technology starts with the massive extruded aluminum heat sink
that is designed to draw heat away from the power supply and output devices and dissipate it
quickly. This heat sink meets all the thermal requirements demanded in an elegant fashion,
combining technology and good looks.
Extruded into this heat sink are massive twin cooling fin banks with six cooing ducts
that act as intake and exhaust for the fan driven Stealth Dynamic Cooling System. All six ducts
are located on the end panels of the amplifier. Air is drawn into the system through the center
intake ducts, through the fan, across the heat sink fin banks, and out through the exhaust vents.
The fan is stealth mounted internally to eliminate any fan related noise or disruption.
At the center of this thermal protection system is the patent pending TDX™ circuitry
that controls all aspects of operation. This circuitry completely eliminates amplifier overheating
and shut down problems. This is achieved through a secondary, optically isolated power supply
controller. Under demanding conditions (i.e. high ambient temperatures, high power, and low load
impedance), the TDX™ circuitry:
Senses the rising temperature.
Enables the cooling fan.
Adjusts the power supply current to a sustainable level.
And adjusts the cooling fan speed.
Once the temperature has been reduced, the power supply current is increased and the
fan is shut down. This operation is completely transparent to the user and the amplifier output is
not wavered while TDX™ is engaged. This circuitry also incorporates redundant thermal sensing
for fail-safe operation at all times.
The D9 amplifier with TDX Technology™ truly sets a new benchmark in mobile audio
performance. With its extremely low distortion and noise performance, complete protection
circuitry, and high power, this amplifier truly has no equal.
3 4
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
SPECIFICATIONS
RMS POWER
2 Ohm
Stereo
400 x 2
200 x 4
Model
D9 800.2
D9 800.4
2 Ohm
Mono
n/a
n/a
4 Ohm
Stereo
200 x 2
100 x 4
4 Ohm
Mono
800 x 1
400 x 2
PHYSICAL DIMENSIONS
Model
D9 800.2
D9 800.4
(A)
Length
21.5"
21.5"
(B)
Width
11.125"
11.125"
(C)
Height
3.125"
3.125"
Weight
20 lbs
20 lbs
(C)
(B)
(A)
CONTENTS
Page 3 - Specifications
Page 4 - RMS Power & Physical Dimensions
Page 5 - Appearance/Features, Professional Installation & Mounting
Page 6 - Stealth Cooling System & DC Connections
Page 7 - DC Connections
Page 8 - DC Connections
Power & Ground, Turn-on (Remote)
Page 9 - DC Connections
Current Draw
Page 10 - Speaker Connections & D9 Pre-amp
Page 11 - D9 800.2
Bridging, RCA, Gain
Page 12 - D9 800.2
+14 dB Input Select, Highpass, Subsonic, Lowpass, Mono
Page 13 - D9 800.4
Bridging, RCA, Gain
Page 14 - D9 800.4
Gain, +14 dB Input Select, Highpass, Subsonic, Lowpass
Page 15 - D9 800.4
Mono
Page 16, 17 & 18 -
Gain Setting Brief
Fuse
Rating
125 A
125 A
DC
Range
10 - 16 V
10 - 16 V
Input
Range
0.3 - 30 V
@ 20k ohms
0.2 - 20 V
@ 20k ohms
Channel
Separation
100 dB
(min.)
100 dB
(min.)
THD
0.003%
0.004%
Signal-to-
Noise Ratio
92 dB
90 dB
Model
D9 800.2
D9 800.4
Frequency
Response
2 - 160k Hz
2 - 160k Hz
3 4
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
SPECIFICATIONS
RMS POWER
2 Ohm
Stereo
400 x 2
200 x 4
Model
D9 800.2
D9 800.4
2 Ohm
Mono
n/a
n/a
4 Ohm
Stereo
200 x 2
100 x 4
4 Ohm
Mono
800 x 1
400 x 2
PHYSICAL DIMENSIONS
Model
D9 800.2
D9 800.4
(A)
Length
21.5"
21.5"
(B)
Width
11.125"
11.125"
(C)
Height
3.125"
3.125"
Weight
20 lbs
20 lbs
(C)
(B)
(A)
CONTENTS
Page 3 - Specifications
Page 4 - RMS Power & Physical Dimensions
Page 5 - Appearance/Features, Professional Installation & Mounting
Page 6 - Stealth Cooling System & DC Connections
Page 7 - DC Connections
Page 8 - DC Connections
Power & Ground, Turn-on (Remote)
Page 9 - DC Connections
Current Draw
Page 10 - Speaker Connections & D9 Pre-amp
Page 11 - D9 800.2
Bridging, RCA, Gain
Page 12 - D9 800.2
+14 dB Input Select, Highpass, Subsonic, Lowpass, Mono
Page 13 - D9 800.4
Bridging, RCA, Gain
Page 14 - D9 800.4
Gain, +14 dB Input Select, Highpass, Subsonic, Lowpass
Page 15 - D9 800.4
Mono
Page 16, 17 & 18 -
Gain Setting Brief
Fuse
Rating
125 A
125 A
DC
Range
10 - 16 V
10 - 16 V
Input
Range
0.3 - 30 V
@ 20k ohms
0.2 - 20 V
@ 20k ohms
Channel
Separation
100 dB
(min.)
100 dB
(min.)
THD
0.003%
0.004%
Signal-to-
Noise Ratio
92 dB
90 dB
Model
D9 800.2
D9 800.4
Frequency
Response
2 - 160k Hz
2 - 160k Hz
5 6
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
APPEARANCE/FEATURES
TDX Technology™ (Thermal Dyne eXtreme)™
Stealth Dynamic Cooling System
Thermally Optimized Aluminum Heat Sinks
0 Gauge Direct Power/Ground Terminals
10 Gauge Direct Speaker Terminals - Excepts Banana Plugs
Lowest Distortion and Noise Available in Mobile Audio
Complete Protection Circuitry
(short circuit, over current, thermal, under voltage, reverse polarity, & DC output)
PROFESSIONAL INSTALLATION
To achieve maximum performance and life time warranty coverage (see warranty
statement), Diamond Audio strongly recommends that a factory authorized Diamond
retailer professionally installs your new amplifier. The D9 amplifier is an awesome
component with category leading technology, proper attention must be taken during
installation to ensure optimum performance. The authorized Diamond retailer you
purchased your amplifier from has the training, expertise, and tools for proper
installation. If you decide to install your amplifier yourself, please read this manual
through to become familiar with the amplifiers install and set up procedures.
MOUNTING
D9 Amplifiers can be mounted in any position, even upside down, just as long as airflow
is maintained. Do not install any amplifier under carpet or behind airtight panels.
Maintain 2" of space around the amplifier so that it can breath. If mounting location has
a lack of airflow, ventilations fans must be used to circulate fresh air.
Never mount an amplifier where it can get wet, water damage is not covered by warranty.
D9 Amplifiers utilize their own stealth fan driven cooling system. A sufficient flow of air
around the amplifier will allow the TDX™ thermal management system to operate at
peak efficiency. Air is drawn into the system through center intake ducts in the heat
sink, through the fan, across the circuit board, and out through the exhaust vents on the
end panels. The TDX™ circuitry regulates when the fan is on and how fast it turns
depending on the temperature of the amplifier.
STEALTH DYNAMIC COOLING SYSTEM
DC CONNECTIONS
D9 amplifiers need proper power and ground connections to deliver maximum
performance and efficiency. This is typically the least understood part of the installation
process. The D9 power supply is completely defendant on current, not voltage, so it is
truly regulated by nature. Voltage drops due to poor connections or grounding practices
will only cause the amp to pull more and more current to sustain output. This increased
current draw causes unwanted noise, thermal issues, and will eventually make the amp
shut down or cause the vehicles electrical system to fail.
The gauge of the power and ground cables must be capable of handling the current
needed by the entire system. Power and ground cables must be of the same gauge. If the
alternator is not capable of supplying enough power for both the vehicle AND the audio
system, a high output alternator should be installed for best performance.
5 6
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
APPEARANCE/FEATURES
TDX Technology™ (Thermal Dyne eXtreme)™
Stealth Dynamic Cooling System
Thermally Optimized Aluminum Heat Sinks
0 Gauge Direct Power/Ground Terminals
10 Gauge Direct Speaker Terminals - Excepts Banana Plugs
Lowest Distortion and Noise Available in Mobile Audio
Complete Protection Circuitry
(short circuit, over current, thermal, under voltage, reverse polarity, & DC output)
PROFESSIONAL INSTALLATION
To achieve maximum performance and life time warranty coverage (see warranty
statement), Diamond Audio strongly recommends that a factory authorized Diamond
retailer professionally installs your new amplifier. The D9 amplifier is an awesome
component with category leading technology, proper attention must be taken during
installation to ensure optimum performance. The authorized Diamond retailer you
purchased your amplifier from has the training, expertise, and tools for proper
installation. If you decide to install your amplifier yourself, please read this manual
through to become familiar with the amplifiers install and set up procedures.
MOUNTING
D9 Amplifiers can be mounted in any position, even upside down, just as long as airflow
is maintained. Do not install any amplifier under carpet or behind airtight panels.
Maintain 2" of space around the amplifier so that it can breath. If mounting location has
a lack of airflow, ventilations fans must be used to circulate fresh air.
Never mount an amplifier where it can get wet, water damage is not covered by warranty.
D9 Amplifiers utilize their own stealth fan driven cooling system. A sufficient flow of air
around the amplifier will allow the TDX™ thermal management system to operate at
peak efficiency. Air is drawn into the system through center intake ducts in the heat
sink, through the fan, across the circuit board, and out through the exhaust vents on the
end panels. The TDX™ circuitry regulates when the fan is on and how fast it turns
depending on the temperature of the amplifier.
STEALTH DYNAMIC COOLING SYSTEM
DC CONNECTIONS
D9 amplifiers need proper power and ground connections to deliver maximum
performance and efficiency. This is typically the least understood part of the installation
process. The D9 power supply is completely defendant on current, not voltage, so it is
truly regulated by nature. Voltage drops due to poor connections or grounding practices
will only cause the amp to pull more and more current to sustain output. This increased
current draw causes unwanted noise, thermal issues, and will eventually make the amp
shut down or cause the vehicles electrical system to fail.
The gauge of the power and ground cables must be capable of handling the current
needed by the entire system. Power and ground cables must be of the same gauge. If the
alternator is not capable of supplying enough power for both the vehicle AND the audio
system, a high output alternator should be installed for best performance.
7 8
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
Batteries and High Output Alternators…
The battery in your car is a chemical storage device for electrical energy generated by the
alternator. It is capable of briefly supplying high currents for cold starting the vehicle as
well as powering other important electrical loads either partially or entirely for a limited
period when the engine is off.
In order to supply the power required for ignition, lighting, large audio systems etc. a car
needs its own efficient, reliable, and constantly available source of energy. When the
engine is stopped, the battery is the vehicle’s energy source. When the engine is running,
the alternator is the on-board “electricity generating plant.” It is the job of the alternator
to supply power to all current-consuming loads (including the audio system).
Alternator output, battery capacity, and power demand of all electrical loads and systems
must be matched as ideally as possible so the entire system is reliable and trouble-free
in operation.
In the most basic of terms, this means that car audio is gasoline powered. Extra batteries
are primarily for the extended operation of your audio system when the engine is off, or
for SPL competitions where high sound pressure levels are generated for short periods of
time. In which large battery racks are needed to provide the necessary current demanded
by the many amps used.
D9 Series Amplifiers are capable of reproducing “concert level” volumes with incredible
accuracy. Care must be taken to ensure that your vehicle is capable of supplying the
voltage and current required by such a system.
D9 amplifiers are designed to accept up to 0Êgauge power and ground cable, in some
systems this may be overkill, but bigger is always better when it comes to power and
ground connections.
Power & Ground (12VDC)
Because the D9 power supply is more dependent on current than voltage, greater
attention needs to be taken when installing power and ground connections.
These power supplies need an unrestricted flow of current. The proper valued ANL fuse
is recommended. Circuit breakers are ok too, but most AGU and Maxi fuses are not large
enough to handle the load.
The vehicles factory ground at the battery should be upgraded to 0 gauge, the same as
the amplifiers power and ground cable.
The amplifier ground must be sufficient to pass the same amount of current as the
power wire. Therefore, self tapping screws through 1/8" of sheet metal will not suffice. A
3/8" bolt, nut, and lock washer on a solid ground is recommended, typically on the floor
board. Remove any paint, glue or padding from the ground and use a ring terminal.
Capacitors - Capacitors can be very beneficial as they charge and discharge very
quickly while holding the voltage steady. But in systems with a lot of current draw, a
battery is a better choice due to its higher capacity for that current. Capacitors virtually
do nothing for D9 performance.
When using multiple D9 amplifiers, a high output alternator is definitely
recommended.
Strip approximately 1/2 inch of insulation from the end of the power/ground cable going
to the amplifier. Insert the stripped cable into the power block on the end of the amplifier
and tighten the Allen screw. Repeat for each amplifier installed.
Turn-on (Remote)
Locate the terminal labeled “REM” between the ground and +12V power connection
points on the end of the amplifier. Your source unit should have a wire in its harness
labeled “REMOTE” or “AMP TURN-ON.” Some source units come equipped with a “Power
Antenna” lead only. This should also work. Run this wire from your source unit to the
amplifiers REM connection. Strip approximately 1/2Êinch of insulation from the wire.
Insert the wire into the terminal, and tighten the Allen screw. D9 amplifiers will accept
remote turn-on wire up to 10Êgauge or banana jacks directly.
7 8
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
Batteries and High Output Alternators…
The battery in your car is a chemical storage device for electrical energy generated by the
alternator. It is capable of briefly supplying high currents for cold starting the vehicle as
well as powering other important electrical loads either partially or entirely for a limited
period when the engine is off.
In order to supply the power required for ignition, lighting, large audio systems etc. a car
needs its own efficient, reliable, and constantly available source of energy. When the
engine is stopped, the battery is the vehicle’s energy source. When the engine is running,
the alternator is the on-board “electricity generating plant.” It is the job of the alternator
to supply power to all current-consuming loads (including the audio system).
Alternator output, battery capacity, and power demand of all electrical loads and systems
must be matched as ideally as possible so the entire system is reliable and trouble-free
in operation.
In the most basic of terms, this means that car audio is gasoline powered. Extra batteries
are primarily for the extended operation of your audio system when the engine is off, or
for SPL competitions where high sound pressure levels are generated for short periods of
time. In which large battery racks are needed to provide the necessary current demanded
by the many amps used.
D9 Series Amplifiers are capable of reproducing “concert level” volumes with incredible
accuracy. Care must be taken to ensure that your vehicle is capable of supplying the
voltage and current required by such a system.
D9 amplifiers are designed to accept up to 0Êgauge power and ground cable, in some
systems this may be overkill, but bigger is always better when it comes to power and
ground connections.
Power & Ground (12VDC)
Because the D9 power supply is more dependent on current than voltage, greater
attention needs to be taken when installing power and ground connections.
These power supplies need an unrestricted flow of current. The proper valued ANL fuse
is recommended. Circuit breakers are ok too, but most AGU and Maxi fuses are not large
enough to handle the load.
The vehicles factory ground at the battery should be upgraded to 0 gauge, the same as
the amplifiers power and ground cable.
The amplifier ground must be sufficient to pass the same amount of current as the
power wire. Therefore, self tapping screws through 1/8" of sheet metal will not suffice. A
3/8" bolt, nut, and lock washer on a solid ground is recommended, typically on the floor
board. Remove any paint, glue or padding from the ground and use a ring terminal.
Capacitors - Capacitors can be very beneficial as they charge and discharge very
quickly while holding the voltage steady. But in systems with a lot of current draw, a
battery is a better choice due to its higher capacity for that current. Capacitors virtually
do nothing for D9 performance.
When using multiple D9 amplifiers, a high output alternator is definitely
recommended.
Strip approximately 1/2 inch of insulation from the end of the power/ground cable going
to the amplifier. Insert the stripped cable into the power block on the end of the amplifier
and tighten the Allen screw. Repeat for each amplifier installed.
Turn-on (Remote)
Locate the terminal labeled “REM” between the ground and +12V power connection
points on the end of the amplifier. Your source unit should have a wire in its harness
labeled “REMOTE” or “AMP TURN-ON.” Some source units come equipped with a “Power
Antenna” lead only. This should also work. Run this wire from your source unit to the
amplifiers REM connection. Strip approximately 1/2Êinch of insulation from the wire.
Insert the wire into the terminal, and tighten the Allen screw. D9 amplifiers will accept
remote turn-on wire up to 10Êgauge or banana jacks directly.
9 10
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
Amp Current Draw...
The following basic formula can be used as a quick guide to determine the total
amperage draw of a mobile audio system. This formula is based on a 50% amplifier
efficiency rating. Diamond Audio D9 amplifiers are actually much more efficient than
that, but others may be less.
Formula:
Total amplifier rated RMS power x 2 = Total Input Wattage
Total Input Wattage/Battery Voltage = Current Draw (Amps)
Examples:
A D9 800.4 amplifier has 4 channels at 100 Watts per channel RMS into 4 Ohms
totaling 400 Watts. Work the formula as follows:
400 Watts x 2 = 800 W
800 W/13.8 V = 58 A Total Current Draw
A D9 800.2 driven to a 4 ohm mono load has 800 Watts RMS of output, it's current
draw is figured this way:
800 Watts x 2 = 1600 W
1600 W/13.8 V = 115.9 A Total Current Draw
Note: If you are installing multiple amplifiers, add up the total current draw for all of
them and choose the appropriate gauge based on the grand total.
SPEAKER CONNECTIONS
Diamond Audio recommends using speaker wire of at least 16Êgauge. Lay out the wire in
the vehicle from the individual speaker locations to the amplifier(s). Observe safe wiring
precautions.
D9 Amplifiers will accept speaker wire up to 10Êgauge directly. Locate the speaker
terminal block on the end of the amplifier. Strip approximately 1/2Êinch of insulation
from the wire, insert the wire into the terminal, and tighten the Allen screw. Repeat for all
speaker wires. Please observe recommended minimum speaker impedances to prevent
possible damage.
Banana Jacks can be inserted into the speaker block. Remove the set screw completely
and insert the Banana Jack into the end of the block.
D9 PRE-AMP
One design focus of the new D9 series amplifiers is to become a new benchmark in
mobile audio amplifier performance. The D9 amplifiers are capable of extremely low
distortion (THD) and noise performance levels that rival or surpass the finest home and
professional audio amplifiers.
The filter circuitry on the D9 amplifier has been designed to be completely isolated from
the audio signal path unless engaged. As a default, there is no filtration or signal
processing engaged, this allows for the most accurate amplification of the signal
possible.
The D9 amplifier does feature second-order 12 dB/oct. Highpass, Lowpass, and Subsonic
Butterworth filters that are fully adjustable from 10 Hz to 5 kHz. These filters can be
engaged independently to suit any systems needs.
When engaged, these filter networks sum to a flat response at their -3dB break points.
This results in a smooth and seamless transition from one frequency band to the next.
Butterworth filters provide maximally flat frequency responses when compared to other
filter structures
9 10
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
Amp Current Draw...
The following basic formula can be used as a quick guide to determine the total
amperage draw of a mobile audio system. This formula is based on a 50% amplifier
efficiency rating. Diamond Audio D9 amplifiers are actually much more efficient than
that, but others may be less.
Formula:
Total amplifier rated RMS power x 2 = Total Input Wattage
Total Input Wattage/Battery Voltage = Current Draw (Amps)
Examples:
A D9 800.4 amplifier has 4 channels at 100 Watts per channel RMS into 4 Ohms
totaling 400 Watts. Work the formula as follows:
400 Watts x 2 = 800 W
800 W/13.8 V = 58 A Total Current Draw
A D9 800.2 driven to a 4 ohm mono load has 800 Watts RMS of output, it's current
draw is figured this way:
800 Watts x 2 = 1600 W
1600 W/13.8 V = 115.9 A Total Current Draw
Note: If you are installing multiple amplifiers, add up the total current draw for all of
them and choose the appropriate gauge based on the grand total.
SPEAKER CONNECTIONS
Diamond Audio recommends using speaker wire of at least 16Êgauge. Lay out the wire in
the vehicle from the individual speaker locations to the amplifier(s). Observe safe wiring
precautions.
D9 Amplifiers will accept speaker wire up to 10Êgauge directly. Locate the speaker
terminal block on the end of the amplifier. Strip approximately 1/2Êinch of insulation
from the wire, insert the wire into the terminal, and tighten the Allen screw. Repeat for all
speaker wires. Please observe recommended minimum speaker impedances to prevent
possible damage.
Banana Jacks can be inserted into the speaker block. Remove the set screw completely
and insert the Banana Jack into the end of the block.
D9 PRE-AMP
One design focus of the new D9 series amplifiers is to become a new benchmark in
mobile audio amplifier performance. The D9 amplifiers are capable of extremely low
distortion (THD) and noise performance levels that rival or surpass the finest home and
professional audio amplifiers.
The filter circuitry on the D9 amplifier has been designed to be completely isolated from
the audio signal path unless engaged. As a default, there is no filtration or signal
processing engaged, this allows for the most accurate amplification of the signal
possible.
The D9 amplifier does feature second-order 12 dB/oct. Highpass, Lowpass, and Subsonic
Butterworth filters that are fully adjustable from 10 Hz to 5 kHz. These filters can be
engaged independently to suit any systems needs.
When engaged, these filter networks sum to a flat response at their -3dB break points.
This results in a smooth and seamless transition from one frequency band to the next.
Butterworth filters provide maximally flat frequency responses when compared to other
filter structures
11
©2005 Diamond Audio Technology. All Rights Reserved
12
©2005 Diamond Audio Technology. All Rights Reserved
Highpass Subsonic Select
Pushing this button “IN” engages the Subsonic filter. The filter is in Highpass mode
when this button is left “OUT”.
Highpass Enable
Pushing this button “IN” enables the Highpass filter. Leaving this button “OUT"
bypasses the filter entirely.
Lowpass Freq.
Turning this control sets the Lowpass crossover point from 50Hz (fully counterclockwise)
to 5kHz (fully clockwise).
Lowpass Enable
Pushing this button “IN” enables the Lowpass filter. Leaving this button “OUT" bypasses
the filter entirely.
Mono Enable
Pushing this button “IN” creates a mono signal for use with subwoofer systems. When
mono mode is selected, only RCA input channel 1 is used. Leaving the button “OUT”
defaults the amp to normal stereo mode.
+14 dB Input Select
Pushing this button “IN” gives the signal inputs 14 dB of gain allowing them to see 0.3 -
6 V of signal. This should be used with head units that have a low pre-amp output
voltage. Leaving this button “OUT” is the default, allowing for signal voltages from 1.5 -
30 V. In this position, the amplifier will yield the lowest THD.
Highpass Freq.
Turning this control sets the Highpass crossover point from 50 Hz (fully counterclockwise)
to 5 kHz (fully clockwise) or 10 Hz to 1 kHz if in subsonic mode. (see highpass subsonic
select)
D9 800.2D9 800.2
The channels on the D9 800.2 are capable of being bridged to a 4ÊOhm mono output.
Creation of the mono channel is accomplished by using the channel 1 positive (+) output
connection of the amplifier for the speaker positive and the channel 2 negative (-) output
connection of the amplifier for the speaker negative.
Note: It is important that a 4 Ohm minimum total speaker impedance load is observed
when bridging the amp! If an impedance load of less than 4 Ohms is used, you will
eventually damage your amplifier and void your warranty.
Bridging
CH 1/2 INPUTS
The RCA cables from your source unit should be inserted here.
RCA
Gain
This control matches the output voltage of the source unit or processor to the amplifier
inputs. Rotating this control to the “MIN” mark (counterclockwise) configures the D9
800.2 amplifier to accept input voltages as high as 15V RMS with the +14 dB input
circuitry implemented (see +14 dB input selection).
Due to the D9's high signal input and low noise performance capabilities, the gain
structure should be professionally set to achieve maximum performance and lowest
distortion. This should be done with an oscilloscope, DMM, and test tone.
Diamond Audio recommends that an authorized Diamond retailer with the correct
equipment configures this setting. Or see Gain Setting Brief on page 16.
11
©2005 Diamond Audio Technology. All Rights Reserved
12
©2005 Diamond Audio Technology. All Rights Reserved
Highpass Subsonic Select
Pushing this button “IN” engages the Subsonic filter. The filter is in Highpass mode
when this button is left “OUT”.
Highpass Enable
Pushing this button “IN” enables the Highpass filter. Leaving this button “OUT"
bypasses the filter entirely.
Lowpass Freq.
Turning this control sets the Lowpass crossover point from 50Hz (fully counterclockwise)
to 5kHz (fully clockwise).
Lowpass Enable
Pushing this button “IN” enables the Lowpass filter. Leaving this button “OUT" bypasses
the filter entirely.
Mono Enable
Pushing this button “IN” creates a mono signal for use with subwoofer systems. When
mono mode is selected, only RCA input channel 1 is used. Leaving the button “OUT”
defaults the amp to normal stereo mode.
+14 dB Input Select
Pushing this button “IN” gives the signal inputs 14 dB of gain allowing them to see 0.3 -
6 V of signal. This should be used with head units that have a low pre-amp output
voltage. Leaving this button “OUT” is the default, allowing for signal voltages from 1.5 -
30 V. In this position, the amplifier will yield the lowest THD.
Highpass Freq.
Turning this control sets the Highpass crossover point from 50 Hz (fully counterclockwise)
to 5 kHz (fully clockwise) or 10 Hz to 1 kHz if in subsonic mode. (see highpass subsonic
select)
D9 800.2D9 800.2
The channels on the D9 800.2 are capable of being bridged to a 4ÊOhm mono output.
Creation of the mono channel is accomplished by using the channel 1 positive (+) output
connection of the amplifier for the speaker positive and the channel 2 negative (-) output
connection of the amplifier for the speaker negative.
Note: It is important that a 4 Ohm minimum total speaker impedance load is observed
when bridging the amp! If an impedance load of less than 4 Ohms is used, you will
eventually damage your amplifier and void your warranty.
Bridging
CH 1/2 INPUTS
The RCA cables from your source unit should be inserted here.
RCA
Gain
This control matches the output voltage of the source unit or processor to the amplifier
inputs. Rotating this control to the “MIN” mark (counterclockwise) configures the D9
800.2 amplifier to accept input voltages as high as 15V RMS with the +14 dB input
circuitry implemented (see +14 dB input selection).
Due to the D9's high signal input and low noise performance capabilities, the gain
structure should be professionally set to achieve maximum performance and lowest
distortion. This should be done with an oscilloscope, DMM, and test tone.
Diamond Audio recommends that an authorized Diamond retailer with the correct
equipment configures this setting. Or see Gain Setting Brief on page 16.
13
©2005 Diamond Audio Technology. All Rights Reserved
14
©2005 Diamond Audio Technology. All Rights Reserved
Gain (cont.)
Diamond Audio recommends that an authorized Diamond retailer with the correct
equipment configures this setting. Or see Gain Setting Brief on page 16.
D9 800.4D9 800.4
Both sets channels on the D9 800.4 are capable of being bridged to a 4ÊOhm mono
output. Creation of a front mono channel is accomplished by using the channel 1
positive (+) output connection of the amplifier for the speaker positive and the channel 2
negative (-) output connection of the amplifier for the speaker negative. For a rear mono
channel, use 3+ and 4-.
Note: It is important that a 4 Ohm minimum total speaker impedance load is observed
when bridging the amp! If an impedance load of less than 4 Ohms is used, you will
eventually damage your amplifier and void your warranty.
Bridging
CH 1/2 INPUTS
The front RCA cables from your source unit should be inserted here.
CH 3/4 INPUTS
The rear or sub RCA cables from your source unit should be inserted here.
RCA
Gain
This control matches the output voltage of the source unit or processor to the amplifier
inputs. Rotating this control to the “MIN” mark (counterclockwise) configures the D9
800.2 amplifier to accept input voltages as high as 15V RMS with the +14 dB input
circuitry implemented (see +14 dB input selection).
Due to the D9's high signal input and low noise performance capabilities, the gain
structure should be professionally set to achieve maximum performance and lowest
distortion. This should be done with an oscilloscope, DMM, and test tone.
Highpass Subsonic Select
Pushing this button “IN” engages the Subsonic filter. The filter is in Highpass mode
when this button is left “OUT”.
Highpass Enable
Pushing this button “IN” enables the Highpass filter. Leaving this button “OUT"
bypasses the filter entirely.
Lowpass Freq.
Turning this control sets the Lowpass crossover point from 50Hz (fully counterclockwise)
to 5kHz (fully clockwise).
Lowpass Enable
Pushing this button “IN” enables the Lowpass filter. Leaving this button “OUT" bypasses
the filter entirely.
+14 dB Input Select
Pushing this button “IN” gives the signal inputs 14 dB of gain allowing them to see 0.2 -
4 V of signal. This should be used with head units that have a low pre-amp output
voltage. Leaving this button “OUT” is the default, allowing for signal voltages from 1.0 -
20 V. In this position, the amplifier will yield the lowest THD.
Highpass Freq.
Turning this control sets the Highpass crossover point from 50 Hz (fully counterclockwise)
to 5 kHz (fully clockwise) or 10 Hz to 1 kHz if in subsonic mode. (see highpass subsonic
select)
13
©2005 Diamond Audio Technology. All Rights Reserved
14
©2005 Diamond Audio Technology. All Rights Reserved
Gain (cont.)
Diamond Audio recommends that an authorized Diamond retailer with the correct
equipment configures this setting. Or see Gain Setting Brief on page 16.
D9 800.4D9 800.4
Both sets channels on the D9 800.4 are capable of being bridged to a 4ÊOhm mono
output. Creation of a front mono channel is accomplished by using the channel 1
positive (+) output connection of the amplifier for the speaker positive and the channel 2
negative (-) output connection of the amplifier for the speaker negative. For a rear mono
channel, use 3+ and 4-.
Note: It is important that a 4 Ohm minimum total speaker impedance load is observed
when bridging the amp! If an impedance load of less than 4 Ohms is used, you will
eventually damage your amplifier and void your warranty.
Bridging
CH 1/2 INPUTS
The front RCA cables from your source unit should be inserted here.
CH 3/4 INPUTS
The rear or sub RCA cables from your source unit should be inserted here.
RCA
Gain
This control matches the output voltage of the source unit or processor to the amplifier
inputs. Rotating this control to the “MIN” mark (counterclockwise) configures the D9
800.2 amplifier to accept input voltages as high as 15V RMS with the +14 dB input
circuitry implemented (see +14 dB input selection).
Due to the D9's high signal input and low noise performance capabilities, the gain
structure should be professionally set to achieve maximum performance and lowest
distortion. This should be done with an oscilloscope, DMM, and test tone.
Highpass Subsonic Select
Pushing this button “IN” engages the Subsonic filter. The filter is in Highpass mode
when this button is left “OUT”.
Highpass Enable
Pushing this button “IN” enables the Highpass filter. Leaving this button “OUT"
bypasses the filter entirely.
Lowpass Freq.
Turning this control sets the Lowpass crossover point from 50Hz (fully counterclockwise)
to 5kHz (fully clockwise).
Lowpass Enable
Pushing this button “IN” enables the Lowpass filter. Leaving this button “OUT" bypasses
the filter entirely.
+14 dB Input Select
Pushing this button “IN” gives the signal inputs 14 dB of gain allowing them to see 0.2 -
4 V of signal. This should be used with head units that have a low pre-amp output
voltage. Leaving this button “OUT” is the default, allowing for signal voltages from 1.0 -
20 V. In this position, the amplifier will yield the lowest THD.
Highpass Freq.
Turning this control sets the Highpass crossover point from 50 Hz (fully counterclockwise)
to 5 kHz (fully clockwise) or 10 Hz to 1 kHz if in subsonic mode. (see highpass subsonic
select)
15 16
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
GAIN SETTING BRIEF
This brief is designed to provide a simple and accurate procedure for signal level or gain
setting in mobile audio systems.
Tools & Equipment Required:
- Digital Multi-meter (DMM)
- Oscilloscope
- Test Tone CD w/ 1 kHz tone, 0 dB, -6 dB, and -10 dB.
- Custom Adapter Cable (see below)
1/2 Mono Enable
Pushing this button “IN” creates a mono signal for use with subwoofer systems. When
mono mode is selected, only RCA input channel 1 is used. Leaving the button “OUT”
defaults the amp to normal stereo mode.
D9 800.4
3/4 Mono Enable
Pushing this button “IN” creates a mono signal for use with subwoofer systems. When
mono mode is selected, only RCA input channel 3 is used. Leaving the button “OUT”
defaults the amp to normal stereo mode.
1. Disconnect all signal wire from all components in system including RCA's and
speaker wire.
2. Plug custom adapter cable into the outputs of the head unit.
3. Power up the head unit and set all bass, treble, processing and EQ controls to flat or
0, turn loudness control off.
Note: A properly tuned system should only use the bass and treble controls
on the head unit to cut the signal, never to boost. Likewise, the loudness
control should never be needed in a system with amplifiers.
4. Insert the test tone CD, set it to the 1 kHz track at 0 dB, and push repeat.
5. Turn the head unit volume up to approximately half way.
6. Connect the Oscilloscope probes to the alligator clips on the custom adapter cable.
Set the scope to see an unclipped 1 kHz sine wave from the head unit.
7. Turn the head unit volume up slowly until the sine wave on the scope starts to clip
(become square at the top and bottom of the wave).
Male RCA
Positive Alligator Clip
Negative Alligator Clip
Positive
Negative
15 16
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
GAIN SETTING BRIEF
This brief is designed to provide a simple and accurate procedure for signal level or gain
setting in mobile audio systems.
Tools & Equipment Required:
- Digital Multi-meter (DMM)
- Oscilloscope
- Test Tone CD w/ 1 kHz tone, 0 dB, -6 dB, and -10 dB.
- Custom Adapter Cable (see below)
1/2 Mono Enable
Pushing this button “IN” creates a mono signal for use with subwoofer systems. When
mono mode is selected, only RCA input channel 1 is used. Leaving the button “OUT”
defaults the amp to normal stereo mode.
D9 800.4
3/4 Mono Enable
Pushing this button “IN” creates a mono signal for use with subwoofer systems. When
mono mode is selected, only RCA input channel 3 is used. Leaving the button “OUT”
defaults the amp to normal stereo mode.
1. Disconnect all signal wire from all components in system including RCA's and
speaker wire.
2. Plug custom adapter cable into the outputs of the head unit.
3. Power up the head unit and set all bass, treble, processing and EQ controls to flat or
0, turn loudness control off.
Note: A properly tuned system should only use the bass and treble controls
on the head unit to cut the signal, never to boost. Likewise, the loudness
control should never be needed in a system with amplifiers.
4. Insert the test tone CD, set it to the 1 kHz track at 0 dB, and push repeat.
5. Turn the head unit volume up to approximately half way.
6. Connect the Oscilloscope probes to the alligator clips on the custom adapter cable.
Set the scope to see an unclipped 1 kHz sine wave from the head unit.
7. Turn the head unit volume up slowly until the sine wave on the scope starts to clip
(become square at the top and bottom of the wave).
Male RCA
Positive Alligator Clip
Negative Alligator Clip
Positive
Negative
17 18
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
GAIN SETTING BRIEF (cont.)
Note: If precision gain setting of individual crossover channels or sub woofer amplifiers
is needed, choose a sine wave frequency that is in the center of the frequency response of
that output or amplifier. Example: If setting the output level of a low pass crossover
output that has a bandwidth of 30 - 100 Hz, use a 60 Hz test tone to set this output level.
This procedure will give you a system with the maximum signal to noise ratio. It is based
on test tones which are constant, not actual music. Music is not a constant signal and
therefore doesn't clip constantly at certain levels. Because of this, a system that has the
maximum signal to noise ratio may not seem like it plays very loud.
In this case it may be necessary to add some gain overlap to compensate for the low
output of the system. Adding gain to the amplifier will lower the signal to noise ratio of
the system and raise audible distortion, but it will raise the overall output of the system
to a more acceptable level if done correctly.
If the overall output of the system is not satisfactory, retune the system using a -3, -5, or
-6 dB test tone. This will raise the systems signal voltage and gain 3 - 6 dB of output.
Either of these settings are an acceptable compromise. In some cases a -10 dB test tone
is applicable, but not recommended most of the time. When using these test tones to
tune the system, be aware that they may drive the speakers past their mechanical limits.
If this happens, they gains will need to be turned down to protect the speakers from
damage.
If sub output is not satisfactory, but the mids and highs is, adjust by lowering the mids
and highs output level. If the mid and highs output is low, turn the sub gains down. Do
not adjust any of the gains above the maximum undistorted output levels achieved by the
procedure.
GAIN SETTING BRIEF (cont.)
8. Turn the head unit volume down slowly until the clipping disappears. Make note of
the location of volume before clipping. This is the maximum undistorted output
level of the head unit.
Note: Output voltage can be read with the DMM on the 20 V AC scale by
attaching the meter to the alligator clips on the custom adapter cable.
9. Remove the custom adapter cable from the head unit and connect the head unit to
the next component in the signal path. (EQ, line driver, crossover, amplifier,
etc.)
10. Repeat above step 1 - 8 for each component in the signal path in order from the
head unit to the amplifier/s. Be sure to leave the head units volume at the
maximum unclipped output level discovered above.
a. If the component has an input level control as well as an output level
control: Turn the output level to approximately one quarter up. Slowly increase
the components input level until the sine wave clips and the decrease it until
there is no clipping. This is the maximum signal level the inputs can handle.
Slowly increase the output level as high as possible without clipping and move
to the next component.
b. If a component with only output level controls does not clip, leave the level
control set to maximum.
c. If the component does not have any level controls, it should pass the signal
without clipping. Test to ensure there is no clipping on this component. If
clipping does occur, lower the output level of the component before this one
until clipping stops. If the head unit is before this component, consider
replacing this component rather than lowering the head units output.
11. Set the gains on the amplifier/s to the minimum. Connect the Oscilloscope probes
to one channel on the amplifier. Slowly increase the gains on the amplifier until
the signal clips and then back it off until the clipping stops.
a. If the amplifier clips with the gains all the way down, decrease the output
level of the component before the amp until clipping stops.
12. Repeat step 11 for each amplifier gain in the system.
17 18
©2005 Diamond Audio Technology. All Rights Reserved ©2005 Diamond Audio Technology. All Rights Reserved
GAIN SETTING BRIEF (cont.)
Note: If precision gain setting of individual crossover channels or sub woofer amplifiers
is needed, choose a sine wave frequency that is in the center of the frequency response of
that output or amplifier. Example: If setting the output level of a low pass crossover
output that has a bandwidth of 30 - 100 Hz, use a 60 Hz test tone to set this output level.
This procedure will give you a system with the maximum signal to noise ratio. It is based
on test tones which are constant, not actual music. Music is not a constant signal and
therefore doesn't clip constantly at certain levels. Because of this, a system that has the
maximum signal to noise ratio may not seem like it plays very loud.
In this case it may be necessary to add some gain overlap to compensate for the low
output of the system. Adding gain to the amplifier will lower the signal to noise ratio of
the system and raise audible distortion, but it will raise the overall output of the system
to a more acceptable level if done correctly.
If the overall output of the system is not satisfactory, retune the system using a -3, -5, or
-6 dB test tone. This will raise the systems signal voltage and gain 3 - 6 dB of output.
Either of these settings are an acceptable compromise. In some cases a -10 dB test tone
is applicable, but not recommended most of the time. When using these test tones to
tune the system, be aware that they may drive the speakers past their mechanical limits.
If this happens, they gains will need to be turned down to protect the speakers from
damage.
If sub output is not satisfactory, but the mids and highs is, adjust by lowering the mids
and highs output level. If the mid and highs output is low, turn the sub gains down. Do
not adjust any of the gains above the maximum undistorted output levels achieved by the
procedure.
GAIN SETTING BRIEF (cont.)
8. Turn the head unit volume down slowly until the clipping disappears. Make note of
the location of volume before clipping. This is the maximum undistorted output
level of the head unit.
Note: Output voltage can be read with the DMM on the 20 V AC scale by
attaching the meter to the alligator clips on the custom adapter cable.
9. Remove the custom adapter cable from the head unit and connect the head unit to
the next component in the signal path. (EQ, line driver, crossover, amplifier,
etc.)
10. Repeat above step 1 - 8 for each component in the signal path in order from the
head unit to the amplifier/s. Be sure to leave the head units volume at the
maximum unclipped output level discovered above.
a. If the component has an input level control as well as an output level
control: Turn the output level to approximately one quarter up. Slowly increase
the components input level until the sine wave clips and the decrease it until
there is no clipping. This is the maximum signal level the inputs can handle.
Slowly increase the output level as high as possible without clipping and move
to the next component.
b. If a component with only output level controls does not clip, leave the level
control set to maximum.
c. If the component does not have any level controls, it should pass the signal
without clipping. Test to ensure there is no clipping on this component. If
clipping does occur, lower the output level of the component before this one
until clipping stops. If the head unit is before this component, consider
replacing this component rather than lowering the head units output.
11. Set the gains on the amplifier/s to the minimum. Connect the Oscilloscope probes
to one channel on the amplifier. Slowly increase the gains on the amplifier until
the signal clips and then back it off until the clipping stops.
a. If the amplifier clips with the gains all the way down, decrease the output
level of the component before the amp until clipping stops.
12. Repeat step 11 for each amplifier gain in the system.
Product Owners Manual
LIMITED AMPLIFIER WARRANTY STATEMENT
HOW TO OBTAIN WARRANTY SERVICE
©2005 Diamond Audio Technology. All Rights Reserved
TDX AMPLIFIERS
CORPORATE OFFICE:
Diamond Audio Technology, Inc.
410 S. Benson Ln.
Chandler, Arizona 85224 USA
PHONE: (480) 813-6200
FAX: (480) 813-6210
WEB: www.DiamondAudio.com
SERVICE/TECH SUPPORT:
TOLL FREE 1-866-328-2834
TECH SUPPORT EMAIL:
SERIAL NUMBER
DATE OF PURCHASE
Diamond Audio Technology, Inc. (DAT) warrants this amplifier to be free from defects in material and workmanship for the lifetime of the
amplifier in its original installation provided the amplifier was purchased from and installed by an authorized DAT retailer. Amplifiers
purchased from but not installed by an authorized DAT retailer carry a one (1) year parts and labor guarantee.
This warranty is not transferable and applies only to the original purchaser of this amplifier in its original installation. Original
purchaser must reside in the United States and register the amplifier with DAT within 30 days of installation. Warranty registration
information can be found at www.diamondaudio.com or by calling 866-328-2834. Original purchaser must be able to provide proof of
purchase and installation with the sales receipt from the authorized DAT retailer that sold and installed the amp.
Should a manufacturing defect occur in the first three (3) years of the above said warranty period, DAT will replace the defective product
with new product of the same or equivalent value and performance. Should the defect occur after the first three (3), DAT will (at its
discretion), repair or replace the defective product or parts with new or remanufactured product for as long as the amplifier is in its original
installation. Damage or failure caused by any of the following is not covered under this warranty policy: negligence, improper use, abuse,
product modification, unauthorized repair attempts, accident, acts of God, misrepresentations by DAT retailers, and improper/inadequate
packaging during return shipping.
Warranty is void if serial numbers have been removed, altered or defaced or if protective seal is broken.
In the event a DAT product should require service, you should visit the authorized DAT retailer you purchased the product from and they
can expedite your claim. All claims must fall into the guidelines listed above and be accompanied by a copy of the original sales and
installation receipt from that authorized DAT retailer.
Product returned for warranty service must be freight-prepaid, properly packaged and clearly marked with the Return Authorization (RA)
number issued by DAT. Any product returned to DAT that is improperly packaged, does not have a RA number clearly marked on the package,
or never received a RA number; may be refused upon delivery. DAT does not assume responsibility for lost or misdirected product.
Repair or replacement under this warranty is the exclusive remedy of the consumer. DAT shall not be liable for any incidental or
consequential damages for breach of any expressed or implied warranty on this product. Some states do not allow the exclusion or
limitation or incidental or consequential damages, or allow limitations on how long an implied warranty lasts, so the above limitations or
exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights that may vary from state to
state.
Customers outside the United States should contact their local sales office to obtain information on pricing, exchange unit availability,
instructions, service and warranty/non-warranty replacement or repair.
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Diamond D9 & TDX TECHNOLOGY Owner's manual
- Category
- Home audio sets
- Type
- Owner's manual
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