DSPPA MK6906 User manual

Brand
DSPPA
Model
MK6906
Type
User manual

This manual is also suitable for

DSPPA MK6906 Stereo Pre-amplifier is the perfect choice for a wide range of audio applications, from home theater to commercial installations. With its 4 microphone inputs, 3 audio inputs, and a host of features, the MK6906 is versatile and powerful.

Each microphone input has its own volume control, and the MK6906 also features a 7-band equalizer for microphone inputs, allowing you to tailor the sound to your specific needs. The 3 audio inputs can be used to connect a variety of sources, such as CD players, MP3 players, or computers. The MK6906 also has a dedicated MP3 player, so you can play your favorite music directly from a USB drive.

DSPPA MK6906 Stereo Pre-amplifier is the perfect choice for a wide range of audio applications, from home theater to commercial installations. With its 4 microphone inputs, 3 audio inputs, and a host of features, the MK6906 is versatile and powerful.

Each microphone input has its own volume control, and the MK6906 also features a 7-band equalizer for microphone inputs, allowing you to tailor the sound to your specific needs. The 3 audio inputs can be used to connect a variety of sources, such as CD players, MP3 players, or computers. The MK6906 also has a dedicated MP3 player, so you can play your favorite music directly from a USB drive.

Professional Audio System
Stereo Pre-amplifier
MK6906
MK6920
MK6925
电源
7 BAND EQUALIZER FOR MIC
+12dB
0dB
-12dB
64Hz 160Hz 400Hz
1KHz
2.5KHz 6.4KHz 15KHz
BALANCETREBLEBASS
MP3 DISPLAY MP3
MIC 4
PROT
1086
42
AUX
MIC 1 MIC 2 MIC 3 AUX VOL
L
R
MP3
AUX1
AUX2
AUX3
POWER
+
MAIN VOL
DELAYECHO REPEAT
MIC 2MIC 1
MIC
Stereo Pre-amplifier MK6906
User’s Manual
For the better application of this equipment, please read the operation instruction carefully prior to use.
G u a n g z h o u D S P PA A u d i o C o . , L t d .
w w w. d s p p a t e c h . c o m
About this Manual
This manual start to be use when the Stereo Pre-amplifier MK6906/MK6920 development is
completed, the manual contains the micro-intelligent MK6906/MK6920 equipment system
introduction, the use of precautions, system connection instructions, product use instructions and many
other contents. Please read this manual carefully before connecting and installing. And follow the
instructions in the instructions to operate.
A description of this logo on the rear panel of the machine is a matter that must be noted. Be sure to
use or follow these instructions when using it
Warning
In order to prevent damage to users, others, equipment damage, or property loss, be sure to observe the
following basic precautions:
■ Please make sure that the
power wire is NOT damaged.
Do NOT unplug the equipment
by pulling the power wire;
otherwise it may cause electric
shock, short circuit or fire.
■ When the equipment is in use, DO NOT block the air
outlet which should be kept clear, in order to avoid
overheat.
■Do NOT store this
equipment in any
place with heavy
dust or vibration, or
where it is extremely
cold or hot.
■ Please do NOT place any heavy article on this
equipment. Please operate
switches, buttons or
external audio source
carefully.
■ Please prevent foreign matters (such as paper,
metal etc.) entering the equipment through the gaps
or opening, in such cases, please cut off the power
supply
immediat
ely.
■ Do NOT attempt to remove any internal component
to
■ In case that sound is suddenly off or there is
abnormal odor or smoke, please unplug the
equipment from the power socket to avoid potential
electric shock, fire or other accident. The equipment
should be inspected by professional personnel.
Burning Smell
■ If the equipment is not in use for a long period, please
unplug it from the AC power socket to realize zero
energy consumption.
Contents
1. PRODUCT INTRODUCTION......................................................................................................................................1
1.1 ABOUT MK6906/MK6920/MK6925.......................................................................................................................... 1
1.2 FEATURES.................................................................................................................................................................... 1
2. APPEARANCE DESCRIPTION.................................................................................................................................. 2
2.1 FRONT PANEL.............................................................................................................................................................. 2
2.2 REAR PANEL................................................................................................................................................................ 3
3. CONNECTION DIAGRAM..........................................................................................................................................5
3.1 SYSTEM DIAGRAM.......................................................................................................................................................5
3.2 SPEAKER CONNECTION DIAGRAM............................................................................................................................... 5
SPECIFICATION...............................................................................................................................................................7
PACKING LIST..................................................................................................................................................................8
* www.dsppatech.com
1
1. Product Introduction
1.1 About MK6906/MK6920/MK6925
MK6906/MK6920/MK6925 amplifier integrates balancing function and pre-amplifier and post amplifier. The
series is equipped with three sets of stereo sound source input ports, four microphone input ports, a stereo line
output ports, an recording output port and two groups of amplifier output terminals. Volume of three-way stereo
sound source channels can be controlled independently cooperating with function of “choose 1 out of 4”. Volume
of four microphones can be controlled independently. There is also a master volume control knob on the front
panel. Equipped with seven equal sections, output volume is adjustable.
This product is more user-friendly designed. It adopts innovative technology and produces powerful,
beautiful sound. Its functional operation is clear at a glance. At the same time, the product is designed for
conference, sound volume is adjustable. Besides, it has multiple protection and enough function, stable and
suitable for conference, background music, Karaoke OK, audio-visual and family engineering support.
1.2 Features
With 4 microphone inputs that can be balanced or unbalanced, independent volume adjustment of each
microphone, with mixing processing function and 7 equalization adjustment for microphone input, with
phantom power supply available (+48V)
With 3 audio (stereo) input, 2 audio output, with volume, bass, treble and equalization adjustment for audio
input
With audio source selection to select between line input and MP3. Audio from three ways and MP3 cannot
be output simultaneously. Only one channel or MP3 can output once.
Can play MP3 by USB. Can switch between two modes, select program, adjust volume, and select repeating
mode and EQ mode
With master volume adjustment
MK6906, with rated power 2×60W/8Ω (when working alone, power of each channel is 60W/8Ω)
MK6912, with rated power 2×120W/8Ω (when working alone, power of each channel is 120W/8Ω)
MK6925, with rated power 2×250W/8Ω (when working alone, power of each channel is 250W/8Ω)
With DC output protection, overload protection, short circuit protection and overheat protection
With output level and protection indicators for two channels
Infrared remote control of MP3
* www.dsppatech.com
2
2. Appearance Description
2.1 Front panel
电源
7 BAND EQUALIZER FOR MIC
+12dB
0dB
-12dB
64Hz 160Hz 400Hz
1KHz
2.5KHz 6.4KHz 15KHz
BALANCETREBLEBASS
MP3 DISPLAY
MP3
MIC 4
PROT
1086
42
AUX
MIC 1 MIC 2 MIC 3 AUX VOL
L
R
MP3
AUX1
AUX2
AUX3
POWER
+
MAIN VOL
DELAYECHO REPEAT
MIC 2MIC 1
MIC
1 2
3
4
5 6
7
8 9 10
11 12
13
14
15 16
17
Stereo Pre-amplifier MK6906
1. POWER
2. MIC1\2
Mic signal input port with independent volume
control.
3. MIC volume 1\2\3\4
Each mic is with independent volume control. Turn
clockwise to increase the volume and turn
counterclockwise to decrease the volume.
4. ECHO
Adjust the echo volume and the ratio between echo
and the direct sound to better the effect.
5. DELAY
Can control the delay time. It’s the best to put switch
to the middle position.
6. REPEAT
For controlling frequency of echo repeating. It’s the
best to put switch to the middle position.
7. BASS
Clockwise adjustment for lifting, counterclockwise
adjustment for decreasing
8. TREBLE
Clockwise adjustment for lifting, counterclockwise
adjustment for decreasing
9. BALANCE
Control the sound image position of the main
channel and adjust the audio and video balance to its
best.
10. AUX volume adjustment (master volume)
The button is for adjusting three channels’ volume
(channel 1/2/3). The object adjusted depends on the
selected channel.
11. Output volume level indicator
If the 4
th
and 5
th
indicator is lighted, it means the
output gets tip distortion. Then you should adjust the
volume to turn it down and the 4
th
and 5
th
indicator
will flash.
12. 7 segment equalization adjustment fader
Slide the fader up to raise the amplitude of the band,
and slide the fader down to attenuate the amplitude
of the band.
13. MP3 player
MP3 program sequence display.
14. USB port
Connect to the audio device and turn on the power.
* www.dsppatech.com
3
select the MP3 channel source on the panel, insert the
USB interface in the USB program USB and the machine
will automatically start playing.
15. MP3 playing control buttons
Those buttons are play/pause, the previous one/the next
one
16. Channel selection button and indicator
Press the button to choose a sound source (AUX1、
AUX2、AUX3、MP3)to play. Indicator of selected
sound source will light up.
17. Master volume control
Turn clockwise to increase the volume and turn
counterclockwise to decrease the volume.
2.2 Rear panel
~220V/50Hz/4A
F2AL250V
请勿打开,以免触电
警告
RISK OF ELE CTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2 31
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
12
3
456789
10
产品名称:立体声前级功放
~220V/50Hz/8A
F8AL250V
请勿打开,以免触电
警告
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2
3
1
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
产品名称:立体声前级功放
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
1
2
3
456
7
89
10
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
~220V/50Hz/6A
F4AL250V
请勿打开,以免触电
警告
RISK OF ELE CTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2 31
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
12
3
456789
10
产品名称:立体声前级功放
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
MK6920
MK6906
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
Rear Panel of MK6906
~220V/50Hz/4A
F2AL250V
请勿打开,以免触电
警告
RISK OF EL ECTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2 31
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
12
3
456789
10
产品名称:立体声前级功放
~220V/50Hz/8A
F8AL250V
请勿打开,以免触电
警告
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2
3
1
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
产品名称:立体声前级功放
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
1
2
3
456
7
89
10
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
~220V/50Hz/6A
F4AL250V
请勿打开,以免触电
警告
RISK OF EL ECTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2 31
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
12
3
456789
10
产品名称:立体声前级功放
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
MK6920
MK6906
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
Rear Panel of MK6920
~220V/50Hz/4A
F2AL250V
请勿打开,以免触电
警告
RISK OF EL ECTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2 31
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
12
3
456789
10
产品名称:立体声前级功放
~220V/50Hz/8A
F8AL250V
请勿打开,以免触电
警告
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2
3
1
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
产品名称:立体声前级功放
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
1
2
3
456
7
89
10
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
~220V/50Hz/6A
F4AL250V
请勿打开,以免触电
警告
RISK OF EL ECTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2 31
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
12
3
456789
10
产品名称:立体声前级功放
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
MK6920
MK6906
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
Rear Panel of MK6925
* www.dsppatech.com
4
1. Power socket
Connect to~220V/50Hz/6A power. Don’t plug or unplug it when it’s powered on.
2. Fan window
For spreading heat.
3. Amplifier L output port
Can connect to multiple speakers. Total resistance should be no less than 8Ω.
4. Amplifier R output port
Can connect to multiple speakers. Total resistance should be no less than 8Ω.
5. Recording output
Can connect to peripheral equipment for audio recording.
6. Line output
For connecting to peripheral amplifier as aux line output port.
7. Audio input port
3-line audio stereo input. Can expand the local source input. Can connect to local DVD/radio. Note: Those 3-line
output and MP3 can’t be output together. Only one-line output or MP3 can be output.
8. MIC4 input port
9. MIC3 input port
10. +48Vphantom power switch
Turn the switch to “ON” and the +48V phantom power for the mic will be on. Turn the switch to “OFF” and the
phantom power will be off. When supporting the use of condenser microphones:
1: When using the condenser microphone, please turn the switch "PHANTOM" to "ON" position.
2: When using the moving coil microphone, please turn the switch "PHANTOM" to "OFF" position.
* www.dsppatech.com
5
3. Connection Diagram
3.1 System diagram
3.2 Speaker connection diagram
Speaker
Power amplifier
CD player
Tuner
MP3 player
~220V/50Hz/8A
F8AL250V
请勿打开,以免触电
警告
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION!
PHANTOM +48V
ON OFF
MIC 4MIC 3
2 31
AUX
IN
AUX
OUT
REC
OUT
R
+ + + +
L
L
R
L
R
L
R
产品名称:立体声前级功放
广州市迪士普音响科技有限公司
Guangzhou DSPPA Audio Co.,Ltd.
Nur Sicherung 250V
Use Only With A 250V Fuse
Employer Unlquement Avec
Fusible De 250V
R
+ + + +
L
+
8Ω
_
* www.dsppatech.com
6
Safety Precautions
1． Safety Instruction
Do not insert the power plug of this device into the grid before connecting the system cable.
Make sure that the voltage input to the device is the same as this device. Otherwise, there is danger of burning the
equipment.
There is a dangerous voltage inside the machine, the voltage can cause electric shock, do not open the case, to
avoid the risk of electric shock.
When the power supply of this equipment is turned off, the machine is not completely disconnected to the power
supply. For safety reasons, please unplug the power plug from the outlet when the equipment is not using.
Do not place the device in a sub-cooled or overheated place.
Make sure that the working environment of the equipment is well ventilated, to avoid heating up during operation
and cause the equipment to be damaged.
Unplug the power plug in noisy weather or for longer periods of time.
Remove or reassemble any part of the device, disconnect or re-connect any electrical plugs or other connections to
the equipment, unplug the power plug to ensure that the device is completely disconnected from the grid.
When the equipment is faulty, the non-professionals without permission, please do not open the cabinet for
maintenance, to avoid accidents or increase the extent of damage to the equipment.
Do not place any corrosive chemicals near or above the equipment.
2． After-sales service note
Since the date of purchase, in accordance with the provisions of this manual to install and use, but there are quality
problems in the normal use, the company will provide three years of free warranty services. (including free
replacement parts)
About the warranty, the user must show the warranty card, user self-existence and sales invoice as a certificate.
The following conditions do not belong to the scope of free warranty:
1.Damage caused by improper installation, use or handling;
2.Damage the product due to abnormal conditions (Such as excessive power supply voltage or ambient humidity, etc.)
3.Due to natural disasters and other accidents caused by product damage;
4.Product body number is converted, altered or removed;
5.The product has been repaired or modified by an authorized person of other company;
Please keep the manual and warranty card.
For questions or precautions that are not mentioned in this manual, please contact your dealer or visit our website at
http://www.dsppatech.com if necessary.
If you are facing a malfunction during the warranty period, please contact our service personnel (or dealer) for repair
and handling. The Company will not be responsible for the free warranty if the self-disassemble or damage caused by
maintenance without our own technical staff.
* www.dsppatech.com
7
Specification
Model
MK6906
MK6920
MK6925
Microphone input sensitivity
5 ± 0.5mV
4.5±0.5mV
Line input sensitivity
250 ± 50mV
MP3 input -10dB / 1KHZ sine wave
Output 23V
Output 32V
Output 45V
Line output voltage
950 ± 150mV
Total harmonic distortion
≤0.5 (1KHz, normal working conditions)
Line frequency response
20-20k Hz (± 3dB)
Microphone frequency response
80-20k Hz (± 3 dB)
Microphone 7 balanced
64HZ: ± 12dB
160HZ: ± 12dB
400HZ: ± 12dB
1KHZ: ± 12dB
2.5KHZ: ± 12dB
6.4KHZ: ± 12dB
15KHZ: ± 12dB
Line input and MP3 tone adjustment range
bass
100Hz: ± 12dB
Treble
10KHz: ± 12dB
Signal to noise ratio (8Ω output)
≥75dB
Working power supply
AC220/ 50Hz
Phantom voltage
+ 48V
Rated power consumption
8Ω 60W
8Ω 120W
8Ω 250W
Protective function
Overload, over temperature, short circuit
Dimension (L × W × H)
483x 310x 88 mm
Package dimension (L × W × H)
520mm×395mm×170mm
Gross weight
9.5kg
10.15kg
7.6kg
Net weight
7.5kg
8.15kg
5.6kg
Specifications are subject to change without notice.
* www.dsppatech.com
8
Packing List
No.
Item
Quantity
1
MK6906/MK6920/MK6925
1
2
User Manual
1
3
Warranty card
1
4
Certificate
1
5
SY542 cable/1500MM/Audio cable/V3.1
1
6
MP-P power line
1
7
Washer
4
8
Semi-round crosshead screws/White/5×19
4
9
Round crosshead screws/Black/3×8
8
10
EVA mat
4
11
Handle
2
Guangzhou DSPPA Audio Co., Ltd.
Attention
● When the power switch of this unit is in the "off" state, the machine is not completely disconnected from the
power supply. For the sake of safety, please unplug the power cord from the outlet when the device is not in use.
● The device cannot withstand water droplets or water splashes and cannot place items such as vases filled with
water on the equipment.
● Do not open the machine cover, to prevent electric shock. If necessary, by a professional certificate of
professional staff to repair.
● Terminals marked with symbols in the device indicate hazardous, and the operation of connecting these
terminals must be carried out by instructed personnel.
● The device is connected through the power cord and the power supply. When the equipment fails or is
dangerous, Unplug the power cord to disconnect the device from the grid, so it is required to place the power
outlet in a place where the power cord can be easily plugged.
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DSPPA MK6906 User manual

Brand
DSPPA
Model
MK6906
Type
User manual
This manual is also suitable for

DSPPA MK6906 Stereo Pre-amplifier is the perfect choice for a wide range of audio applications, from home theater to commercial installations. With its 4 microphone inputs, 3 audio inputs, and a host of features, the MK6906 is versatile and powerful.

Each microphone input has its own volume control, and the MK6906 also features a 7-band equalizer for microphone inputs, allowing you to tailor the sound to your specific needs. The 3 audio inputs can be used to connect a variety of sources, such as CD players, MP3 players, or computers. The MK6906 also has a dedicated MP3 player, so you can play your favorite music directly from a USB drive.

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