User Instructions
This booklet contains important information concerning the proper and safe operation of your new amplifier.
UA-Series
UA-3000 / UA-4000 / UA-5000
Made in Taiwan
Professional Power Amplif iers
Index
02 Introduction
03 Front Panel
04 UA-3000 Rear Panel
05 UA-4000/5000 Rear Panel
6 Set Up0
08 Operating Modes
Protection11
12 Specifications
UNiKA
POWE R
ONOFF
SIGNALSIGNAL SIGNAL
CLIPCLIP CLIP
0 100 10 0 10
CH 1 CH 2 CH 3
PRO FESS IONAL AM PLIF IER
UA-3000
UNiK A
SIGNALSIGNALSIGNAL SIGNAL
CLIPCLIPCLIP CLIP
0 100 100 10 0 10
CH 2CH 1 CH 3 CH 4
PRO FESS IONAL AM PLIF IER
UA-4000
UNiK A
POWE R
ONOFF
SIGNALSIGNALSIGNAL SIGNAL
CLIPCLIPCLIP CLIP
0 100 100 10 0 10
CH 2CH 1 CH 3 CH 4
PRO FESS IONAL AM PLIF IER
UA-5000
UNiK A
POWE R
ONOFF
IMPORTANT SAFETY INSTRUCTIONS UA-3000/UA-4000/UA-5000
page 1
This symbol is intended to alert the user to the presence of
non insulated "dangerous voltage" within the product's
enclosure that may be of sufficient magnitude to constitute
a risk of electric shock to persons.
!
CAUTION: Risk of the electrical shock - DO NOT OPEN!
CAUTION: To reduce the risk of electrical shock, do not remove cover. No user serviceable parts inside. Refer all servicing
to qualified service personnel.
WARNING: To prevent electrical shock or fire hazard, do not expose this amplifier to rain or moisture. Before using this
amplifier read the user manual for further warnings.
This symbol is intended to alert the user of
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the product.
Este símbolo tiene el propósito de alertar al usuario de la
presencia de “voltaje peligroso” que no tiene aislamiento
dentro de la caja del producto que puede tener una
magnitud sufciente como para constituir riesgo de corrientazo.
!
PRECAUCIÓN: Riesgo del choque eléctrico - NO SE ABRA
PRECAUCIÓN: Para disminuir el riesgo de choque eléctrico, no quite la cubierta. No hay piezas adentro que el usario puede
reparar. Deje todo mantenimiento al los técnicos cualifcados.
ADVERTENCIA: Para prevenir choque eléctrico o riesgo de incendios, no deja expuesto a la lluvia o a la humedad este amplif
cador. Antes de usar este amplif cador, lea mas advertencias en la guia de operacion.
Este símbolo tiene el propósito de alertar al
usuario de la presencia de instrucciones
importantes sobre la operación y
mantenimiento en la literatura que vienc con el producto.
Ce symbole est utilisé pur indiquer à l’utilisateur la présence
à l'intérieur de ce produit de tension non-isolée
dangereuse pouvant être d'intensité suffisante pour
constituer un risque de choc électrique.
!
ATTENTION: Risque de choc électrique - NE PAS OUVRIR!
ATTENTION: Afin de réduire le risque de choc électrique, ne pas enlever le couvercle. Il ne se trouve à l’intérieur aucune piéce
pouvant être réparée par l'utilisateur. Confier l'entretien à un personnel qualifé.
AVERTISSEMENT: Afin de prévenir les risque de décharge ou de feu, n’exposez pas cet appareil à la pluie ou à l’humidité.
Avant d’utiliser cet amplificateur, lisez les avertissements supplémentaries situés dans le guide.
Ce symbole est utilisé pour indiquer à l’utilisateur
qu'il trouvera d'importantes instructions
importantes sur l'utilisation et l'entretien de
l'appareil dans la littérature accompagnant le produit.
Dieses Symobl soll den Anwender vor unisollierten
gefährlichen Spannungen innerhalb des Gehäuses warnen,
die von Ausreichender Stärke sind, um einen elektrischen
Schlag verursachen zu können.
!
VORSICHT: Risiko - Elektrischer Schlag! Nicht öffnen!
VORSICHT: Um ddas Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung enfernen. Es befinden sich keine
Teile darin, die vom Anwender repariert werden könnten. Reparaturen nur von qualifzierte Fachpersonal
durchführen lassen.
ACHTUNG: Um einen elektrischen Schlag oder Feuergefahr zu vermeiden, sollte diesen Gerät nicht dem Regen oder
Feuchtigkeit ausgesetz werden. Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen.
Dieses Symobl soll den Benutzer auf wichtige
Instruktionen in der Bedienungsanleitung
aufmerksam machen, die Handhabung und
Wartung des Produkts betreffen.
CAUTION
Do not open -
risk of electric shock
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE THE COVER. THERE ARE NO USER
SERVICEABLE PARTS INSIDE. REFER ALL SERVICE TO
YOUR AUTHORIZED DEALER.
The lightning flash with an arrow triangular
symbol is intended to alert the user to the
presence of non insulated “dangerous
voltage” within the products enclosure, and
may be of sufficient magnitude to constitute
a risk of electric shock.
The exclamation point triangular symbol is
intended to alert the user to the presence of
important operating and maintenance
(servicing) instructions in the user manual
accompanying the amplifier.
!
!
FOR OPTIMUM PERFORMANCE AND RELIABILITY
DO NOT PRESENT THE AMPLIFIER WITH A
SPEAKER LOAD OF LESS THAN 2 OHMS OR ANY
COMBINATION OF SPEAKERS THAT TOGETHER ARE LESS
THAN 2 OHMS!
USING ONE SPEAKER, IT MUST BE RATED AT 4 OR MORE
OHMS. USING TWO SPEAKERS, THEY MUST RATED EACH AT 4
OR MORE OHMS.
USING THREE SPEAKERS, THEY MUST BE RATED EACH AT 8
OR MORE OHMS.
POUR ASSURER LA FIABILETE ET OBTENIT UNE
PERFORMANCE OPTIMALE, NESOUMETTE
JAMAIS L’AMPLIFICATEUR A UNE CHARGE
D’IMPEDANCE
TOTALE INFERIEURE A 2 OHMS, NI AVEC UN H.P. N EN
COMBINAISON DES H.P.
AVEC UN H.P., IL FAUT UNE CHARGE D’IMPEDANCE MINIMUM
DE 2 OHMS.
AVEC DEUX H.P., FAUT POUR CHAOUN UNE CHARGE
D’IMPEDANCE MINIMUM DE 4 OHMS.
AVEC TROIS H.P., FAUT POUR CHAOUN UNE CHURGE
D’IMPEDANCE MINIMUM DE 8 OHMS.
!
!
page 2
IMPORTANT PRECAUTIONS
To reduce the risk of electrical shock or fire, do not expose this unit rain or
moisture.
Do not spill water or other liquids into or on to your unit.
Do not attempt to operate this unit if the power cord has been frayed or
broken.
Do not attempt to remove or break off the ground prong from the electrical
cord. This prong is used to reduce the risk of electrical shock and f re in
case of an internal short.
Disconnect mains power before making any type of connection.
Do not remove the cover under any conditions. There are no user
serviceable parts inside.
Never plug this unit in to a dimmer pack.
Always be sure to mount this unit in an area that will allow proper
ventilation. Allow about 6” (15cm) between this device and a wall.
Do not attempt to operate this unit if it becomes damaged.
This unit is intended for indoor use only, use of this product outdoors voids
all warranties.
During long periods of non-use, disconnect the unit’s mains power.
Always mount this unit in a safe and stable manner.
Power cords should be routed so they are not likely to be walked on,
pinched by items placed upon or against them.
Cleaning -The outside of the unit should be wipe down with a soft cloth and
mild cleaner when needed.
Heat -The amplifier should be situated away from heat sources such as
radiators, heat registers, stoves, or other appliances (including amplifiers)
that produce heat.
The fixture should be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged.
B. Objects have fallen, or liquid has been spilled into the unit.
C. The appliance has been exposed to rain or water.
D. The fixture does not appear to operate normally or exhibits a
marked change in performance.
Congratulations and thank you for purchasing UA-3000/UA-4000/UA-5000
amplifiers. These amplifiers are representation of UNiKA’s continuing
commitment to produce the best and highest quality audio products at an
affordable price. These amplifiers are designed to provide a big impact in
sound reproduction. Please read and understand this manual completely
before attempting to operate your new amplifier. This booklet contains
important information concerning the proper and safe operation of your new
amplifier.
UNPACKING: Every UA-3000/UA-4000/UA-5000 amplifier has been
thoroughly tested and has been shipped in perfect operating condition.
Carefully check the shipping carton for damage that may have occurred
during shipping. If the carton appears to be damaged, carefully inspect your
unit for any damage and be sure all accessories necessary to operate the
system have arrived intact. In the event damage has been found or parts are
missing, please contact your dealer for further instructions.
INSTALLATION: These amplifiers are designed to mount into a
standard 19”rack. The front panel provides four holes used to screw the unit
into a rack. The unit also provides a way to rear mount the unit into a rack for
added security. Rear mounting the unit is especially recommended if the
unit is to mounted into a mobile rack.
INTRODUCTION
Introduction Front Panel Rear Panel Set Up Operating Modes Protection Specifications
UNiKA UA-3000/UA-4000/UA-5000
US-3000/4000/5000 FRONT PANEL
page 3
Figure 2
1. Rack Mounting Ears - Two front panel mounting holes are provided on
each mounting ear.
2. Fan Inlet Grills and Filter - UA Series amplifiers are cooled by two rear-
mounted fans. Cool air from front grills is filtered and flows over the heat
sinks and exhausts to back side. Make sure these outlets remain clear to
allow unrestricted air flow.
3. AC Power Switch - UA Series amplifiers have a front-panel AC mains
power switch.
4. Power Indicator - This LED will glow when mains power is applied to the
unit. This light may continue to glow briefly after mains power has been
turned off, this is normal.
5. Channel 1-3 Clip Indicator (for UA-4000 & UA-5000: Channel 1-4 Clip
Indicator) - This LED will begin to flash when the channel begins to
overload (clip), at this point the channel will begin to distort. Under
heavy clipping activity, lower the channel's gain control to reduce the
risk of damage to your speakers and amplifier. This LED may glow when
the unit has been turned off, this is normal.
6. Channel 1-3 Signal Indicator (for UA-4000 & UA-5000: Channel 1-4 Signal
Indicator) - Illuminates to indicate that a signal (above a minimum threshold)
is present at the amplifier input, and that the signal is being amplified.
7. Channel 1-3 Gain Control (for UA-4000 & UA-5000: Channel 1-4 Gain
Control) - This rotary knob is used to control the output signal level of
the channel. Turning the knob in a clockwise direction will increase
output signal level.
8. UNiKA Logo and Model No - UA series have 2 types of 2U models UA-
3000 / UA-4000 / UA-5000.
PO WER
ONOF F
SIGNALSIGNAL SIGNAL
CLIPCLIP CLIP
0 100 10 0 10
CH 1 CH 2 CH 3
PRO F E SSIONAL AM P L I FIER
UA-3000
UNiKA
SIGNALSIGNALSIGNAL SIGNAL
CLIPCLIPCLIP CLIP
0 100 100 10 0 10
CH 2CH 1 CH 3 CH 4
PRO F E SSIONAL AM P L I FIER
UA-4000
UNiKA
PO WER
ONOF F
1 5432 86 7
1 5432 86 7
Figure 1
Introduction Rear Panel Set Up Operating Modes Protection SpecificationsFront Panel
UNiKA UA-3000/UA-4000/UA-5000
page 4
9. Fan Outlet Ports - Cooling air enters the amplifier through the front
grills and exhausts through the fans. Be sure not to block these ports
when installing the amplifier or other associated equipment. Air must
flow unimpeded through these ports.
10. Channel 3 Frequency Adj. - This pot adjust the frequency level sent
to your speaker on channel 3 when using your amplifier in subwoofer
mode.
11. Subwoofer/Bypass Switch - This switch will enable the channel 3 to
be a subwoofer channel or bypass the subwoofer function.
12. Input Selector for the Channel 3 - Either selected the signal input from
the balanced XLR or the mixed signal from channel 1 and channel 2.
13. Channel 1-3 Input - This is the input terminal of the audio signal that can be
connected to the balanced XLR and unbalanced RCA input connectors.
XLR pin setting: Pin-3/signal Negative, Pin-2/signal Positive, Pin-1/Ground;
RCA pin setting: Tip/signal Positive, Barrel/Ground.
14. Breaker - This breaker is an AC protection circuit from short circuit.
Just push the switch to reset.
15. Channel 1-3 Output Jack / 5-Way Binding Post - Connect each
speaker to channel 1-3 output terminal respectively.
16. Ground Lift Switch - This switch is used to disconnect the internal
ground signal from the amplifier chassis ground. This may reduce the
buzz that is caused from an electrical 50Hz/60Hz cycle.
17. A/C Power Input - IEC AC power inlet connector, plug this cable in to a
standard 110 or 220V wall outlet. Be sure that supplied voltage
matches that of the required voltage of your amplifier. Never plug your
amplifier in to a wall outlet that does not match the required voltage of
your amplifier, serious damage may occur to your unit.
UA-3000 REAR PANEL
Figure 3
13 14
12
10 11
200Hz20Hz
SUB WOOFER
FREQUENCY
CH 2 CH 1
LIFT
GROUND
CH-1CH-2
~120VAC 60Hz
1500 WATTS
CH-3
AC INPUT
BREAKER
RESET
INPUT
BalanceBalanceBalance
CH 3 Ext Input CH 3
SUB ON
BYPASS
EXT INP UT
CH 1 & CH 2
INPUT
SELECT
6
A
M
P
9
171615
Introduction Front Panel Set Up Operating Modes Protection SpecificationsRear Panel
UNiKA UA-3000/UA-4000/UA-5000
Figure 4
page 5
18. Fan Outlet Ports - Cooling air enters the amplifier through the front
grills and exhausts through the fans. Be sure not to block these ports
when installing the amplifier or other associated equipment. Air must
flow unimpeded through these ports.
19. Channel 1-4 Input - This is the input terminal of the audio signal that can be
connected to the balanced XLR and Euro Block Diagram.
XLR pin setting: Pin-3/signal negative, Pin-2/signal positive, Pin-1/ground;
Euroblock pin setting: (+): signal positive - Hot, (-): signal negative – Cold;
( ): ground
20. Parallel Input Switch for Channel 3 and 4 - Input signal of channel 3
and 4 in parallel mode. When switch “ON”, it's “Parallel Mode” state,
otherwise it's “Stereo Mode” state when switch “OFF”.
21. Mono Bridge Switch for Channel 3 and 4 - Input signal of channel 3
and 4 in bridge mode. When switch “ON”, it's “Bridge Mode” state,
otherwise it's “Stereo Mode” state when switch “OFF”.
22. Input Selector for the Channel 3 - Either selected the signal input from
the balanced XLR or the mixed signal from channel 1 and channel 2.
23. Channel 3 Frequency Adj. - This pot adjust the frequency level sent
to your speaker on channel 3 when using your amplifier in subwoofer
mode.
24. Channel 3 Subwoofer Mode On/Off Switch - This switch will enable the
channel to be a subwoofer channel or bypass the subwoofer function.
25. Parallel Input Switch for Channel 1 and 2 - Input signal of channel 1
and 2 in parallel mode. When switch “ON”, it's “Parallel Mode” state,
otherwise it's “Stereo Mode” state when switch “OFF”.
26. Mono Bridge Switch for Channel 1 and 2 - Input signal of channel 1
and 2 in bridge mode. When switch “ON”, it's “Bridge Mode” state,
otherwise it's “Stereo Mode” state when switch “OFF”.
27. Breaker - This breaker is an AC protection circuit from short circuit.
Just push the switch to reset.
28. Channel 1-4 Output Jack / 5-Way Binding Post - Connect each
speaker to channel 1-4 output terminal respectively.
29. Ground Lift Switch - This switch is used to disconnect the internal
ground signal from the amplifier chassis ground. This may reduce the
buzz that is caused from an electrical 50Hz/60Hz cycle.
30. A/C Power Input - Plug this cable in to a standard 110 or 220V wall
outlet. Be sure that supplied voltage matches that of the required
voltage of your amplifier. Never plug your amplifier in to a wall outlet
that does not match the required voltage of your amplifier, serious
damage may occur to your unit.
UA-4000 / UA-5000 REAR PANEL
19
27
23
3028
15
A
M
P
CH4 & CH3 CH2 & CH1
CH 4 CH 3
INPUT
PARALLEL
INPUT
PARALLEL
BRIDGE BRIDGE
CH 1CH 2
CH-3
_
+
CH-4
_
+
+ +
__
BRIDGE
MONO
BRIDGE
MONO
CH-1
_
+
CH-2
_
+
AC IN
BREAKER
RESET
GROUND
LIFT
_ _
+ +
4 CHANNEL INPUT BALANCE
CAUTION
2 OHMS MINIMUM IMPEDANCE PER CHANNEL
4 OHMS MINIMUM IMPEDANCE IN MONO BRIDGE MODE
200Hz20Hz
_ _
+ +
~120VAC 60Hz
1500 WATTS
CH1 & CH2
CH3 INPUT
SUB WOOFER
ON OFF
FREQUENCY
20 21 22 24 25 26
29
Introduction Front Panel Set Up Operating Modes Protection SpecificationsRear Panel
18
UNiKA UA-3000/UA-4000/UA-5000
INPUTS - The UA series allows you to use two types each of input connectors to the UA-3000, UA-4000 and UA-5000 respectively.
XLR INPUT TERMINAL (Figure 5)
A XLR female jack is used to connect the output signal from a mixer, cross-over or EQ to Your UA series amplifiers. A balanced connection is
recommended for cable runs longer than 20ft. When constructing your own XLR cables follow the pin configuration described below for proper
connections.
RCA CONNECTOR (Figure 6) – For UA-3000 only
This is the input terminal of the audio signal, RCA connector is unbalanced specification. For cable runs shorter than 20ft., you may choose the
RCA unbalanced input option. This unbalanced input option may be more convenient for most users due to the abundant supply of prefabricated
cables available at your local audio dealer. Please refer to the following figure-6 for the specifications of the pinout.
EURO BLOCK DIAGRAM (Figure 7) – For UA-4000 & UA-5000 only
Internally connected parallel to the XLR connector.
OUTPUTS -
BINDING POST/BANANA PLUG: Connect your speakers to the binding post outputs on the rear of the amplifier. The speaker wire may be connected
by bare wire (directly connected, usually for permanent connections), banana plug, orspade connector. Connections are made to channel one and
channel two outputs for Stereo Mode or across the red terminals of channel one and channel two for Mono Bridge Mode (UA-4000 & UA-5000 only).
IMPORTANT NOTICE: Although a speaker will operate with the positive and negative leads plugged into either terminal on the amplifier binding post,
be sure to plug the negative lead into the black terminal and positive lead into the red terminal. Ensuring proper polarity will avoid speakers being out
of phase that can cause a loss of bass response.
XLR Input Terminal
Figure 5
Ground
RCA Male Connector
Signal
Figure 6
Euro Block Diagram
Figure 7
page 6
SET UP
CH 2 CH 1
INPUT
BalanceBalance
2 Hot (+) 1 Ground
3 Cold
CH4 & CH3
CH 4 CH 3
INPUT
PARALLEL
BRIDGE
_ _
+ +
Cold
Hot
Ground
Introduction Front Panel Rear Panel Operating Modes Protection SpecificationsSet Up
UNiKA UA-3000/UA-4000/UA-5000
BANANA PLUG: (Figure 8)
When connecting your speakers to the amplifier using banana plug, be sure that the red and black caps on
the binding post are completely screwed in. Insert the banana plug into the caps of the binding post, be sure
that the banana plug is inserted securely to avoid the risk of popping out.
BARE WIRE CONNECTION: (Figure 9)
When connecting your speakers to the amplifier using bare wire, unscrew the red and black caps on the
bindingpost, be sure not to completely remove or unscrew the red and black caps. Strip back the wire
insulation ½” (13mm). Insert the bare wire into the hole that was revealed by unscrewing the binding post
cap. After inserting the wire into the binding post hole, screw the binding post cap down on the wire. To
reduce the risk of shock or damage to your amplifier, be sure that the wire connected to one binding post
does not come in contact with that of another.
SPADE CONNECTOR: (Figure 10)
When connecting your speakers to the amplifier using spade connector, unscrew the red and black caps on
thebinding post, be sure not to completely remove or unscrew the red and black caps. Insert the spade
connector intothe binding post and tighten the caps down on the spade connector. To reduce the risk of shock
or damage to your amplifier, be sure that the wire connected to one binding post does not come in contact
with that of another.
MONO BRIDGE CONNECTIONS: (Figure 11)
Mono bridge operation connections will follow the above descriptions, however, when operating in mono
bridgeoperation the speaker connections will run between the two positive (red) leads. Use channel two (or
channel four) positive output terminal for the speaker's negative connection and the channel one (or channel
three) positive output terminal for the speaker's positive connection.
UA-3000 power amplifier does not have Mono Bridge operation mode.
Typical speaker output using bare wire.
Insert bare wire into the binding post and tighten.
Typical speaker output using spade connectors.
Insert bare wire into the binding post and tighten.
Figure 10
page 7
1/5"
13mm
Figure 9
Figure 8
Figure 11
CH4 & CH3
CH 4 CH 3
INPUT
PARALLEL
BRIDGE
CH-3
_
+
CH-4
_
+
+
_
BRIDGE
MONO
4 CHANNEL INPUT BALANCE
CAUTION
2 OHMS MINIMUM IMPEDANCE PER CHANNEL
4 OHMS MINIMUM IMPEDANCE IN MONO BRIDGE MODE
200Hz20Hz
_ _
+ +
CH1 & CH2
CH3 INPUT
SUB WOOFER
FREQUENCY
Introduction Front Panel Rear Panel Operating Modes Protection SpecificationsSet Up
UNiKA UA-3000/UA-4000/UA-5000
OPERATING MODES
STEREO OPERATION : Connect your inputs into channel one and channel two (also channels three and four for the UA-4000 & UA-5000) of the amplifier.
Connect your speakers to the outputs on the rear of the amplifier. Be sure that your front gain controls are turned down to their lowest level (fully
counterclockwise). Turn your amplifier on. Turn your input source level up. Use your front gain controls to regulate the output volume. Be sure not to raise the
volume to the clip level, however an intermittent clip signal is acceptable.
MONO BRIDGE OPERATION (UA-4000 & UA-5000 only): Be sure your amplifier and all other audio equipment are powered down. Press the
Bridge button. Connect input signals to channel one and three. Connect your speaker across the red output binding post on the rear of your amplifier. Turn your
equipment on (your amplifier should always be the last item you turn on). Apply an input source signal to your amplifier. Use the channel one and three gain to
regulate your amplifier output.
PARALLEL MONO (UA-4000 & UA-5000 only): Parallel ties the two channel line inputs together, so that they will both be driven by the same signal,
without the need for external jumpers or wiring. Four amplifier channels will operate independently. Though they carry the same signal, their gain controls affect
only their respective channels, and they both must use their respected speaker outputs. Never attempt to parallel the speaker outputs, this may cause serious
damage to your amplifier! To run in parallel mono mode connect your system as you would if you were going to run in stereo mode. Then press the Parallel
button. Be sure the amplifier is off or the power is disconnected before making any changes.
SUBWOOFER MODE: This mode sends low frequencies to your speakers without the use of an external cross-over. The subwoofer operation can be
operated in mono only. Set the subwoofer mode switch to the “ON” position. Use the frequency selector to adjust the subwoofer output frequency from 20Hz to
200Hz.
page 8
Figure 12 CH-3 Work as Subwoofer Mode; CH-1/2 Stereo Mode
STEREO FULL RANGE SPEAKERS
MONO SUBWOOFER SPEAKER
SPEAKER IMPEDANCE MINIMUM 2 OHM
UA-3000 Rear Panel
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
200Hz20Hz
SUB WOOFER
FREQUENCY
CH 2 CH 1
LIFT
GROUND
CH-1CH-2
~120VAC 60Hz
1500 WATTS
CH-3
AC INPUT
BREAKER
RESET
INPUT
BalanceBalanceBalance
CH 3 Ext Input CH 3
SUB ON
BYPASS
EXT INPU T
CH 1 & CH 2
INPUT
SELECT
6
A
M
P
SPEAKER IMPEDANCE MINIMUM 2 OHM
Introduction Front Panel Rear Panel Set Up Protection SpecificationsOperating Modes
UNiKA UA-3000/UA-4000/UA-5000
page 9
Figure 13 3 Channel Full Range Operating Mode
UA-3000 Rear Panel
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
200Hz20Hz
SUB WOOFER
FREQUENCY
CH 2 CH 1
LIFT
GROUND
CH-1CH-2
~120VAC 60Hz
1500 WATTS
CH-3
AC INPUT
BREAKER
RESET
INPUT
BalanceBalanceBalance
CH 3 Ext Input CH 3
SUB ON
BYPASS
EXT INPU T
CH 1 & CH 2
INPUT
SELECT
6
A
M
P
SPEAKER IMPEDANCE MINIMUM 2 OHM
STEREO FULL RANGE SPEAKERS
SPEAKER IMPEDANCE MINIMUM 2 OHM
STEREO FULL RANGE SPEAKERS
SPEAKER IMPEDANCE MINIMUM 2 OHMSPEAKER IMPEDANCE MINIMUM 2 OHM
15
A
M
P
CH4 & CH3 CH2 & CH1
CH 4 CH 3
INPUT
PARALLEL
INPUT
PARALLEL
BRIDGE BRIDGE
CH 1CH 2
CH-3
_
+
CH-4
_
+
+ +
__
BRIDGE
MONO
BRIDGE
MONO
CH-1
_
+
CH-2
_
+
AC IN
BREAKER
RESET
GROUND
LIFT
_ _
+ +
4 CHANNEL INPUT BALANCE
CAUTION
2 OHMS MINIMUM IMPEDANCE PER CHANNEL
4 OHMS MINIMUM IMPEDANCE IN MONO BRIDGE MODE
200Hz20Hz
_ _
+ +
~120VAC 60Hz
1500 WATTS
CH1 & CH2
CH3 INPUT
SUB WOOFER
ON OFF
FREQUENCY
Figure 14 Mono Bridge Mode Connection
MONO SUBWOOFER SPEAKER
SPEAKER IMPEDANCE MINIMUM 4 OHM
Set to Bridge
Negative (-) Lead
Positive (+) Lead
UA-4000 Rear Panel
Set to Bridge
MONO SUBWOOFER SPEAKER
SPEAKER IMPEDANCE MINIMUM 4 OHM
Negative (-) Lead
Positive (+) Lead
Introduction Front Panel Rear Panel Set Up Protection SpecificationsOperating Modes
UNiKA UA-3000/UA-4000/UA-5000
page 10
15
A
M
P
CH4 & CH3 CH2 & CH1
CH 4 CH 3
INPUT
PARALLEL
INPUT
PARALLEL
BRIDGE BRIDGE
CH 1CH 2
CH-3
_
+
CH-4
_
+
+ +
__
BRIDGE
MONO
BRIDGE
MONO
CH-1
_
+
CH-2
_
+
AC IN
BREAKER
RESET
GROUND
LIFT
_ _
+ +
4 CHANNEL INPUT BALANCE
CAUTION
2 OHMS MINIMUM IMPEDANCE PER CHANNEL
4 OHMS MINIMUM IMPEDANCE IN MONO BRIDGE MODE
200Hz20Hz
_ _
+ +
~120VAC 60Hz
1500 WATTS
CH1 & CH2
CH3 INPUT
SUB WOOFER
ON OFF
FREQUENCY
UA-4000 Rear Panel
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
STEREO MODE FULL RANGE CONNECTION
SPEAKER IMPEDANCE MINIMUM 2 OHM
Set to Bridge
MONO BRIDGE MODE CONNECTION
SPEAKER IMPEDANCE MINIMUM 4 OHM
(Can be Set as A Subwoofer Channel)
15
A
M
P
CH4 & CH3 CH2 & CH1
CH 4 CH 3
INPUT
PARALLEL
INPUT
PARALLEL
BRIDGE BRIDGE
CH 1CH 2
CH-3
_
+
CH-4
_
+
+ +
__
BRIDGE
MONO
BRIDGE
MONO
CH-1
_
+
CH-2
_
+
AC IN
BREAKER
RESET
GROUND
LIFT
_ _
+ +
4 CHANNEL INPUT BALANCE
CAUTION
2 OHMS MINIMUM IMPEDANCE PER CHANNEL
4 OHMS MINIMUM IMPEDANCE IN MONO BRIDGE MODE
200Hz20Hz
_ _
+ +
~120VAC 60Hz
1500 WATTS
CH1 & CH2
CH3 INPUT
SUB WOOFER
ON OFF
FREQUENCY
STEREO MODE FULL RANGE CONNECTION
PARALLEL MODE FULL RANGE CONNECTION
SPEAKER IMPEDANCE MINIMUM 2 OHM
UA-4000 Rear Panel
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
SPEAKER IMPEDANCE MINIMUM 2 OHM
Set to Parallel
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
Figure 15
Figure 16
Introduction Front Panel Rear Panel Set Up Protection SpecificationsOperating Modes
UNiKA UA-3000/UA-4000/UA-5000
PROTECTION
1. Switch ON Mute Protection
The mute circuit is used at the inputs when the unit switched ON, output of between a few seconds the amplifier will be muted. This is done so that turn-on/ off
noises from mixers and other gear is blocked in case the entire system is powered up at once.
page 11
2. Short Circuit Protection
The UA series comes with built-in Output Short Circuit Protects. The Output Short Circuit Protection protects the output
devices of the amplifier from short circuits and stressful loads. If your speaker lines shorted, the amplifier automatically
detects this problem and discontinued operation for that channel. If one side of your amplifier becomes shorted and goes
into protect mode, the other side will continue to operate normally. Channel output during the “Short Circuit Protection" will
be interrupted (i.e. no sound output). Short Circuit Protection can usually be traced back to the signal output line (i.e.
speaker line). Check the line from the output terminal of the amplifier to the speaker. If this line is good, check the internal
speaker connections and components. A short circuit will usually be traced to a bad cable or a bad speaker component
and is rarely traced to the amplifier itself.
3. Overheating Protection
The UA series amplifiers are cooled by Dual 2-speed fans, and always are kept at moderate temperature. During low level output the fans run at normal
speeds. During high output and as heat raises, (exceeding 50°C.), the fans will run at higher speeds to aid the cooling process. If the heatsink temperature
exceeds 91°C., the amplifier will mute until the amplifier cools down. When the amplifier cools below 90°C., the amplifier will return to normal operations. Be
sure not to operate your amplifier below the minimum load ratings to reduce the risk of overheating problems.
4. DC Circuit Protection
If dangerous subsonic frequencies or direct current (DC) is detected in the amplifier's output, the unit will activate its DC/low-frequency
protection circuitry and the amplifier will be muted.This protects the loads and prevents oscillations. The unit will resume normal operation while
the amplifier no longer detects dangerous low-frequency or DC output.
Introduction Front Panel Rear Panel Set Up Operating Modes SpecificationsProtection
UNiKA UA-3000/UA-4000/UA-5000
page 12
UA-SERIES AMPLIFIER SPECIFICATIONS
Introduction Front Panel Rear Panel Set Up Operating Modes Protection Specifications
R.M.S. Output Power
4ohms/8ohms 1KHz 1% THD
R.M.S. Output Power Bridged Mono
8ohms 1KHz 1% THD
Input Sensitivity
Frequency Response (20Hz~20KHz)
Total Harmonic Distortion
Crosstalk @ 1KHz
Damping Factor
Output Circuitry
Cooling System
Dimensions (H×W×D)
Weight
Rack Space
Power Consumption
@ Maximum Output Power 8ohms
Signal To Noise Ratio
below rated power 20Hz to 20kHz,
A-Weighted
UA - 3000
4ohms 340W
8ohms 200W
X
CH1/2
CH3
700W
400W
1V
±0.2dB
<0.02%
>65dB
>250
1015W
9.22A@110V
CLASS AB
Dual 2-speed fans and heatsinks
88 x 483 x 405 mm
16.8kg
2U
>90dB
3 Ch Driven
UA - 4000
680W
4ohms 340W
8ohms 200W
1V
±0.2dB
<0.02%
>65dB
>240
1016W
9.23A@110V
CLASS AB
Dual 2-speed fans and heatsinks
88 x 483 x 405 mm
17kg
2U
>95dB
4 Ch Driven
UNiKA UA-3000/UA-4000/UA-5000
UA - 5000
1000W
4ohms 500W
8ohms 30
0
W
1V
±0.2dB
<0.02%
>65dB
>240
1100W
10A@110V
CLASS AB
Dual 2-speed fans and heatsinks
88 x 483 x 434 mm
22kg
2U
>95dB
4 Ch Driven
Professional Power Amplif iers
UNiKA
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Unika UA-3000 Owner's manual
- Category
- Subwoofers
- Type
- Owner's manual
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