UNiK A

Professional Power Amplifi ers

UNiKA

PROFESSIONAL PRODUCTS

SIGNAL 20dB

CH-1

0 10

LIMITER

ON

PARALLEL STEREO BRIDGE

ON

ON

LIMITER PROT CLIP 10dB

OFF

0 10

CH-2

GX-3000

UNiKA

PROFESSIONAL PRODUCTS

SIGNAL

CH-1

10dB 5dB CLIP PROTECT

LIMITER

ON

PARALLEL STEREO BRIDGE

POWER

ON

PROTECT CLIP 5dB 10dB 20dB SIGNAL

ON

LIMITER

CH-2

0 10

OFF

PROFESSIONAL POWER AMPLIFIER

0 10

GX-4000

UNiKA

PROFESSIONAL PRODUCTS

SIGNAL

CH-1

10dB 5dB CLIP PROTECT

LIMITER

ON

PARALLEL STEREO BRIDGE

POWER

ON

PROTECT CLIP 5dB 10dB 20dB SIGNAL

ON

LIMITER

CH-2

0 10

OFF

PROFESSIONAL POWER AMPLIFIER

0 10

GX-5000

UNiKA

PROFESSIONAL PRODUCTS

SIGNAL

CH-1

10dB 5dB

ON

LIMITER

CLIP PROTECT PARALLEL STEREO BRIDGE

POWER

ON

PROTECT CLIP 5dB

ON

10dB 20dB SIGNAL

LIMITER

CH-2

0 10

OFF

PROFESSIONAL POWER AMPLIFIER

0 10

GX-7000

Index

02 Introduction

03 Front Panel

05 Rear Panel

07 Set Up

09 Speakon Assembly

10 Operating Modes

15 Protection

16 Features

17 Specifications

User Instructions

This booklet contains important information concerning the proper and safe operation of your new amplifier..

GX-Series

GX-3000 / GX-4000 / GX-5000 / GX-7000

Made in Taiwan

IMPORTANT SAFETY INSTRUCTIONS GX-3000/GX-4000/GX-5000/GX-7000

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.

This symbol is intended to alert the user of

!

the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

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.

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.

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.

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.

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.

!

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.

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.

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.

!

Dieses Symobl soll den Benutzer auf wichtige

Instruktionen in der Bedienungsanleitung aufmerksam machen, die Handhabung und

Wartung des Produkts betreffen.

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. page 1

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.

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction

Front Panel Rear Panels Set Up Speakon Assembly Operating Modes Protection Features Specifications

IMPORTANT PRECAUTIONS

 To reduce the risk of electrical shock or fire, do not expose this unit to rain or moisture.

 Do not spill water or other liquids into or onto 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 main 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 into 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 main 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.

INTRODUCTION

Congratulations and thank you for purchasing GX-3000 / GX-4000 /

GX-5000 / GX-7000 amplifier. 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 GX-3000 / GX-4000 / GX-5000 / GX-7000 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. page 2

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction

Front Panel

Rear Panels Set Up Speakon Assembly Operating Modes Protection Features Specifications

GX-3000 FRONT PANEL

1 2 3 4 5 6 7 8 9 10 1 1

UNiK A

PROFESSIONAL PRODUCTS

SIGNAL 20dB 10dB CLIP PROT LIMITER

ON

PARALLEL STEREO BRIDGE

ON

CH-1

OFF

0 10

ON

LIMITER PROT CLIP 10dB 20dB SIGNAL

0 10

CH-2

GX-3000

12 13

1. Racking Mounting Ears - Two front panel mounting holes are provided on each mounting ear.

2. UNiKA Logo and Model No - GX series have 1 type of 2U model

GX-3000 and 3 types of 3U models GX-4000 / GX-5000 / GX-7000.

3. Channel 1 Signal Indicators - These green and yellow LEDs will glow according to the average signal output.

4. Channel 1 Clip Indicator - This red 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.

14

Figure 1

15

5. Channel 1 Protect Indicator - The red Protect LED will begin to glow when the channel goes into protect mode. When the channel goes into protect mode all output for that channel will turn off. This is to protect any speakers connected to the channel.

6. Channel 1 Limiter Switch - This is used to activate the channel's built in limiter. The limiter reduces the average input level when the signal begins to distort, this process is designed to reduce distortion and protect the speakers. See limiter at page 15.

7. Function Indicators - These indicators detail the operating mode of the amplifier. These LEDs will also function as a power indicator.

8. Channel 2 Limiter Switch - This is used to activate the channel's built in limiter. The limiter reduces the average input level when the signal begins to distort, this process is designed to reduce distortion and protect the speakers. See limiter at page 15.

page 3

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction

Front Panel

Rear Panels Set Up Speakon Assembly Operating Modes Protection Features Specifications

GX-4000 / GX-5000 / GX-7000 FRONT PANEL

1 2 3 4 5 6 7 8 9 10 1 1

UNiK A

PROFESSIONAL PRODUCTS

SIGNAL 20dB 10dB 5dB

LIMITER

ON

CLIP PROTECT

CH-1

PARALLEL STEREO BRIDGE

POWER

ON

PROTECT CLIP 5dB 10dB 20dB SIGNAL

ON

LIMITER

CH-2

0 10

OFF

PROFESSIONAL POWER AMPLIFIER

0 10

GX-4000

12 13

9. Channel 2 Protect Indicator - The red Protect LED will begin to glow when the channel goes into protect mode. When the channel goes into protect mode all output for that channel will turn off. This is to protect any speakers connected to the channel.

10. Channel 2 Clip Indicator - This red 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.

11. Channel 2 Signal Indicators - These green and yellow LEDs will glow according to the average signal output.

14

Figure 2

15

12. Fan Inlet Grills and Filter - GX Series amplifiers are cooled by two rear mounted fans. Cool air from front grills is filtered and flows over the heatsinks and exhausts to back side. Make sure these outlets remain clear to allow unrestricted air flow.

13. Channel 1 Gain Control - This rotary knob is used to control the output signal of channel one. Turning the knob in clockwise direction will increase signal output.

14. AC Power Switch - This switch is used to control the unit mains power.

15. Channel 2 Gain Control - This rotary knob is used to control the output signal of channel two. Turning the knob in clockwise direction will increase signal output.

page 4

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel

Rear Panels

Set Up Speakon Assembly Operating Modes Protection Features Specifications

GX-3000 REAR PANEL

16 30 23 18 21 25 24 26

INPUT

GAIN

THRU

CH-2

INPUT

0.775V

1V 1.44V

CAUTION

MINIMUM LOAD IMPEDANCE

2 OHM PER CHANNEL

4 OHM BRIDGE

CH- 2

1+ 1-

POS NEG

Serial No.:

O

C

K

C H-2

O

C

K

BRIDGE

1+ 1-

POS NEG

INPUT

CH-1

THRU

O

C

K

C H-1

MODE

BRIDGE STEREO PARALLEL

~220VAC 50Hz

CH- 1

1+ 1-

POS NEG

GROUND

LIFT

Made in Taiwan

PUSH TO RESET

2 7

16. 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.

17. Channel 2 Subwoofer Mode On/Off Switch - Turns the subwoofer mode for channel two on and off.

18. Channel 2 XLR Input Connector - This is the input terminal of the audio signal that can be connected to the balanced XLR input connector.

XLR pin setting: Pin-2/signal positive, Pin-3/signal negative, Pin-1/ground.

19. Channel 2 Frequency Adj. - This pot adjust the frequency level sent to your speaker on channel two when using your amplifier in subwoofer mode.

20. Channel 1 Frequency Adj. - This pot adjust the frequency level sent to your speaker on channel one when using your amplifier in subwoofer mode.

2 8

Figure 3

29 33 34

21. Channel 1 XLR Input Connector - This is the input terminal of the audio signal that can be connected to the balanced XLR input connector.

XLR pin setting: Pin-2/signal positive, Pin-3/signal negative, Pin-1/ground.

22. Channel 1 Subwoofer Mode On/Off Switch - Turns the subwoofer mode for channel one on and off.

23. Channel 2 XLR THRU Jack - This Jack is used to send a parallel signal from the channel two input jack to another device or amplifier.

24. Mode Selection Switch - This recessed, three-position switch configures the amplifier for Bridge, Stereo, Parallel Mode operation. Amplifiers are factory-configured for Stereo Mode. See section on Mode Selection for more information

25. Channel 1 XLR THRU Jack - This Jack is used to send a parallel signal from the channel one input jack to another device or amplifier.

page 5

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel

Rear Panels

Set Up Speakon Assembly Operating Modes Protection Features Specifications

GX-4000 / GX-5000 / GX-7000 REAR PANEL

16 17 1 8 1 9 20 21 22 23 2 4 2 5 26

NORMAL

FREQUENCY FREQUENCY

SUB

WOOF

20 Hz

CH-2

200 Hz 20 Hz

CH-1

SUB

WOOF

200 Hz

NORMAL

BRIDGE

STEREO

PARALLEL

CH-2 CH-1

PUSH TO RESET

Made in Taiwan

INPUT BALANCE

PINOUT

CH- 2

1+ 1-

POS NEG

OUTPUTS

CH-2

CH- 1

1+ 1-

POS NEG

PINOUT

CH- 2 BRIDGE

2+ 2-

POS NEG

1+ 2+

POS NEG

CH-1

_

GAIN

0.775V

32dB 26dB

CH-2 _

INPUT THRU

BRIDGE

MONO

CH-1

+

+ +

_

Serial No.:

2 7 2 9

26. Reset Button - This button is designed to protect the amplifier and your speakers in the event of an AC overload. In the event of an electrical overload, the circuit breaker will pop-out. Push it in to reset the breaker, if the breaker continues to pop, stop using the amplifier and contact customer service.

30 31

Figure 4

32 34

31. Channel 2 Output Jack / 5-way Binding Post - Connect to your speakers input jack. Red is positive signal and Black is negative signal.

32. Channel 1 Output Jack / 5-way Binding Post - Connect to your speakers input jack. Red is positive signal and Black is negative signal.

27. Channel 2 Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your speaker's Speakon input jack.

28. Bridged Speakon Output (GX-3000 only) - Use pins 1+ and 1- of this

4-pole Speakon connector to connect to your speaker's Speakon input jack.

33. Ground Lift Switch (GX-3000 only) - This switch is used to disconnect the internal ground signal from the amplifier's chassis ground. This may reduce the buzz that is caused from an electrical 50Hz/60Hz cycle.

29. Channel 1 Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your speaker's Speakon input jack.

34. AC Power Cord - Plug this cable into a standard 110V-220V wall outlet. Be sure that the supplied voltage in your area matches the amplifiers required voltage. Never plug your amplifier into a wall outlet that does not match the required voltage of your amplifier, serious damage may occur to your unit.

30. Input Gain - This sensitivity selector sets the input level for rated power output, 0.775V, 1V, 1.44V (GX-3000) and 0.775V, 26dB, 32dB (GX-4000 /

5000 / 7000).

page 6

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels

Set Up

Speakon Assembly Operating Modes Protection Features Specifications

SET UP

INPUTS -

The GX Series amplifiers allow you to use balanced XLR input connector per channel. Use this connection to connect the output signal from a mixer, cross-over or EQ to the GX 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. You may use the two XLR “Input Thru” jacks to jump a parallel connection to another amplifier or other device. For example: Connect a XLR cable to the input of channel one. You may now connect a XLR cable from the channel one “Input Thru” jack to the input jack of another amplifier's channel one input. This will reduce the use of “Y” cables.

Male XLR Pin Configuration

2 1

3

2 Hot (+data) 1 Ground / Return / 0v

3 Negative (-data)

Figure 5

OUTPUTS -

BINDING POST/BANANA PLUG (GX-4000 / GX-5000 / GX-7000 only): 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, or spade 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.

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.

BANANA PLUGS: (Figure 6) 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.

Figure 6 page 7

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels

Set Up

Speakon Assembly Operating Modes Protection Features Specifications

BARE WIRE CONNECTIONS: (Figure 7)

When connecting your speakers to the amplifier using bare wire, unscrew the red and black caps on the binding post, 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 reveled 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 8)

When connecting your speakers to the amplifier using spade connector, unscrew the red and black caps on the binding post, be sure not to completely remove or unscrew the red and black caps. Insert the spade connector into the 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 9)

Mono bridge operation connections will follow the above descriptions, however, when operating in mono bridge operation the speaker connections will run between the two positive (red) leads. Use channel two positive output terminal for the negative connection and the channel one positive output terminal for the positive connection.

1/2"

13mm

Figure 7

Typical speaker output using bare wire.

Insert bare wire into the binding post and tighten.

Figure 8

Typical speaker output using spade connectors.

Insert bare wire into the binding post and tighten.

STEREO CONNECTIONS USING THE NEUTRIK SPEAKON OUTPUT CONNECTORS:

Recent regulatory requirements in Europe have outlawed the use of the dual banana plug and force amp users to terminate their speaker cables with spade lugs or bare wire ends. This is not advantageous to most users that want to reconfigure their systems or quickly change out an amp. The Neutrik Speakon connector provides the most convenient solution to this problem, eliminating the need for spade lugs or bare wire end cables. Major speaker manufacturers have been using Speakon connectors on their products for years, so chances you are ready to use the Speakon connection. With Speakon connectors, you can connect straight from the amp to the speaker. The

Speakon connector used on this amplifier meets all known safety regulations. Once wired correctly, the connector cannot be plugged in backwards, causing the type of inverted polarity situations that have become common with banana hookups. This connection will provide a safe, secure and reliable method of connecting your speakers to your new amplifier. You can purchase the Speakon NL4FC connectors from your local audio dealer.

CH-2

200 Hz 20 Hz

CH-1

200 Hz

CH-2 CH-1

GAIN

INPUT BALANCE

CH- 1

1+ 1-

PINOUT

CH- 2

2+ 2-

BRIDGE

1+ 2+

POS NEG POS NEG POS NEG

CH-1

_

0.775V

32dB 26dB

CH-2 _

INPUT THRU

BRIDGE

MONO

CH-1

+

+ +

_

Serial No.:

Figure 9 page 8

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up

Speakon Assembly

Operating Modes Protection Features Specifications

SPEAKON ASSEMBLY:

You will need a pair of Neutrik Speakon NL4FC connectors. You will also need high-quality two or four conductor Speakon cable, a pair of needle-nosed pliers and a 1.5-mm Allen key to assemble the Speakon connectors to your speaker wire. To assemble the Neutrik

Speakon NL4FC connector, complete the following steps:

Brass Inserts 4Conductor Speaker Cable

Figure 10

1. Strip back 3/4-inch of the cable casing. Strip off 1/4-inch from the end of each of the conductors down to bare wire, and insert the brass fittings (Figure 10).

2. Slide the wire tensioner (D) and the Speakon coupler (E) through the cable end. See

Figure 11.

3. Insert each wire with the brass fittings into the top of appropriate slot of the connector insert (B) as shown in Figure 12. Use a 1.5-mm Allen key to tighten the connection

(Figure 13).

4. Be sure to properly match the positive (+) and negative (-) leads of each wire (Figure 14).

5. Slide the connector insert (B) into the connector housing (A), making sure that the large notch on the outer edge of the insert lines up with the large groove on the inside of the connector housing. The insert should slide easily through the housing and out the other side until it extends approximately 3/4-inch from the end of the housing.

6. Slide the cable tensioner (D) along the cable and insert into the housing (A), making sure that the large notch lines up with the large groove on the inside of the connector housing

(A). The cable tensioner (D) should slide easily into the housing until only 3/8-inch of the tensioner (D) extends from the back end of the connector.

7. Slide the coupler (E) along the cable and screw it onto the end of the housing (A). Before tightening, you may want to test the connector to make sure it has been assembled properly.

A

+

+1

-1

B

-2

C

Figure 11

D

Figure 12

Figure 13

INPUT BALANCE

+1

-2

+

+2

+2 -1

E

Figure 14 page 9

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up Speakon Assembly

Operating Modes

Protection Features Specifications

OPERATING MODES

STEREO OPERATION :

Page 10/ Figure 15 details an example of a typical stereo set-up. Connect your inputs into channels one and two 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 counter-clockwise). 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 :

Page 11/ Figure 16 & 17 detail two mono bridge set-up. Be sure your amplifier and all other audio equipment are powered down. Flip the Parallel/Stereo/Mono Bridge switch to the Mono Bridge position. Connect an input signal to channel one. 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 gain control to regulate your amplifier output.

PARALLEL MONO:

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. Both 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! This mode is recommended when using the GX-3000/GX-4000/GX-5000/GX-7000 to run bass speakers, to achieve better low end. To run in parallel mono mode connect your system as you would if you were going to run in stereo mode. Then flip the mode switch to Parallel. Be sure the amplifier is off or the power is disconnected before making any changes.

GX-7000 Rear Panel

CH-2

Input

CH-1

Input

GX-7000 only(110V)

NORMAL

FREQUENCY FREQUENCY

SUB

WOOF

20 Hz

CH-2

200 Hz 20 Hz

SUB

WOOF

200 Hz

CH-1

BRIDGE

STEREO

PARALLEL

NORMAL

CH-2 CH-1

PUSH TO RESET

Made in Taiwan

GAIN

0.775V

32dB 26dB

INPUT BALANCE

PINOUT

CH- 2

1+ 1-

POS NEG

OUTPUTS

CH-2

CH- 1

PINOUT

CH- 2 BRIDGE

1+ 1-

POS NEG

2+ 2-

POS NEG

1+ 2+

POS NEG

CH-1

_

CH-2 _

BRIDGE

MONO

+

INPUT THRU

_

+

~120VAC 60Hz

5600 WATTS

Made in Taiwan

BRIDGE

STEREO

PARALLEL

SPEAKERS

2 OHM MINIMUM

SPEAKERS

2 OHM MINIMUM Figure 15 TYPICAL STEREO OUTPUT CONNECTIONS page 10

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up Speakon Assembly

Operating Modes

Protection Features Specifications

MODE

GX-3000 Rear Panel CH-1 Input Only

BRIDGE STEREO PARALLEL

INPUT

GAIN

THRU

CH-2

INPUT

0.775V

1V 1.44V

CAUTION

MINIMUM LOAD IMPEDANCE

2 OHM PER CHANNEL

4 OHM BRIDGE

CH- 2

1+ 1-

POS NEG

Serial No.:

O

C

K

C H-2

O

C

K

BRIDGE

1+ 1-

POS NEG

INPUT

CH-1

THRU

O

C

K

C H-1

MODE

BRIDGE STEREO PARALLEL

~220VAC 50Hz

CH- 1

1+ 1-

POS NEG

GROUND

LIFT

Made in Taiwan

PUSH TO RESET

Figure 16 TYPICAL MONO BRIDGE SET-UP

GX-7000 Rear Panel

CH-1 Input

Only

GX-7000 only(110V)

NORMAL

FREQUENCY FREQUENCY

SUB

WOOF

20 Hz

CH-2

200 Hz 20 Hz

CH-1

SUB

WOOF

200 Hz

BRIDGE

STEREO

PARALLEL

NORMAL

CH-2 CH-1

PUSH TO RESET

Made in Taiwan

INPUT BALANCE

PINOUT

CH- 2

1+ 1-

POS NEG

OUTPUTS

CH-2

CH- 1

PINOUT

CH- 2 BRIDGE

1+ 1-

POS NEG

2+ 2-

POS NEG

1+ 2+

POS NEG

CH-1

GAIN

_

0.775V

32dB 26dB

CH-2 _

INPUT THRU

BRIDGE

MONO

+

+ +

~120VAC 60Hz

5600 WATTS

_

Made in Taiwan

BRIDGE

STEREO

PARALLEL

Figure 17 TYPICAL MONO BRIDGE SET-UP page 11

SPEAKERS

4 OHM MINIMUM

SPEAKERS

4 OHM MINIMUM

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up Speakon Assembly

Operating Modes

Protection Features Specifications

SPEAKERS

2 OHM MINIMUM

GX-7000 Rear Panel

Either CH-1 or CH-2 input, or Both inputs.

CH-2 Input CH-1 Input

GX-7000 only(110V)

NORMAL

FREQUENCY FREQUENCY

SUB

WOOF

20 Hz

CH-2

200 Hz 20 Hz

CH-1

SUB

WOOF

200 Hz

BRIDGE

STEREO

PARALLEL

NORMAL

CH-2 CH-1

PUSH TO RESET

Made in Taiwan

INPUT BALANCE

PINOUT

CH- 2

1+ 1-

POS NEG

OUTPUTS

CH-2

CH- 1

PINOUT

CH- 2 BRIDGE

1+ 1-

POS NEG

2+ 2-

POS NEG

1+ 2+

POS NEG

CH-1

_

GAIN

0.775V

32dB 26dB

CH-2 _

INPUT THRU

BRIDGE

MONO

CH-1

+

+ +

~120VAC 60Hz

5600 WATTS

_

Made in Taiwan

BRIDGE

STEREO

PARALLEL

Figure 18 TYPICAL PARALLEL SET-UP

SPEAKERS

2 OHM MINIMUM page 12

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up Speakon Assembly

Operating Modes

Protection Features Specifications

SUBWOOFER MODE ( GX-4000 / GX-5000 / GX-7000 only ) :

This mode sends low frequencies to your speakers without the use of an external crossover. The subwoofer operation can be operated in stereo, parallel, or bridge mono modes. Change the different operating modes by flipping the mode switch on the rear of the unit to your desired operating mode. Also, set the subwoofer mode switch to the “SUBWOOF” position. Use the frequency selector to adjust the subwoofer output frequency from 20Hz to 200Hz. The different subwoofer modes are listed as follows:

BRIDGE SUBWOOFER - This operation allows you to get the most possible power out of your amplifier for the sole purpose of running a high powered subwoofer loudspeaker in mono. To avoid amplifier overheating, never run the amplifier below 4 ohms in this mode. In this mode you may use the frequency adjustment on the rear

19 details a typical Bridge Subwoofer set-up.

STEREO SUBWOOFER - This operation is similar to the Bridge Subwoofer operation but in stereo. This operation allows you to run several subwoofers down to a minimum of 2 ohms. To avoid amplifier overheating, never run the amplifier below 2 ohms in this mode. Set up this mode as you would a standard Stereo set-up. Be sure both channels are set to “SUBWOOF.” In this mode you may use the frequency adjustment on the rear of the amplifier, to control the bass frequency output level.

20 details a typical Stereo Subwoofer set up.

PARALLEL SUBWOOFER - This operation is similar to the Stereo Subwoofer operation but in Parallel. When running subwoofers, it is usually recommended to run them in mono mode to achieve a cleaner tighter low end. This operation allows you to run several subwoofers down to a minimum of 2 ohms. To avoid amplifier overheating, never run the amplifier below 2 ohms in this mode. Set up this mode as you would a standard Stereo set-up. Be sure both channels are set to “SUBWOOF” and the mode switch is set to “Parallel.” In this mode you may use the frequency adjustment on the rear of the amplifier, to control the bass frequency output level.

Frequencies may be adjusted from 20Hz to 200Hz.

ONE CHANNEL NORMAL / ONE CHANNEL SUBWOOFER (BI-AMP) You may also use your amplifier to bi-amp your system. You may use one side of the amplifier to power a subwoofer and the other side to power a full range speaker. Follow the set up guides listed above to mix and match your operations.

GX-7000

Rear Panel

Do Not Use

CH-2 Input

CH-1 Input

Set to

Subwoof

GX-7000 only(110V)

NORMAL

FREQUENCY FREQUENCY

SUB

WOOF

20 Hz

CH-2

200 Hz

SUB

WOOF

20 Hz 200 Hz

CH-1

NORMAL

BRIDGE

STEREO

PARALLEL

CH-2 CH-1

PUSH TO RESET

GAIN

Made in Taiwan

INPUT BALANCE

PINOUT

CH- 2

1+ 1-

POS NEG

OUTPUTS

CH-2

CH- 1

PINOUT

CH- 2 BRIDGE

1+ 1-

POS NEG

2+ 2-

POS NEG

1+ 2+

POS NEG

CH-1

0.775V

32dB 26dB

CH-2 _

INPUT THRU

BRIDGE

MONO

+

+ +

~120VAC 60Hz

5600 WATTS

_ _

Negative (-) Lead

Made in Taiwan

Positive (+) Lead

Figure 19 Bridge Subwoofer Mode Speaker Set-Up

BRIDGE

STEREO

PARALLEL

Use the two red terminal from the Binding Post to power a subwoofer speaker in mono-bridge mode. page 13

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up Speakon Assembly

Operating Modes

Protection Features Specifications

Use either the bare wire or the banana jacks

GX-7000

Rear Panel

CH-2 Input

Set to

Subwoof

CH-1 Input

Set to

Subwoof

GX-7000 only(110V)

NORMAL

FREQUENCY FREQUENCY

SUB

WOOF

20 Hz

CH-2

200 Hz 20 Hz

CH-1

SUB

WOOF

200 Hz

BRIDGE

STEREO

PARALLEL

NORMAL

CH-2 CH-1

PUSH TO RESET

Made in Taiwan

INPUT BALANCE

PINOUT

CH- 2

1+ 1-

POS NEG

OUTPUTS

CH-2

CH- 1

PINOUT

CH- 2 BRIDGE

1+ 1-

POS NEG

2+ 2-

POS NEG

1+ 2+

POS NEG

CH-1

_

GAIN

0.775V

32dB 26dB

CH-2 _

INPUT THRU

BRIDGE

MONO

CH-1

+

+ +

~120VAC 60Hz

5600 WATTS

_

Made in Taiwan

Figure 20 Stereo Subwoofer Mode Speaker Set-Up

BRIDGE

STEREO

PARALLEL

Use either the bare wire or the banana jacks

Use either the bare wire or the banana jacks

GX-7000

Rear Panel

Either CH-1 or CH-2 input, or Both inputs.

Set to

Subwoof

CH-2

Input

CH-1

Input

Set to

Subwoof

GX-7000 only(110V)

NORMAL

FREQUENCY FREQUENCY

SUB

WOOF

20 Hz

CH-2

200 Hz 20 Hz

CH-1

SUB

WOOF

200 Hz

NORMAL

BRIDGE

STEREO

PARALLEL

CH-2 CH-1

PUSH TO RESET

GAIN

Made in Taiwan

INPUT BALANCE

PINOUT

CH- 2

1+ 1-

POS NEG

CH-2

OUTPUTS

CH- 1

PINOUT

CH- 2 BRIDGE

1+ 1-

POS NEG

2+ 2-

POS NEG

1+ 2+

POS NEG

CH-1

0.775V

32dB 26dB

CH-2 _

INPUT THRU

BRIDGE

MONO

CH-1

+

+ +

~120VAC 60Hz

5600 WATTS

_ _

Made in Taiwan

BRIDGE

STEREO

PARALLEL

Figure 21 Parallel Subwoofer Mode Speaker Set-Up page 14

Use either the bare wire or the banana jacks

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up Speakon Assembly Operating Modes

Protection

Features Specifications

PROTECTION

LIMITER -

The GX Series amplifiers comes with a built in limiter. When the input signal overloads, the “CLIP LED” indicates a signal overload, at this time, the volume should be lowered to reduce distortion. If the input gain level is not reduced the built-in limiter will activate. During signal overload, the limiter will reduce the input audio signal enough to minimize the amount of clipping. A limiter takes the gain of an overloading signal and reduces it, the reduction in gain reduces distortion that can cause damage to your speakers and amplifier. During normal operation below clipping, and momentary clips on peaks, the limiter does not affect the audio signal and is inaudible. It will allow brief clipping of peaks and will only activate when continuous hard clipping occurs. During excessive clipping the limiter will reduce the audio signal enough to minimize the amount of clipping. When the input signal decreases enough that clipping ends, the limiter will deactivate and cease its gain reduction. The limiter has a fixed threshold and can not be adjusted.

SAFE POWER LEVELS AT DIFFERENT OUTPUT LOADS:

8-Ohm Loads : The amplifier can operate at its rated power level without risk of overheating. However, it may caused excessive temperature if it is pushed hard enough to continually light the “CLIP ” indicator, the amplifier’s average output power can reach its maximum peak.

4-Ohm Loads : If the “CLIP ” indicator flashes occasionally, the amplifier is approaching its Maximum long-term power capacity. If it is lit about half the time, the amplifier channel will probably go into thermal protection within a few minutes.

2-Ohm Loads : Except for an occasional flash, keep the “CLIP ” indicator dark to avoid overheating the amplifier channel. Clipping should be kept to a reasonable minimum. An amplifier’s peak current draw at full output power into 2 ohms is several times what the “normal ” draw is, but its various protection circuits will prevent this condition lasting more than a minute or two.

SHORT CIRCUIT PROTECTION -

The GX Series amplifiers 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 discontinues 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. During short circuit protection, the

"CLIP" LED and “PROTECT" LED will light simultaneously indicating amplifier fault. 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.

Figure 22

THERMAL PROTECTION -

Dual 2-speed fans on the amplifiers GX series provide adequate cooling. 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.

page 15

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up Speakon Assembly Operating Modes

Protection Features

Specifications

INPUT/OUTPUT PROTECTION -

The input circuits are isolated by resistors. An ultrasonic network uncouples RF from the output and helps to keep the amplifier stable with reactive loads.

OPERATING VOLTAGE (AC MAINS) -

On the rear panel will indicate the correct AC mains voltage. Connecting to the wrong voltage is dangerous and may damage the amplifier. Always be sure the source voltage for your areas matches the required voltage for your amplifier.

GAIN CONTROLS -

The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain. It is best to a d j ust the amplifier so no “hissing” is heard from speakers with no music being played, this will ensure the lowest possible distortion d u ring normal operation.

AMPLIFIER FEATURES:

THRU :

THRU will allow the user to daisy-chain one amplifier’s signal input into another amplifier. Plug the signal source outputs into the first amplifier’s input, patch from the amplifier’s THRU jacks to the next amplifier’s input, and so on, daisy-chaining as many amplifiers as there is no excessive level loss.

GROUND LIFT SWITCH (GX-3000 only) :

Applying or lifting the ground switch will change level for background noise and hum, if the noise level remains the same in either position, better to keep the ground lift switch in the ground position. This will eliminate 50Hz/60Hz cycle hum that is sometimes induced when mounting several units in the same rack.

LED INDICATORS :

Each channel has six LEDS (for the GX-3000 only has five LEDs). Four LEDs indicate signal level activity; two green LED and two yellow LED. One red LED indicates signal. One red LED indicates protections mode for shorts / overload.

FUNCTION INDICATORS :

These green/white/green LED indicators detail the amplifiers current operating mode (Parallel, Stereo, or Bridge).

INPUT GAIN SWITCH :

The input gain switch will change the volume or output of an amplifier. In the rear panel of the GX series, you can find the switch to select the desired input gain: for the GX-4000/5000/7000 is 26dB, 32dB or 0.775V selection, and for the GX-3000 is 1.44V, 1V or 0.775V selection. It is set at the factory to 0.775V for rated output into 8 ohms. Before you change the input gain, please turn off the amplifier and disconnect its power cord from the AC mains power receptacle to avoid danger.

page 16

UNiKA GX-3000/GX-4000/GX-5000/GX-7000

Introduction Front Panel Rear Panels Set Up Speakon Assembly Operating Modes Protection Features

Specifications

SPECIFICATIONS

GX 3000 GX 4000 GX 5000 GX 7000

R.M.S. Output Power 2 Ch Driven

2ohms/4ohms/8ohms

1KHz 1% THD

R.M.S. Output Power Bridged Mono

4ohms/8ohms

1KHz 1% THD

Input Sensitivity

Frequency Response (20Hz~20KHz)

Total Harmonic Distortion

Crosstalk @ 1KHz

Damping Factor

Signal To Noise Ratio below rated power 20Hz to 20 K Hz,

A-Weighted

Power Consumption

@ Maximum Output Power 8ohms

Output Circuitry

Cooling System

Dimensions (H×W×D)

Weight

Rack Space

2ohms 1 0 00W

4ohms 7 00W

8ohms 4 20W

2 0 00W/ 14 00W

1.

44 V, 1V , 0 .

775V

±0.2dB

<0.0

1 %

>70dB

> 3 60

> 100dB

99 0W

9 A@ 11 0V

CLASS AB

Dual 2s peed f an s and heatsinks

88 x 483 x 410 mm

17 kg

2 U

2ohms 1200W

4ohms 1000W

8ohms 620W

2400W/2000W

26dB , 32dB , 0 .

775V

±0.2dB

<0.025%

>70dB

>600

> 100dB

1380W

12 .

54 A@ 11

CLASS AB

0V

Dual 2s peed f an s and heatsinks

133 x 483 x 410 mm

25.3kg

3U

2ohms 1600W

4ohms 1400W

8ohms 840W

3200W/2800W

26dB

±0.2dB

<0.02%

>70dB

>550

>

, 32dB

100dB

, 0 .

775V

2ohms 2990W

4ohms 2000W

8ohms 1200W

5980W/4000W

26dB

>400

>

,

±0.2dB

>70dB

32dB

<0.02%

100dB

, 0 .

775V

1920W

17.45A@110V

CLASS H

Dual 2 speed fans and heatsinks

133 x 483 x 410 mm

29.2kg

3U

2680W

24.36A@110V

CLASS H

Dual 2 speed fans and heatsinks

133 x 483 x 4 62 mm

32.5kg

3U page 17

UNiKA GX-3000/GX-4000/GX-5000/GX-7000 page 18

UNiK A

Professional Power Amplifi ers