Unika PS-5000 Owner's manual

Brand: Unika

Model: PS-5000

Type: Owner's manual

This manual is also suitable for

U S E R I N S T R U C T I O N S

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

PS Series

PS-3000/PS-4000/PS-5000

www.unika.com.tw

Professional Power Amplifi ers

UNiKA

PS -3000

Important Precautions

Introduction

 Read all operating instructions before using this equipment.

 To reduce the risk of electrical shock, do not open the unit.

 There is NO USER REPLACEABLE PARTS INSIDE. Please contact the

DynaTech Service Department or your authorized dealer to speak to a

qualified service technician.

 Be sure to allow adequate front and rear ventilation to avoid possible heat

damage to you equipment.

 Be sure that AC power is OFF and all level controls are set to MINIMUM

before making connections. This will eliminate any chance of unexpected,

loud audio transients that could damage your speaker systems.

 Be sure that AC power is OFF when changing modes of operation and when

changing the position of the ground lift switch.

 DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. Operators of

electronic equipment should in no way be in contact with water.

 When connecting to AC power line, be sure you haven't lost the ground

connection by using an adapter or extension cord without a 3 prong plug.

Congratulations on purchasing a UNiKA PS-3000, PS-4000 and PS-5000 Amplifier.

This state of the art power amplifier includes the latest features and is backed by a

three year limited warranty. prior to use, we suggest that you carefully read all the

instructions.

Features

State of the art technology provides exceptional reliability when working with

difficult speakers with up to 2 ohm impedance.

Excellent handling of low frequencies as well as clear mid and flawless highs.

High output power to drive professional loudspeakers without clipping.

Oversized toroidal transformer, filter and heat sinks for better low end,

transparency and stability.

Comprehensive protection circuitry (short, overheat, DC, subsonic and, RF filters,

turn-on delay) with high current speaker protection relays.

Three modes of operation STEREO. PARALLEL MONO. and MONO BRIDGE,

with mode status indication LEDs on front panel.

Flexible input configuration with active balanced inputs, additional input connectors

to chain amps.

True clip LEDs for better control.

Front-to-Rear airflow with 2 speed fan control.

Efficient aluminum extrusion heat sink design for thermal stability and reliability.

Turn-on in-rush current limiting circuitry.

Compact 3U well balanced enclosure.

Steel reinforced chassis construction for durability and longevity.

DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY CONTROLS

OR SWITCHES.

page 1

PS-3000/PS-4000/PS-5000

U S E R I N S T R U C T I O N S

SEAFTY INSTRUCTIONS

UNiKA

Setup...........................................................................................................................................................................................................3

Front Panel..............................................................................................................................................................................................4

Rear Panel...............................................................................................................................................................................................5

Operating Instructions.....................................................................................................................................................................6

Stereo Operation.......................................................................................................................................................................6

Parallel Mono Operation.........................................................................................................................................................7

Mono Bridge Operation..........................................................................................................................................................8

Specifications..................................................................................................................................................................................10

page 2

U S E R I N S T R U C T I O N S

PS-3000/PS-4000/PS-5000

UNiKA

SETUP

Unpack Your Amplifier

Please unpack and inspect your amplifier for any damage that may have

occurred during transit. If damage is found, notify the transportation company

immediately. Only you can initiate a claim for shipping damage. UNiKA will be

happy to help as needed. Save the shipping carton as evidence of damage for

the shipper's inspection.

We also recommend that you save all packing materials so you will have them

if you ever need to transport the unit. Never ship the unit without the factory

pack.

YOU WILL NEED (not supplied) :

Input wiring cables

Output wiring cables

Rack for mounting amplifier (or a stable surface for stacking)

Install Your Amplifier

Use a standard 19-inch (48.3 cm) equipment rack. You may also stack amps

without using a cabinet.

CAUTION：Before you begin, make sure your amplifier is

disconnected from the power source, with power switch in the “off”

position and all level controls turned completely down (counter

clockwise).

page 3

19.0"

48.3cm

5.24"

13.3cm

1.5"

3.8cm

2.24"

5.7cm

18.26"

46.4cm

SIDE VIEW

0.71"

1.8 cm

0.67"

1.7 cm

0.67"

1.7 cm



NOTE : When transporting, amplifiers should be supported at both front and back.

Ensure Proper Cooling

When using an equipment rack, mount units directly on top of each other. Close any

open spaces in rack with blank panels. DO NOT block front or rear air vents. The side

walls of the rack should be a minimum of two inches (5.1 cm) away from the amplifier

sides, and the back of the rack should be a minimum of four inches (10.2 cm) from the

amplifier back panel.

Setup Front Panel Rear Panel Operating Instructions  Stereo Operation  Parallel Mono Operation  Mono Bridge Operation Specifications

U S E R I N S T R U C T I O N S

PS-3000/PS-4000/PS-5000

UNiKA

UNiK A

PS -300 0

page 4

1. Clip LED - The clip LED indicates the exact clipping point, regardless of the mains

voltage and or the connected load. The symmetrical supply voltages of the power

pack of an amplifier limit its output power. If amplifier is overdriven by a too high

input signal, the output signal tries to exceed the value of the supply voltage. At

this moment, the amplifiers “clip”. this results in a dangerous situation for the

connected loudspeakers. The peak limiter, if switched on, intervenes here by

automatically limiting the output signal-this is indicated by the clip led of the

channel in question.

2. Signal LED - The signal LED indicates a -30db point relative to the clipping point,

regardless of the mains voltage and the connected load. This LED gives the user

a better control of the remaining headroom of a channel or a complete system.

3. Power LED - When you have switched on the amplifier, the ON LED indicates the

power is being supplied to the channel. If none of the LED light up once the

appliance has been switched on, this might be due to the following fault: no power

supply from the mains outlet. Please check that the appliance has been plugged

in properly and check that power is being supplied from the mains outlet.

4. Bridge LED - The bridge LED will light when you have set the rear panel MODE

SWITCH （14） for mono bridge operation. Always make sure that this switch is

in the correct position and that all speaker connections have been made correctly

for the mode of operation you wish to use before powering up the amplifier.

5. Stereo LED - The stereo LED will light when you have set the rear panel MODE

SWITCH （14） for stereo operation. Always make sure that this switch is in the

correct position and that all speaker connections have been made correctly for the

mode of operation you wish to use before powering up the amplifier.

6. Parallel LED - The parallel LED will light when you have set the rear panel MODE

SWITCH（14） for parallel mono operation. Always make sure that this switch is

in the correct position and that all speaker connections have been made correctly

for the mode of operation you wish to use before powering up the amplifier.

7. Power Switch - Turns the unit on and off.

8. Level controls - Establish the input levels required for each channel. only the

channel 1 level control works in mono Bridge mode.

U S E R I N S T R U C T I O N S

Setup Rear Panel Operating Instructions  Stereo Operation  Parallel Mono Operation  Mono Bridge Operation SpecificationsFront Panel

PS-3000/PS-4000/PS-5000

UNiKA

1 2 3

PS-5000

page 5

9. Speaker Outputs - Connectors are provided to connect speakers to the

amplifier quickly and easily. They are high current rated and provide very stable

and durable contacts. A third Speakon connector in the center is provided to be

used if the amplifier is in the Mono Bridge mode. Every Speakon connector has

Pin 1+ as positive and Pin 1- as negative.

10. Ground lift switch - Is used to lift the balanced input connector’s

ground/shield from the amplifier's ground. When the signal ground lifted, The

sound source disconnects from the amplifier's ground preventing ground

loops which can generate hum and noise. See the Signal Ground Lift Switch

instructions for more detail.

11. XLR Input Jacks - Electronically balanced inputs accept a standard XLR

connector. Pin 1 = shield/ ground, Pin 2 = hot or positive (+) and Pin 3 =cold

or negative (-)

12. Gain switch - PS Series amplifier you can select different input sensitivities,

respectively three different voltage gains. The switch settings are 26dB

voltage gain, 32dB voltage gain and 1.4V input sensitivity.

13. Limiter switch - In some applications it may be necessary to switch off the

built in peak limiter. In normal use, with limiters, the distortion is less than

0.5% even when the Clip LED is flashing. If the loudspeaker system or a pre

connected controller allows the use of an amplifier with more than 0.5% THD

you can switch off the limiter. In this case you should be aware that the

parameter curve at clip level is very steep and you will have only a small

improvement of the usable signal, but a strong increase of distortion.

14. Operation Mode Switch - Switch is used to set the unit for Parallel mode,

Stereo mode and Mono Bridge mode.

Output 2 Mono Bridge

Output

Output 1

CH 1CH 2

CH 1

CH 2

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Serial No.:

CAUTION -TO PREVENT ELECTRIC SHOCK, DO NOT REMOVE COVER

OR ANY SCREWS. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING

TO QUALIFIED SERVICE PERSONNEL.

WARNING:

TO PREVENT FIRE OR SHOCK

HAZARD. DO NOT EXPOSE THIS

APPLIANCE TO RAIN OR

MOISTURE.

Output 2 Mono Bridge

Output

Output 1 Ground Lift

PUSHPUSH

1.4V

26 dB

Gain

On Off

Limiter

Parallel Bridge

Stereo

32 dB

Mode

INPUT 1

Ground On

INPUT 2

14 11

U S E R I N S T R U C T I O N S

Setup Front Panel Operating Instructions  Stereo Operation  Parallel Mono Operation  Mono Bridge Operation SpecificationsRear Panel

PS-3000/PS-4000/PS-5000

UNiKA

page 6

OPERATING INSTRUCTION

The amplifier's power must be turned off when changing modes of operation.

Stereo Operation

The unit has two channels for stereo operation. Each channel provides a separate and discrete signal at the

speaker outputs according to the signal received at the input.

The following instructions are for applications with 8 Ohm, 4 Ohm or 2 Ohm speakers of matched power rating.

1. With the power off, set the MODE SWITCH（14）to the STEREO position. When the power is on, be sure the Stereo LED on the front panel. If no, you have the

switch in the wrong position. Correct before continuing.

2. With the power off, connect your input cables to the channel 1 and channel 2 inputs using either the female XLR INPUT JACK（11）or male XLR INPUT JACK

（11）of each channel. The other channel 1 & channel 2 input can be used to link to an additional amplifier.

3. Connect the loudspeakers to the channel 1 and channel 2 SPEAKERS OUTPUT（9）.THE TOTAL SPEAKER LOAD MUST BE AT LEAST 2 OHM PER CHANNEL.

If you try to operate at a lower impedance, the amplifier will go into protection mode and stop operation until you correct the load conditions.

4. With the LEVEL CONTROLS（8）of both channels set to zero （fully counterclockwise）, turn the POWER SWITCH（3）on. Apply a signal to the input of the

amplifier. The level of the input signal should be as high as you will ever need it to be. this way, It will be as high above the amplifier's noise floor as possible,

ensuring an excellent performance and signal to noise ratio. Adjust the LEVEL CONTROLS for each channel to achieve the desired maximum listening level.

CH.2

CH.1

INPUT



NOTE : When the clip LED's light, there is distortion present in the amplifier's output section. If a clip LED remains on or flashes repeatedly, reduce the signal level

by lowering the input level control for the channel that is clipping or reduce the level at the source.

CH.2

INPUT

U S E R I N S T R U C T I O N S

Setup Front Panel Rear Panel  Parallel Mono Operation  Mono Bridge Operation SpecificationsOperating Instructions  Stereo Operation

PS-3000/PS-4000/PS-5000

UNiKA

page 7

CH.2

CH.1

INPUT

Parallel Mono Operation

Follow these instructions for parallel Mono Operation using a single input cable, and you will have the same

monophonic signal on both the channel 1 and the channel 2 output.. Each channel's output is controlled

independently by that channel's level control.

1. With the power off, set the OPERATION MODE SWITCH（6）to the PARALLEL MONO position. When the power is on, the PARALLEL MONO LED（12）on the

front panel will light. If the LED does not illuminate, you have the switch in the wrong position. Correct before continuing.

2. With the power off, connect your input cables to channel 1 only using the either the female XLR INPUT JACK（11）or male XLR INPUT JACK（11）of channel 1.

The other channel 1 input can be used to link to an additional amplifier.

3. Connect the loudspeakers to the channel 1 and channel 2 SPEAKER OUTPUT（9）. THE TOTAL SPEAKER LOAD MUST BE AT LEAST 2 OHM PER CHANNEL. If

you try to operate a lower impedance, the amplifier will go into protection mode and stop operation until you correct the load conditions.

4. With the LEVEL CONTROLS（8）set to zero (fully counterclockwise), switch the power on. Apply a signal to the input. The level of the input signal should be as high

as you will ever need it to be. This way, it will be as high above the amplifier's noise floor as possible, ensuring an excellent performance and signal to noise ratio.

Adjust the LEVEL CONTROLS for each channel to achieve the desired maximum listening level.



NOTE : When the clip LEDs light, there is distortion present in the amplifier's output section. If a clip LED remains on or flashes repeatedly, reduce the signal level

by lowering the input level control for the channel that is clipping or reduce the level at the source.

Setup Front Panel Rear Panel  Stereo Operation  Mono Bridge Operation SpecificationsOperating Instructions  Parallel Mono Operation

U S E R I N S T R U C T I O N S

PS-3000/PS-4000/PS-5000

UNiKA

page 8

CH.2

CH.1

INPUT

Mono Bridge Operation

Follow these instructions to bridge the unit's output. Bridging the amplifier converts the unit to a monophonic or

single channel. The amplifier can be used with 4 Ohm or higher loads only in Mono Bridge mode. This mode is

used to provide a higher voltage with greater headroom to your speaker. Before setting your amplifier for Mono

Bridge operation.

Make sure that your speaker can handle the high power level provided by the amplifier in Mono Bridge mode.

1. With the power off, set the OPERATION MODE SWITCH（14）to the BRIDGE position. When the power is on, the BRIDGE LED（4）on the front panel will light. If

the LED does not illuminate, you have the switch in the wrong position. Correct before continuing.

2. With the power off, connect your input cables to channel 1 input only using the either the female XLR INPUT JACK（11）or male XLR INPUT JACK（11）of channel

1. The other channel 1 input can be used to link to an additional amplifier.

3. Connect the loudspeaker to the BRIDGE SPEAKER OUTPUT（ 9 ）only. The total speaker load must be at least 4 Ohms or above. If you try to operate at a lower

impedance, the amplifier will go into protection mode and stop operation until you correct the load conditions.

4. With the CHANNEL 1 LEVEL CONTROL（3）set to zero （fully counterclock-wise）, switch the power on. Apply a signal to the input. The level of the input signal

should be as high as you will ever need it to be. This way, it will be as high above the amplifier's noise floor as possible, ensuring an excellent performance and signal

to noise ratio. Adjust the LEVEL CONTROL （14）for channel 1 to achieve the desired maximum listening level.

CAUTION：Before you begin, make sure your amplifier is disconnected from the power source, with power switch in the “off” position and all level controls

turned completely down (counter clockwise).



NOTE : When the clip LEDs light, there is distortion present in the amplifier's output section. if a clip LED remains on or flashes repeatedly, reduce the signal level

by lowering the input level control for channel 1 or reduce the level at the source. During Mono Bridge operation, the channel 2 level is inactive, however, both

channels LEDs will flash simultaneously and show output conditions.

Setup Front Panel Rear Panel  Stereo Operation  Parallel Mono Operation SpecificationsOperating Instructions  Mono Bridge Operation

U S E R I N S T R U C T I O N S

PS-3000/PS-4000/PS-5000

UNiKA

page 9

USING THE SIGNAL GROUND LIFT SWITCH

Depending on you system configuration, sometimes applying the ground will create a quieter signal path. Sometimes lifting the ground can eliminate ground loops and

hum to create a quiter signal path.

1. With the power amp on, listen to the system in idle mode (no signal present) with the ground applied（the SIGNAL GROUND LIFT SWITCH（5）in the left position）.

2. Then turn the power off before moving the SIGNAL GROUND LIFT SWITCH （5）. Lift the ground by moving the SIGNAL GROUND LIFT SWITCH to the right, turn

the power back on and listen to determine which position will provide a signal devoid of background noise and hum. Keep the SIGNAL GROUND LIFT SWITCH in the

ground position if the noise level remains the same in either position.

CAUTION：Do not terminate the ac ground on the power amplifier in any way. Termination of the ac ground can be hazardous.

Frequency Response. at2c

+1.75

+1.5

+1.25

+0.75

+0.5

+0.25

_0.25

_0.5

_0.75