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page 8

UNiKA

 PA-664/PA-1804

PA-1804 Rear Panel

Negative (-) Lead

Positive (+) Lead

Negative (-) Lead

Positive (+) Lead

Negative (-) Lead

Positive (+) Lead

STEREO MODE FULL RANGE CONNECTION

SPEAKER IMPEDANCE MINIMUM 4 OHM

Set to Bridge

MONO BRIDGE MODE CONNECTION

SPEAKER IMPEDANCE MINIMUM 8 OHM

(Can be Set as A Subwoofer Channel)

Figure

 11

CH4 & CH3

CH2 & CH1

CH 4

CH 3

INPUT

PARALLEL

INPUT

PARALLEL

BRIDGE

BRIDGE

CH 1

CH 2

CH-3

_

+                   

CH-4

_

+                   

+                      

+                      

_

_

BRIDGE

MONO

BRIDGE

MONO

CH-1

_

+                   

CH-2

_

+                   

AC IN

BREAKER

RESET

4 CHANNEL INPUT BALANCE

CAUTION

2 OHMS MINIMUM IMPEDANCE PER CHANNEL
4 OHMS MINIMUM IMPEDANCE IN MONO BRIDGE MODE

GROUND
LIFT

200Hz

20Hz

~120VAC  60Hz

1500 WATTS

FREQUENCY

SUB WOOFER

ON / OFF

CH3 & CH2

PARALLEL

CH 4

CH 3

CH 2

CH 1

15

A
M
P

STEREO MODE FULL RANGE CONNECTION

PARALLEL MODE FULL RANGE CONNECTION

SPEAKER IMPEDANCE MINIMUM 4 OHM

PA-1804 Rear Panel

Negative (-) Lead

Positive (+) Lead

Negative (-) Lead

Positive (+) Lead

SPEAKER IMPEDANCE MINIMUM 4 OHM

Set to Parallel

Negative (-) Lead

Positive (+) Lead

Negative (-) Lead

Positive (+) Lead

Figure

 12

CH4 & CH3

CH2 & CH1

CH 4

CH 3

INPUT

PARALLEL

INPUT

PARALLEL

BRIDGE

BRIDGE

CH 1

CH 2

CH-3

_

+                   

CH-4

_

+                   

+                      

+                      

_

_

BRIDGE

MONO

BRIDGE

MONO

CH-1

_

+                   

CH-2

_

+                   

AC IN

BREAKER

RESET

4 CHANNEL INPUT BALANCE

CAUTION

2 OHMS MINIMUM IMPEDANCE PER CHANNEL
4 OHMS MINIMUM IMPEDANCE IN MONO BRIDGE MODE

GROUND
LIFT

200Hz

20Hz

~120VAC  60Hz

1500 WATTS

FREQUENCY

SUB WOOFER

ON / OFF

CH3 & CH2

PARALLEL

CH 4

CH 3

CH 2

CH 1

15

A
M
P

Important Precautions     Introduction

Front Panel     Rear Panel     Set Up     

     Protection     Specifications

     

Operating Modes

Summary of Contents for PA-664

Page 1: ...mportant Precautions Introduction 02 03 Front Panel 04 Rear Panel 05 Set Up 07 Operating Modes 09 Protection 10 Speci cations UNiKA Clip Clip Clip Clip Signal Signal Signal Signal POWER CH 1 CH 2 CH 3...

Page 2: ...suppl mentaries situ s dans le guide Ce symbole est utilis pour indiquer l utilisateur qu il trouvera d importantes instructions importantes sur l utilisation et l entretien de l appareil dans la lit...

Page 3: ...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...

Page 4: ...indicates that a signal above a minimum threshold is present at the amplifier input and that the signal is being amplified 7 Channel 1 4 Clip Indicator This LED will begin to flash when the channel b...

Page 5: ...r channel or bypass the subwoofer function 16 Channel 3 Frequency Adj This pot adjust the frequency level from 20Hz to 200Hz sent to your speaker on channel 3 when using your amplifier in subwoofer mo...

Page 6: ...utputs 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 o...

Page 7: ...IDGE 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...

Page 8: ...u 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...

Page 9: ...OOFER ON OFF CH3 CH2 PARALLEL CH 4 CH 3 CH 2 CH 1 15 A M P STEREO MODE FULL RANGE CONNECTION PARALLEL MODE FULL RANGE CONNECTION SPEAKER IMPEDANCE MINIMUM 4 OHM PA 1804 Rear Panel Negative Lead Positi...

Page 10: ...aker 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 UNiKA PA 664 PA 1804 3 OVERHEATING PROTECT...

Page 11: ...rmonic 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...

Page 12: ...Professional Power Amplifiers UNiKA...

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