Unika A Series, User Instructions, Page: 7 / 18

Figure 5
A-3000/A-4000 REAR PANEL
page 6
UNiKA A-2000/A-3000/A-4000
PARALLEL
STEREO
BRIDGE
NORMAL
FREQUENCY
NORMAL
SUB
WOOF
FREQUENCY
CH-1
20 Hz 20 Hz 200 Hz 200 Hz
CH-2
INPUT BALANCE INPUT THRU
CH-1 CH-2
PUSH TO RESET
1 2
3
HOT COLD GND
BRIDGE
MONO
_
+
+ +
_
CH-1 CH-2
_
PINOUT
1+ 1-
POS NEG
CH- 2
PINOUT
2+ 2-
POS NEG
CH- 2
1+ 2+
POS NEG
BRIDGE
1+ 1-
POS NEG
CH- 1
SUB
WOOF
H-2
C
K
C
O
L
H-1
C
K
C
O
L
~230VAC 50Hz
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Made in Taiwan
S/N.:
20
31 30 2 8
17
2 9
27
33
26 2 5
2 4 22 21
1 9
17
1 8 23
24. Channel 2 XLR THRU Jack - This Jack is used to send a parallel signal
from the channel 2 input jack to another device or amplifier.
25. Mode Selection Switch - This recessed, three-position switch configures
the amplifier for Stereo, Parallel or Bridged Mode operation. Amplifiers are
factory-configured for Stereo Mode. See section on Mode Selection for more
information.
26. Channel 1 XLR THRU Jack - This Jack is used to send a parallel signal
from the channel 1 input jack to another device or amplifier.
27. Fuse Holder (A-2000 only) - This holder houses the external fuse. Always
replace with the exact same type fuse, otherwise instructed to do so by an
authorized audio service technician.
Reset Button (A-3000 and A-4000 only) - This button is used to reset the
breaker.
28. Channel 2 Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon
connector to connect to your speakers input jack.
29. Channel 1 Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon
connector to connect to your speakers input jack.
30. Channel 2 Output Jack / 5-way Binding Post - Connect to your speakers
input jack. Red is positive signal and Black is negative signal.
31. Channel 1 Output Jack / 5-way Binding Post - Connect to your speakers
input jack. Red is positive signal and Black is negative signal.
32. Ground Lift Switch (A-2000 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.
33. 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.
Introduction Front Panel Set Up Speakon Assembly Operating Modes Protection Features Specifications
Rear Panels