Figure
3
A-2000 REAR PANEL
UNiKA
A-2000/A-3000/A-4000
17. 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.
18. Channel 2 Balanced 1/4" TRS & XLR Input Connectors
- These
connectors accept input signals on balanced TRS and XLR input plugs. See
the figure 4 for information on polarity. Connectors for each channel are in
parallel; the unused connectors may be used for "loop through" connection
to other amplifiers.
XLR pin setting: Pin-3/signal Negative, Pin-2/signal Positive, Pin-1/Ground.
19. Channel 2 Subwoofer Mode On/Off Switch -
Turns the subwoofer mode
for channel two on and off.
20. Channel 2 Frequency Adj. -
This pot adjust the frequency level sent to your
speaker on channel two when using your amplifier in subwoofer mode
21. Channel 1 Frequency Adj. -
This pot adjust the frequency level sent to your
speaker on channel one when using your amplifier in subwoofer mode.
22. Channel 1 Subwoofer Mode On/Off Switch -
Turns the subwoofer mode
for channel one on and off.
23. Channel 1 Balanced 1/4" TRS & XLR Input Connectors
- These
connectors accept input signals on balanced TRS and XLR input plugs. See
the figure 4 for information on polarity. Connectors for each channel are in
parallel; the unused connectors may be used for "loop through" connection
to other amplifiers.
XLR pin setting: Pin-3/signal Negative, Pin-2/signal Positive, Pin-1/Ground.
page 5
31
30
2
8
17
29
33
17
32
20
27
26
25
24
22
21
19
1
8
23
NOTE :
Unbalanced "Tip / Sleeve" plugs
may be used with the balanced TRS " Tip /
Ring / Sleeve " connectors. The "ring"
terminal or negative input will be connected
to ground internally. When using three-pole
(stereo) TRS connectors, make sure that
the ring connection is made either to the
cold (-) output of the source equipment, or
to ground. Incorrect connections may
cause a 6dB loss in level.
Figure
4
Introduction Front Panel
Set Up Speakon Assembly Operating Modes Protection Features Specifications
Rear Panels
PIN OUT
1+
1-
POS NEG
CH- 1
1+
2+
POS NEG
BRIDGE
PIN OUT
1+
1-
POS NEG
CH- 2
~110V 50 Hz