2
Stereo Power Amplifier
The PM2012 features
high-efficiency
stereo power amplifiers which have been designed
to deliver maximum power into a 4-ohm load. When lower speaker impedances are con
-
nected, a dedicated, sonically transparent circuit limits the output power to safe levels.
Multiple speakers may be connected without the amplifier overheating or shutting down.
Input Channels 1-8
1. Bal Line Input
The Bal Line input ¼-inch TRS (stereo) jack for
connecting line-level sources, e.g. instrument
amp line outputs. Balanced or unbalanced sourc
-
es may be connected using balanced or unbal-
anced shielded cable.
Note: Channels 7 and 8 have
unbalanced instrument-level
¼-inch inputs rather than line-level
so that guitars and basses can be
connected directly to the board.
2. Mic Input
The Mic input is a standard low-impedance XLR
mic-level input.
3. Insert Jack
Use a Y-insert cable (e.g. the Apex A203SPY or
A210SXY) to connect sound processing – EQ,
compressor, etc - directly to an input channel.
Tip=Send, Ring=Return.
4. Gain Control
To aid in matching input signal levels, adjust the
Gain level while using a signal that represents the
loudest signal that will be used; set the Gain just
before the Limit LED begins to illuminate. This will
optimize the channel’s gain for a given source’s
output voltage. During a sound check, depress the
channel Solo Switch and using the Gain control, set the PFL level to O (zero dB) on the VU
Meter display. The channel’s Limit LED can also be useful as a Gain indicator.
5. HPF Button
High-pass filter, press to roll off the bass under 80Hz on vocal, guitar, etc. channels in
order to minimize microphone handling noise and unwanted low-frequency sound spillover.
6. Equalization
The Low and High EQ controls are +/-15dB shelving at 80 & 12 kHz respectively. Mid =
–25 dB to +12 dB with Sweep from 80 Hz to 8 kHz.
7. Mon 1 and Mon 2 Controls
The monitor signals are post-EQ, pre-fade and send signal to their respective Mon Send
masters and Monitor Out jacks.
8. EFX Control
The EFX Sends are post-EQ and post-fader. The channel's signal is routed through the
EFX Send control to the Internal Effects unit and the External Effects Send jack.
9. Aux Control
The Aux path sends post-EQ, post-fader signal to the Aux Send master and Aux Send jack.
24
12
6
6
6
-
+
0
3
0 0
3
6
24
0 0
dB
12
1
Clip
Lmt
Act
0
5
2
8
7
6
4
3
9
1
10
Pan
0
5
2
8
7
6
4
3
9
1
10
EFX
Aux
Mon
1
Mon
2
Sweep
Low
80Hz
Mid
High
12KHz
0
10
0
10
-15
+15
dB
0
0
0
-25
+10
dB
-15
+15
dB
2.5K
80
8K
5K
1.5K
200
100
Hz
1K
Solo
Mute
1
Gain
Insert
Tip: SEND
Ring: RETURN
Bal
Line
Mic
Bal
Line
Mic
HPF
80Hz
8
Gain
Insert
Tip: SEND
Ring: RETURN
Mic
Mic
80Hz
HPF
dB
+15
+35
-5
+62
0
-3
dB
+15
+35
-5
+62
0
-3
Instrument
Input
Instrument
Input
Hi-Z
Hi-Z
Summary of Contents for PowerMAX2012
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