4
PP-6214
PRE AMPLIFIER
Front Panel
Front Panel
1. TRIM CONTROLS 1-8
These knobs provide continuous control of the gain level for the associated input channel.
2. PEAK INDICATORS 1-8
These LED indicators light when the input signal to the associated channel is 3dB below clipping. If the
indicator is lit steadily, reduce the channel’s Trim level (1) to avoid distortion.
3. GAIN SELECT SWITCHES 9/10 – 11/12
These switches select the input gain level for Stereo Channels 9/10 and 11/12. You may select between
+4dB, -10dB or –20dB input level, depending on your input source. If the signal is too weak (very low level),
select a higher setting; if the signal is too hot (overloaded and distorted), select a lower setting.
4. EQ CONTROLS
These knobs provide continuous control of equalization for the stereo (master) output. Three bands of
equalization are provided:
Low: 80Hz, ±12dB, Shelving
Mid: 800Hz ±12dB, Shelving
High: 8kHz ±12dB, Shelving
5. MAIN OUTPUT LEVEL CONTROLS
These sliders provide control of the stereo (master) output level. The output level may be monitored
by the Output Level Meters (6).
6. OUTPUT LEVEL METERS
These five-segment LED meters monitor the level of the stereo (master) output signal.
12
12
12
12
12
12
8KHz
800Hz
80Hz
10
0
10
0
60
16 TRIM
PEAK
2
1
L
E
N
N
A
H
C
L
E
N
N
A
H
C
L
E
N
N
A
H
C
L
E
N
N
A
H
C
L
E
N
N
A
H
C
L
E
N
N
A
H
C
L
E
N
N
A
H
C
L
E
N
N
A
H
C
PRIORITY
10
0
PEAK
10
0
PEAK
10
0
PEAK
10
0
PEA
10
0
PEAK
10
0
PEAK
10
0
PEAK
10
0
1
0
0
4dB
10dB
20dB
4dB
10dB
20dB
12
12
12
12
12
12
8KHz
800Hz
80Hz
EQ
1
2
10
0
10dB
PRE AMPLIFIER
PP
9214
2
1
POWER
OFF
ON
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
TRIM
60
16
30
14
60
16
30
14
60
16
30
14
60
16
30
14
60
16
30
14
60
16
30
14
60
16
30
14
TRIM
6
1
3
1
TRIM
TRIM
TRIM
TRIM
TRIM
1
2
MAIN
CHANNEL 10 CHANNEL
12
1
0
1
9
8
11
3
7
6
5
4
2
Summary of Contents for PP-6214
Page 11: ...9 PP 6214 PRE AMPLIFIER Block Diagram Block Diagram ...
Page 14: ......
