Bogen Platinum Series User Manual

Operation
8
ALC (Rear Panel; #17)
The TEL input features an automatic level control (ALC) which compen-
sates for different voice levels and speaking styles of the individuals using
the system. The amplifier is shipped with this control in the OFF (max.
counterclockwise) position.
To adjust the ALC:
1. Rotate the MIC 5/TEL and MASTER controls to the highest level likely
to be used.
2. Speak softly and distinctly into the telephone mouthpiece while
adjusting the MIC 5/TEL volume control to the desired output level.
3. Speak in a loud voice directly into the telephone mouthpiece while
rotating the ALC control clockwise to the point where the output of the
amplifier is reduced to the same level as that obtained in Step 2.
4. The MIC 5/TEL and MASTER controls can be used to vary the overall
volume without upsetting the ALC adjustm
ent.
VOX (Rear Panel; #18)
The telephone page input features voice-activated AUX muting. This feature
always mutes AUX 2 and only mutes AUX 1 when the AUX1/MIC 6 switch
is set in that position.
The VOX control should be set so that only the desired signal is above
the threshold level, while unwanted noise is below it.
To adjust the sensitivity of the VOX circuit:
1. Rotate the VOX control fully clockwise. While making a public address
announcement and talking at a low level, the sound should not be
choppy or missing parts of words. If it is choppy or intelligibility is poor,
rotate control counterclockwise to the point where the sound is clear
and crisp (but not to the maximum counterclockwise position).
2. If the background music shuts down when no page is in progress,
rotate the control clockwise until the music will not shut down when
no page is in progress.
LEDs (Front Panel; #10)
• FAULT - This flashing LED will indicate a mode where the amplifier is
self-protecting. This indication signifies a malfunction. For more inform-
ation, refer to Amplifier flashes the FAULT LED in the Troubleshooting
section.
• LIMIT - This LED indicates full-power output. It also is calibrated at the
level where the amplifier’s output will no longer increase, even with
increasing input, thus the amplifier is limiting its output power level.
• -3 dB - The power-level indicator calibrated at 3 dB down or 1/2 from full
power.
• -6 dB - The power-level indicator calibrated at 6 dB down or 1/4 from full
power.
• -12 dB - The power-level indicator calibrated at 12 dB down or 1/16th
from the amplifier’s full power.
• -24 dB - This LED is the beginning of a power-level indicator. Its cali-
bration point is 24 dB down, or 1/256th, from the amplifier’s full power
output.
• ON - Illuminates green to indicate power is on.
MIC 1
M
IC 2
M
IC 3
M
IC 4
M
IC 5/TEL
MIC 6/AUX 1
AUX 2
0
2
4
6
8
10 0
2
4
6
8
10
0
2
4
6
8
10 0
2
4
6
8
10 0
2
4
6
8
10 0
2
4
6
8
10
0
2
4
6
8
10
MASTER
0
2
4
6
8
10
CONTOUR
IN
OUT
ENHANCE
IN
OUT
GAIN
FREQ
Q
0
-15
+
15
0
-15
+
15
0
-15
+
15
0
-15
+
15
0
-15
+
15
100
40 200
400
190 600
1k
550 1.8k
2.8k
1.6k 4k
7k
3.3k 16k
3
1 10
3
1 10
3
1 10
3
1 10
3
1 10
EQ
BYPASS
MIC 5/TEL
0
2
4
6
8
10
FAULT
LIMIT
-3dB
-6dB
-12dB
-24dB
ON
MIC 1
M
IC 2
M
IC 3
M
IC 4
M
IC 5/TEL
MIC 6/AUX 1
AUX 2
0
2
4
6
8
10 0
2
4
6
8
10
0
2
4
6
8
10 0
2
4
6
8
10 0
2
4
6
8
10 0
2
4
6
8
10
0
2
4
6
8
10
MASTER
0
2
4
6
8
10
CONTOUR
IN
OUT
ENHANCE
IN
OUT
GAIN
FREQ
Q
0
-15
+
15
0
-15
+
15
0
-15
+
15
0
-15
+
15
0
-15
+
15
100
40 200
400
190 600
1k
550 1.8k
2.8k
1.6k 4k
7k
3.3k 16k
3
1
10
3
1 10
3
1 10
3
1 10
3
1 10
EQ
BYPASS
MIC 5/TEL
0
2
4
6
8
10
FAULT
LIMIT
-3dB
-6dB
-12dB
-24dB
ON
MIC 1
M
IC 2
M
IC 3
M
IC 4
M
IC 5/TEL
MIC 6/AUX 1
AUX 2
0
2
4
6
8
10 0
2
4
6
8
10
0
2
4
6
8
10 0
2
4
6
8
10 0
2
4
6
8
10 0
2
4
6
8
10
0
2
4
6
8
10
MASTER
0
2
4
6
8
10
CONTOUR
IN
OUT
ENHANCE
IN
OUT
GAIN
FREQ
Q
0
-15
+
15
0
-15
+
15
0
-15
+
15
0
-15
+
15
0
-15
+
15
100
40 200
400
190 600
1k
550 1.8k
2.8k
1.6k 4k
7k
3.3k 16k
3
1
10
3
1
10
3
1
10
3
1
10
3
1
10
EQ
BYPASS
MIC 5/TEL
0
2
4
6
8
10
FAULTFAULT
LIMITLIMIT
-3dB-3dB
-6dB-6dB
-12dB-12dB
-24dB-24dB
ONON

Bogen Platinum Series Specifications

General

Brand	Bogen
Model	Platinum Series
Category	Amplifier
Language	English