Bogen C10B - Manual

ISI
A LEAR SIEGLER COMPANY
PUBLIC ADDRESS
AMPLIFIERS
Models C10B&C20B
DESCRIPTION
The Bogen Mudels ClOB iuiU C20B sulid-stale public address
amplifiers are rated at 10 watts and 20 watts, respectively, and
are UL and CSA listed.
The units will accommodate most microphone types, offering
the capability for both high impedance and low impedance
microphones. A front panel selector switch allows one of the two
microphone channels (MIC 2) to be used as an auxiliary input,
which can be muted when a customer-supplied SPST normally-
opcii switch is used foi [iiiciuphuiic precedence.
Independent volume controls and a treble control, for adjust­
ment of tonal balance, are provided.
Balanced or unbalanced outputs are provided for 4, 8, and 16
ohm speakers, and 25 volt constanl-vollage systems. A terminal
strip with screw terminals allows convenient connection of
speakers, except 70 volt. For 70 volt operation, a quick-disconnect
speaker socket is provided.
The ClOB and C20B amplifiers operate from a 120 volt, 60 Hz
source and have a maximum power consumption of 46 and 60
watts, respectively. A thermostat, enclosed in the power trans­
former, protects the unit against overloads.
INSTALLATION
UNPACKING
The amplifier was carefully checked before leaving the factory.
Inspect shipping container and unit carefully for indication of
improper handling: if the unit has been damaged, make an
immediate claim to distributor from whom it was purchased, or if
the amplifier was shipped directly to you, notify the carrier without
delay and place your claim.
POWER AND GROUNDING
The ac line cord has a three-prong plug which should be
plugged Into a three-wire grounded, 120 volt, 60 Hz outlet. Since it
is important to ground the amplifier, where a three-wire outlet is
not available, use an adapter (e.g., Levitón No. 5017) and connect
the grounding pigtail to the screw securing the wall plate. If the
wall plate screw is not grounded, connect a wire from the GND
terminal of the amplifier to a water or steam pipe.
TECHNICAL SPECIFICATIONS
POWER OUTPUT:
FREQUENCY RESPONSE:
HUM AND NOISE:
(20 - 20kHz)
SENSITIVITY:
OUTPUTS:
OUTPUT CONNECTIONS:
INPUT CONNECTIONS:
CONTROLS
TONE CONTROL ACTION
POWER REQUIREMENTS
SEMICONDUCTORS
DIMENSIONS
WEIGHT
ClOB
10 watts
C20B
20 watts
80 to 10,000 Hz ±2dB
MIC Input SSdB below rated output
AUX Input 70dB below rated output
MIC HI-Z Input 3mV
MIC LO-Z Input 300/iV
AUX Input 250mV
4, 8, 16 ohms
25V (62.5 ohms)
70V (500 ohms)
4, 8, 16 ohms
25V (31.3 ohms)
70V (250 ohms)
Screw-type terminals for 4, 8, 16 ohm and 25V tap
Quick-disconnect socket for 70V tap
2 MIC HI-Z jacks/2 MIC LO-Z terminals, AUX HI-Z jack,
500/600 line with WMT-1 accessory*
MIC 1, MIC 2/AUX, Treble control
Treble: lOkHz-lldB
120 VAC 60 Hz
46 watts
120 VAC 60 Hz
60 watts
All Silicon — 11 Transistors, 5 Diodes
1 iys"W X 276"H X 7y"D (28,9 x 7,3 x 19.7 cm)
5 lbs. (2.27 kg) 6 lbs. (2.7 kg)
‘MIC 2/AUX are switch-selectable.