Bogen C10B Manual

DESCRIPTION
INSTALLATION
The Bogen Models C10B and C20B solid-state 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-
opcn switch is used foi niiciupliunc 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 constant-voltage 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 CI0B 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.
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., Leviton 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
C10B C20B
POWER OUTPUT: 10 watts
20 watts
FREQUENCY RESPONSE:
80 to 10,000 Hz ±2dB
HUM
AND NOISE:
(20 - 20kHz)
MIC Input S5dB below rated output
AUX Input 70dB below rated output
SENSITIVITY:
MIC HI-Z Input 3mV
MIC LO-Z Input 300/iV
AUX Input 250mV
OUTPUTS:
4, 8, 16 ohms
25V (62.5 ohms)
70V (500 ohms)
4, 8, 16 ohms
25V (31.3 ohms)
70V (250 ohms)
OUTPUT CONNECTIONS:
Screw-type terminals for 4, 8, 16 ohm and 25 V tap
Quick-disconnect socket for 70V tap
INPUT CONNECTIONS:
2
MIC HI-Z
jacks/2
MIC
LO-Z terminals, AUX
HI-Z
jack,
500/600 line with WMT-1 accessory*
CONTROLS:
MIC 1, MIC 2/AUX, Treble control
TONE CONTROL ACTION:
Treble: lOkHz-lldB
POWER REQUIREMENTS:
120 VAC 60Hz
46 watts
120 VAC 60Hz
60 watts
SEMICONDUCTORS: All Silicon — 11 Transistors, 5 Diodes
DIMENSIONS: 1 IVrW x 2%"H x iy/'D (28.9 x 7.3 x 19.7 cm)
WEIGHT:
5 lbs. (2.27 kg) 6 lbs. (2.7 kg)
MIC 2/AUX are switch-selectable.