Bogen CHB 50 Operating Manual

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BOGENG,

The Challenger Series

MODEL CHB 50

50 WATT PUBLIC ADDRESS AMPLIFIER

LEAR SIEGLER. INC. .3
EOGEN DIVISION

FO. FOX SM
PARAMl/S. NJ. 0"

INSTALLATION AND OPERATING MANUAL

READ THOROUGHLY BEFORE OPERATING EQUIPMENT

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INTRODUCTION

The model 011850 is a general purpose 50
Watt public address amplifier. It features five
separate inputs with facilities for selection and
mixing of up to three inputs. A master volume

control provides control of overall gain. Separ-
ate Bass and Treble controls are incorporated

for adjusting tonal balance.

Outputs are provided for all standard speaker
impedances and for operation with 25 volt and
70 volt long line speaker systems. Two quick
disconnect type plugs permit quick connection
of speaker system.

TECHNICAL SPECIFICATIONS

USEABLE POWER: 50 watts at 5% distortion
FREQUENCY RESPONSE: 20 to 20,000 Hz. iZdb

HUM KLNOISE:
MIC Input: 70db below rated power
AUX input: 80db below rated power
GAIN:
MIC Input: 125db
AUX Input: 95db
MAG Phono input: 110db
SENSITIVITY:
MIC Input: 5 millivolts
AUX Input: 0. 3 volts
MAG Phono Input: 12 millivolts
INPUTS: 2 microphone (high impedance). 1 mag-
netic phono and 2 auxiliary (high impedance,
high level)

OUTPUTS: 4. 8. 16 ohm speakers. 25-VOlt (16
ohms) and 10-volt (100 ohms) line. 2-Quick

Disconnect type sockets and connectors pro-
vided. in addition to screw type terminals.

TONE CONTROL ACTION:

TREBLE: #10 to -l5db 9t lOkHz
BASS: +11 to-lOdb at 50 Hz

CONTROLS:Microphone No. 1 Volume. Input 2
Volume, inputZSelector Switch. Aux 1/2 Vol-
ume. Master Volume, Bass. Treble, Power
and Balance Adjustment. Provisions for Be-
mote Volume Control of Mic 1 and Mic 2/Mag
Phono.

TUBES: Total of 5 (plus silicon rectifier) -6EU7,
12AX7, 604, Z-GIfiGC

POWER REQUIREMENTS: 150 Watts . 105-
125 volts, 50 to 60 cycles, AC

DIMENSIONS: 15-3/4" wide. 6-3/4" high, 10"
deep

WEIGHT: 22 lbs.

ACCESSORIES

MODEL SR-Z REMOTE CDNTROLLER

Permits the user to control the gain of the
Mic l and Mic 2/Mag Phono inputs from dis-
tances up to 2,000 feet from amplifier without
sacrificing power or signal quality. Allows you
to mix and fade the two signal inputs.

MODEL LPG-4 PHONO PLAYER TOP

Model LPG-4 is a complete 4-speed phono-
player designed to be mounted directly on top of
of the amplifier. The unit comes complete with
allnecessary hardware. It can be easily install-
ed and connected to amplifier with only a screw-
driver. It includes a 4-speed vibration-isolated
turntable and tone arm housing a dual-stylii
turnover cartridge.

MODEL LK-5 IDCKING PLATE

Model (-5 Locking Plate is designed to pre-
vent unauthorized tampering with controls of amp-
lifier. Comes complete with instructions and a
set of two keys. As a safety factor. key cannot
be removed when lock is in open position.

CARRYING CASE AND SPEAKERS

A Bogen Model CCIZS carrying case with two
speakers is available for portable systems. Each
section of the case contains a high-efficiency 12"
PM magnet speaker and 25 feet of interconnecting
cable with plug.