BGW 250 - Page 7

POWER BAND:
10 Hz to 20 kHz.
POWER REQU I REr-IENT :
105-120 volts 50-60Hz at 5 amps maximum or
210-240 volts at 2.5 amps maximum.
TURN ON:
Anti surge turn on, no switching transients or thump wil l
appear at output.
OUTPUT PROTECTION:
Each channel is p~otected against shorts, open circuit
opcration, mismatched loads, etc.
LOAD PROTECTION:
Exclusive SCR crow bar protccts speakers against malfunction.
OVERALL PROTECTION:
Power line is protected with fast acting computer type
, circuit breaker. No fuses of any kind are used. Two
thermal switches (one per channel) protect against over
temperature operation. Controlled power bandwidth and
slew rate protect tweeters and amplifier against excessive
high frequency operation. Input overload protection is
afforded op amps by series limiting resistance.
POt\,ER SUPPLY:
A large power transformer with twin primary windings is
used. Computer grade electrolytic capacitors storing
over 22 joules of energy, and a 25 amp bridge rectifier
are employed. Two Zener regulated supplies power each
operational amplifier front end.
POWER REQUIREHENTS:
Unit requires either 10S-129V AC or 210-240V SO-60Hz power.
A 5 amp circuit breaker is supplied for units Hired for
120V operation or a 2.5 amp breaker for 240V operation.
HEAT SINKING:
Each channel has its own removable heat sink. Each
extrusion has 330 square inches of surface nrea.