Crown DC-300A Instruction Manual page 21

18
A current limiter will not yield to the load but will sus-
tain the constant current demands of the inductive load
without flyback.
Early amplifier designs frequently employed fixed
current limiters but had serious difficulty with obtain-
ing reliable low frequency output while being capable of
full-voltage 4 ohm output. Also, many earlier designs
used fragile epi-base or triple diffused outputs, which
for reliable performance are poor mates for a current
limiter protection scheme. The DC-300A uses eight
*Tradename of RCA
NOMINAL LIMITS OF VI OUTPUT
DISCLOSURE
PROHIBITED
ut
effective Nov. 4, 1974
@@@ AC LINE FUSE BLOWS
(OC SINGLE CHAN.) BLOWS
AT 10A DC IF BOTH
CHANNELS ARE DRIVEN EQUALLY
= = MID-FREQUENCY BURST LIMIT
XXX SHORT CIRCUIT CONTINUOUS LIMIT
AREA OVER WHICH LIMITER (AC)
VARIES (SIGNAL DEPENDENT)
<@@@ MAX. AC (LIMIT (2), V OUT (SINE) AT
MAX.)
MAX. CONT. AC POWER
@, = 2.75)
emmcm= HIGH FREQUENCY LIMIT
FIG. 3-2
GRAPH OF VI OPERATING RANGE OF DC-300A OUTPUT