Crown DC-300A - General Specifications

2B
2.3 GENERAL SPECIFICATIONS
Hum and Noise
(20Hz-20KHz)
Phase Response
Input Impedance
Amplifier Output
Protection
Overall Protection
Turn-on
Circuit
Power Supply
Power Requirements
Heat Sinking
Chassis
Controls
Connectors
Dimensions
Weight
Finish
110dB below rated output.
+0, -15° Zero to 20KHz at 1 watt.
100K ohms at minimum gain, 10K ohms at maximum gain.
Short, mismatch, and open circuit proof. Limiting is instantaneous with no flyback pulses, thumps,
cutout, etc. No premature limiting on transients.
AC line fused. Thermal switch in AC line protects against overheating caused by insufficient
ventilation. Controlled slewing rate voltage amplifiers protect overall amplifier against RF burn-
outs. Input overload protection is furnished by internal resistance at inputs of amp.
Instantaneous, with minimum thumps and no program delay.
Wideband
multiple
feedback
loop
design
utilizing
one
linear
IC
(dual
op-amp).
Total
equivalent
of
59
transistors,
32
signal
diodes,
3
zeners
and
6
rectifier
diodes.
1
kilowatt
transformer
with
massive
computer-grade
filter
capacitors
storing
over
48
joules
of
energy.
Two
regulated
supplies
for
complete
isolation
and
stability.
Requires 50-400Hz AC with selectable taps for 120, 128, 240, 248, and 256V +10% operation.
Draws 40 watts or less on idle, 500 watts at 300 watts total output.
Massive black-anodized heat sinks are thermally joined with the chassis, thereby utilizing the en-
tire amplifier as a heat sink.
All aluminum construction for maximum heat conduction and minimum weight. Heavy aluminum
front panel is a single extrusion.
Independent input level controls are on front panel. Power switch, with integral pilot light is on
front panel. Non-interacting DC balance controls are mounted behind front panel.
Input — % inch phone jack
Output — Color coded binding posts
AC Line — Three-wire (grounded) male connector on 5 ft. min. cable.
19 inch standard rack mount (W.E. hole spacing), 7 inches high, 9% inches deep (from mounting
surface).
45 pounds
Bright-anodized brushed aluminum front panel with black leatherette lower panel.