Crown Audio CSL 1400 - Manual (Page 13)

1400 CSL Power Amplifier
Page 14 Reference Manual
ohms, unbalanced.
Output Connector: Two sets of color-coded 5-way bind-
ing posts (for banana plugs, spade lugs or bare wire).
Output Impedance: Less than 10 milliohms in series
with less than 2 microhenries.
DC Output Offset: Less than 10 millivolts.
Output Signal
Stereo: Unbalanced, two-channel.
Bridge-Mono: Balanced, single-channel. Channel 1
controls are active; Channel 2 should not be used.
Parallel-Mono: Unbalanced, single-channel. Channel
1 controls are active; Channel 2 should not be used.
Protection
The 1400 CSL amplifier is protected against shorted,
open or mismatched loads; overloaded power sup-
plies; excessive temperature, chain destruction phe-
nomena, input overload damage and high-frequency
blowups. It also protects loudspeakers from input and
output DC, as well as providing protection from turn-
on/turn-off transients.
If operating conditions are unreasonable, the patented
ODEP circuitry proportionally limits the drive level to
protect output transistors, particularly in the case of el-
evated temperature. A thermal switch imbedded in the
transformer protects the power supplies from overload.
In the rare event that a transformer overheats, the ther-
mal switch removes power, waits until the unit has
cooled to a safe temperature and resets itself. Con-
trolled slew rate voltage amplifiers protect the unit from
RF burnouts, and current-limiting resistance protects
the input circuitry from overload. (Refer to Section 3.3.)
Turn On: No dangerous transients. The four second
(approximate) turn-on delay can be changed. Contact
Crown’s Technical Support Group for details.
Construction
Durable black finish on steel chassis with special “flow-
through” ventilation from front to side panels.
Cooling: Internal heat sinks with forced air cooling for
rapid, uniform heat dissipation.
Dimensions: Standard 19-inch (48.3-cm) rack mount
width (EIA RS-310-B), 3.5-inch (8.9-cm) height and 16-
inch (40.6-cm) depth behind the mounting surface.
Approximate Weight: Center of gravity is 6 inches
(15.2 cm) behind front mounting surface.
120 VAC, 60 Hz Units: 36 pounds, 2 ounces (16.4 kg)
net; 40 pounds (18.2 kg) shipping weight.
International Units: 37 pounds, 3 ounces (16.9 kg)
net; 40 pounds, 15 ounces (18.6 kg) shipping weight.