Crest Audio CPA400 Specifications

CPA400 power amplifier
description
The Crest Audio CPA400 professional power amplifier is
designed to achieve unsurpassed sonic performance and long-
term reliability – even when operating under extreme stress
– in touring or fixed installation applications.
Absolute sonic accuracy is the hallmark of every Crest ampli-
fier. Bass is solid and defined to the limits of audibility, with
ample current reserves delivered by an "over-engineered"
power supply and advanced Class AB output circuit design.
Wide-bandwidth output devices assure detailed, transparent
high frequency response. And, thanks to Crest's exclusive
circuit, the CPA400 will drive 2
IGM
compromise in performance.
Construction and Quality Control
The CPA400 is built exclusively in Crest's own USA manu-
facturing facility, with internal components selected for pre-
mium quality and proven durability. Each modular
subassembly is pre-tested, and the assembled CPA400 receives
a rigorous "hot room" burn-in before thorough final check-
out on precision test equipment
power specifications:
other CPA Series power amplifiers
CPA600
4 stereo
Ω
600w
1 , 0.01% THD+N
kHz
500w
20 -20 , 0.1% THD+N
Hz kHz
power specifications
1 , 0.01% THD
CPA400 kHz
20 -20
Hz kHz
loads safely without
Ω
CPA900 CPA1200 CPA1800
900w 1200w 1800w
800w 1100w 1700w
8 stereo
Ω
250w
245w
, 0.1% THD+N
features
Crest's legendary "overbuilt" power supply
.
toroidal power transformer
.
latest generation of high-speed, wide-bandwidth output devices
.
twin tunnel cooling with back-to-front air flow
.
dual, variable speed
.
massive, extruded aluminum heat sinks
.
balanced and
XLR
.
five-way binding post outputs or Speakon
.
(market dependent)
stereo/parallel/bridged mono mode selector switch
.
ground lift switch
.
input sensitivity selection
.
recessed, stepped attenuators
.
front panel circuit breaker switch
.
modular construction
.
five-year warranty*
.
TourClass ® protection circuits
acl active clip limiting prevents speaker damage by
providing gentle gain reduction at the clipping threshold.
igm instantaneous gain modulation monitors speaker loads to
detect conditions that may overstress output devices, allowing safe
operation into difficult impedances.
autoramp gradually increases gain to the attenuator level-
settings when the amplifier is turned on.
Protection features include: short circuit, dc voltage,
comprehensive thermal management, current in-rush turn-
on/off transient, and sub/ultrasonic input.
4 stereo 2 stereo
Ω Ω
435w 500w
400w 450w
fans
DC
⁄ -inch ( ) inputs
1
TRS
4
™
connectors
8 bridged
Ω
830w
800w
Power figures are watts per channel, both channels driven.
4 bridged
Ω
1100w
900w