Crest Audio PFA600 Specifications page 2

Max RMS Voltage Swing
Max Peak Voltage Swing
Frequency Response
Damping Factor
Input Sensitivity
Input Impedance
Hum and Noise ("A" Weighted)
Connectors (per channel)
Power Supply
Max Current Draw
LED Indicators (per channel)
Dimensions (H x W x L)
The power amplifier shall have two channels. Each will deliver a mini-
Architect's
mum of 600 watts into 4 ohms, both channels driven, 20Hz-20kHz.
Specifications
Channel A shall have the further capability of delivering 600 watts into
PFA600
2 ohms. In bridged mode, the amplifier shall deliver a minimum of 1200
watts into 8 ohms, both channels driven, 20Hz-20kHz. The amplifier shall be fan-cooled. It
shall have circuitry to protect itself and the speaker load from output short circuits, DC volt-
age on outputs, and thermal overload. It shall have impedance sensing circuitry, an RMS clip
limiter and Auto-Ramp™ signal control. Output relays shall protect the speaker load from
any type of amplifier failure. The amplifier shall have a voltage gain of 40x with an input
sensitivity of 500mV for rated power at 4 ohms. The hum and noise level shall be at least
101 dB below rated output, "A" weighted. SMPTE IMD shall be less than 0.04% at rated
power. The frequency response shall be greater than 20Hz-20kHz, +.1, -.5dB at rated power.
The amplifier will operate on 24 volts DC. Each channel shall be powered independently by
a 1 kVA DC-to-DC switching power supply, with Class H operation for high efficiency, and
Crest Audio specification literature is available in downloadable PDF format; visit our website at: http://www.crestaudio.com. ©1997 Crest Audio Inc.
v. 1.1 7/9/97
AMPLIFIER SPECIFICATIONS
PFA SERIES - PFA600
67V, each channel
97.5V, each channel
20 Hz - 20 kHz; +.1, -.5dB, 600W into 4 Ohms
THD <0.015% @ 600W into 4 Ohms, 1kHZ
SMPTE IMD <0.04% @ 450W into 4 Ohms, 60Hz& 7kHz
Slew Rate 35V / s, input filter bypassed
400:1, @ 1kHz, 8 Ohms
Input CMRR >97.9 dB
Voltage Gain 40x standard, others upon request
500mV RMS for full power at 4 ohms
>20k Ohms, actively balanced
>101dB
Input barrier strip, Octal Socket, barrier strip with 3 parallel outputs
Two 1 kVA power transformers, DC-to-DC switching supplies
5A @ 24 VDC (45A @ 24VDC - 600 Watts into 4 Ohms)
Cooling Rear to front tunnel heatsink, 100 CFM DC fan
Controls 2 front panel attenuators, 2 circuit breaker/power switches, signal ground lift jumper, remote on/off
Clip/Limit, Signal, Protect, Active, On, Undervoltage, Overvoltage
Protection High temp., DC voltage, turn-on/turn-off transient, subsonic, ultrasonic, short circuit, IGM™, AutoRamp™
Construction Modular, 14 ga. steel chassis
5.25"x19"x15" (16" to rear ears); 13.34cm x 48.26cm x 38.10cm (40.64cm to rear ears)
Gross Weight 55.0 lbs (24.52 kg.)
Net Weight 41.0 lbs (23.10 kg.)
Warranty 5 years, parts and labor
Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification.
B8000001
have a magnetic circuit breaker/power switch. Maximum current draw shall be no greater
than 45 amperes per channel at rated power into a 4 ohm resistance. Indicators shall include
Clip/Limit, Signal, Protect, and Active LED's for each channel, as well as an Undervoltage
LED, an On LED, and an Overvoltage LED. The amplifier shall have an attenuator control
for each channel, a signal ground lift jumper, remote on/off connections, and DC power
input terminals. The inputs shall be actively balanced and have female XLR-type 3-pin con-
nectors (pin 3+) and barrier strip connectors. Output connectors shall be barrier strips, with
three parallel outputs per channel. The amplifier shall have Octal Sockets for optional acces-
sory modules. All connections (input, output, power, control, and accessory), sockets, con-
trols, switches, jumpers, and indicators shall be located on the front panel. The packaging of
the amplifier shall allow for standard rack mounting without requiring space between similar
units. Dimensions shall be 5.25" (13.34cm) high, 19" (48.26cm) wide, and 15" (38.10cm)
deep. The amplifier shall have a net weight 41 lbs. (23.10kg). The amplifier shall be desig-
nated the Crest Audio Model PFA600.
Crest Audio Inc.
100 Eisenhower Dr., Paramus NJ 07652 USA
: 201.909.8700 : 201.909.8744
TEL FAX
http://www.crestaudio.com
Printed in USA