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Manual abstract: user guide CREST AUDIO PFA600SPECIFICATIONS
Detailed instructions for use are in the User's Guide.
[. . . ] DC-POWERED AMPLIFIER
PFA SERIES PFA600
Information Sheet
Crest's PFA600 is a compact, extremely powerful DC-powered amplifier designed for portable and mobile applications where AC is either unavailable or impractical. The PFA600 matches the same uncompromisingly high-quality circuitry used in the Crest Professional Series amplifiers with two high-efficiency DC-toDC switching power supplies, incorporating Class H modulated supply rails for further efficiency. Three rack spaces high, the PFA600 runs on 24 volts DC. [. . . ] In bridged mode, the amplifier shall deliver a minimum of 1200 watts into 8 ohms, both channels driven, 20Hz-20kHz. It shall have circuitry to protect itself and the speaker load from output short circuits, DC voltage on outputs, and thermal overload. It shall have impedance sensing circuitry, an RMS clip limiter and Auto-RampTM 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
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 connectors (pin 3+) and barrier strip connectors. [. . . ] The amplifier shall be designated the Crest Audio Model PFA600.
Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification. Crest Audio specification literature is available in downloadable PDF format; visit our website at: http://www. crestaudio. com. 100 Eisenhower Dr. , Paramus NJ 07652 USA TEL: 201. 909. 8700 FAX: 201. 909. 8744 http://www. crestaudio. com
Printed in USA
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