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Manual abstract: user guide CREST AUDIO FXA4801SPECIFICATIONS
Detailed instructions for use are in the User's Guide.
[. . . ] Bass is solid and defined to the limits of audibility, with ample current reserves delivered by an "over-engineered" power supply and advanced Class H circuitry. Wide-bandwidth output devices assure detailed, transparent high frequency response. And, thanks to Crest's exclusive IGM circuit, the FXA4801 will drive 2 loads safely without compromise in performance.
FXA
FXA4801 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 DC fans · Massive, extruded aluminum heat sinks · Balanced XLR and 1/4-inch (TRS) inputs · 2 pair of 5-Way Binding Post Outputs · External switches for stereo/parallel/bridged mono mode, Pin 2/3 hot (+), ground lift, and gain/input sensitivity · TourClass® protection circuits: - ACL (Active Clip Limiting) prevents speaker damage with gentle gain reduction at clip threshold.
Construction and Quality Control
The FXA4801 is built exclusively in Crest's own USA manufacturing facility, with internal components selected for premium quality and proven durability. [. . . ] At 8 ohms, 20Hz - 20kHz, 0. 1% THD+N, it shall deliver a minimum of 950 watts per channel. At 4 ohms, 20Hz - 20kHz, 0. 1% THD+N, it shall deliver a minimum of 1700 watts per channel. In bridged mono mode with an 8 ohm load, 20Hz - 20kHz, 0. 1% THD+N, it shall deliver a minimum of 3400 watts. The amplifier shall have circuitry to protect itself from output short circuits, thermal overload or other adverse load conditions. The amplifier shall protect speaker loads from DC voltage on outputs. The amplifier shall have active clip limiting and impedance sensing circuitry. Output relays shall protect the speakers from amplifier failure. Two rear panel mounted variable speed DC fans (filters detachable without tools) shall provide back to front air flow through the chassis. Each channel shall have a standard (factory-set) input sensitivity of . 775 volt, and shall be fitted with an external switch which allows the gain to be altered to X20 or X40. The hum and noise level shall be 115 dB below rated output, "A" weighted. SMPTE IMD shall be less than 0. 01% at rated power, 60Hz and 7kHz. The amplifier shall have a class H output stage. The frequency response shall be 20Hz-20kHz, +0, -0. 3dB (1W 8). The amplifier will operate at 100V-240V, 50-60 Hz AC (configured at factory). Maximum current draw shall not exceed 25 amperes at 220VAC (limited by front panel breaker). Front panel indicators shall include Active, Protect, Signal, and Clip LED's for each channel. [. . . ] (34. 96 kg. ) net, and shall be designated the Crest Audio model FXA4801 .
Rear View
Designed & manufactured in the USA by:
GAIN
Crest Audio Inc. Paramus, New Jersey 07652 USA
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Power figures are watts per channel, both channels driven. Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification.
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