User manual CREST AUDIO PRO SERIES 9001 SPECIFICATIONS

[. . . ] Stereo, parallel, and bridged mono operating modes can be chosen with a rear-panel Mode Select switch. Actively balanced female XLR input connections and single-screw solderless output connectors are provided for each channel. The 9001 is fully compatible with the other Crest Audio Professional Series amplifiers, Octal Socket Accessories and the NexSys® computer-controlled audio system. 9001 Features · Crest Audio's legendary "overbuilt" power supply · Toroidal power transformer · Latest generation of high-speed, wide-bandwidth output devices · Tunnel cooling with back-to-front air flow · Variable speed DC fan · High thermal mass heat sinks · Balanced XLR inputs · Single screw solderless output connectors · Stereo/Parallel/Bridged Mono mode selector switch · Rear panel ground lift jumper · 9001 protection circuitry: - Clip Limiting prevents speaker damage with gentle gain reduction at clip threshold. [. . . ] <0. 02% 0. 05% 200:1 >60 dB 2. 26V RMS X40 >20k > -100 dB > -60dB H Female XLR Input (pin 3+), Octal Socket. Single screw solderless copper output lugs. 46, 000 µF 100V-240V, 50-60Hz 2. 0A 16. 2A 30. 0A 65. 0A 3850 BTU/hr 7700 BTU/hr Rear to front tunnel heatsink, variable speed DC fan, 140 CFM max. Front panel: 2 attenuators, circuit breaker/power switch; Rear panel: mode switch, signal ground lift jumper. Clip/Limit, Signal, Temp/DC, Active 12 ga. steel chassis, 0. 187" (5mm) aluminum front panel 5 1/4" x 19" x 19. 5", 133mm x 483mm x 496mm 115 lbs (52. 21 kg. ), 110 lbs (49. 94 kg. ) 5 years, parts and labor Architect's & Engineer's Specifications The power amplifier shall consist of 2 channels and deliver a minimum of 1100 watts at 8 ohms, 2050 watts at 4 ohms and 3000 watts at 2 ohms; per channel, both channels driven, 20Hz-20kHz, <0. 1% THD+N. In bridged (mono) mode, it shall deliver a minimum of 4100 watts at 8 ohms, and 6000 watts at 4 ohms, 20 Hz-20kHz, <0. 1% THD+N. The amplifier shall be rear-to-front tunnel-cooled, with a variable-speed (140 CFM max) DC fan. The amplifier shall have circuitry to protect itself and the speaker load from output short circuits, DC voltage on outputs, and thermal overload. It shall have RMS clip limiting and impedance sensing circuitry. Output relays shall protect the speakers from any type of amplifier failure. The amplifier shall have a voltage gain of X40 with an input sensitivity of 2. 26V for rated power at 4 ohms. The hum and noise level shall be greater than 100 dB below rated output, "A" weighted. The amplifier shall have a class H output stage with a modulated power supply. The frequency response shall be greater than 20Hz-20kHz, +0, -. 3dB (1W/8). The amplifier shall operate at either 100, 120, 220, or 240 volts, 50-60 Hz AC (configured at factory). Maximum current draw at 120V shall be no greater than 65A, both channels driven continuously into 4 ohm resistance. The amplifier front panel shall include Active, Temp/DC, Signal Present and Clip/Limit LED indicators for each channel, a combination power switch/magnetic circuit breaker and recessed and detented gain pots. [. . . ] Crest Audio specification literature is available in downloadable PDF file format; visit our website at http://www. crestaudio. com. 5/21/97 Rear View PIN 3+ PUSH IN A PARALLEL BRIDGE A MODEL 9001 MAXIMUM OUTPUT POWER PER CHANNEL 8 1200 WATTS 4 2200 WATTS PUSH IN -OUT A + CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS : RISQUE DE CHOC ÉLECTRIQUE--NE PAS OUVRIR WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á L'HUMIDITÉ B STEREO B SIGNAL GROUND LIFT DO NOT OPERATE WITHOUT THIS PROTECTIVE COVER -BRIDGE + + OUT B -- Designed & manufactured in the USA by: NEXSYS OUTPUT SAMPLE Crest Audio Inc. [. . . ]