User manual CREST AUDIO CD1000 DATASHEET

[. . . ] CD1000 - CD3000 Power Amplifiers CD SERIES (CD3000 model shown) power specifications 8 stereo 4 / 21 stereo 8 / 41 bridged CD3000 CD2000 CD1500 CD1000 800W 560W 400W 280W 1500W 1000W 750W 500W 3000W 2000W 1500W 1000W 1kHz, 0. 2% THD+N / 12 stereo and 4 bridged operation at 1kHz, 0. 4% THD+N Features · Dramatically reduced net weight · Linear power supply / digital output stages · Very low current draw · Latest generation of high-speed, mosfet output devices · Cooled by variable speed fan with back-to-front airflow · Inputs - Balanced female Neutrik XLR, 1/4" TRS combo jacks Description The CD Series amplifier is the next generation family of elevated efficiency amplification from Crest Audio. With sonic performance the primary priority, the CD Series uses a combination of a linear power supply and a class D output to deliver Crest Power in a compact and cost-effective package. A full complement of features and power-points makes this series very versatile, whether powering nightclub systems or high school gymnasiums. [. . . ] This allows amplifier will dramatically reduce the number of kW / hr needed to operate. safe operation into nominal 2 ohm speaker loads. AUTORAMP gradually increases gain to the attenuator level-settings when the amplifier is turned on. Other protection features include: short circuit, dc voltage, comprehensive thermal management, current in-rush turn-on/off transient, and sub/ultrasonic input. Specifications CD1000 stereo power 8 ohms 4 / 21 ohms bridged mono power 8 / 41 ohms maximum output voltage CD Series Power Amplifiers CD1500 CD2000 CD3000 280W 400W 560W 800W 500W 750W 1000W 1500W 1000W 1500W 2000W 3000W 53V rms 64V rms 72V rms 85V rms 1kHz, 0. 2% THD+N Power figures are watts per channel, both channels driven. 1 1kHz, 0. 4% THD+N for 2 ohm stereo and 4 ohm bridged operation. 20Hz­20kHz, +/-1dB 20Hz­20kHz, +/-1dB <0. 2% rated power @ 4 ohms, 1kHz <0. 35% @ -3 dB below rated power @ 8 ohms 400:1 @ 8 ohms (20 Hz to 100 Hz) >60dB @ 1kHz Selectable: x20, x40, or . 775 V for full rated output power >20kohms balanced, >10kohms unbalanced > -100dB, A-weighted below rated power @ 4 ohms > -60dB below max rated power (1kHz) D Linear with toroid transformer 10A / 6A 12A / 8A 2. 6A 3. 6A 5. 3A 7. 5A 1. 0A 1. 1A 484 614 frequency response 1W @ 8 ohms power bw rated power @ 4 ohms, 1% THD+N THD + N imd; SMPTE/DIN 4:1 (60 Hz / 7 KHz) damping factor input CMRR gain / input sensitivity @ 4 ohms input impedance hum and noise crosstalk class power supply circuit breaker rating (120V/230V) current draw (120VAC) 1/8 power, 4 ohms 1/3 power, 4 ohms at idle thermal emissions 1/3 Power, 4 ohms btu / hr cooling input connectors output connectors controls LED indicators construction dimensions weight warranty 15A / 10A 4. 5A 9. 6A 1. 25A 781 20A /12A 7. 0A 14. 0A 1. 5A 1024 Back to front via variable speed DC fan balanced female XLR, 1/4"TRS, unbalanced 1/4" TS on Neutrik combo connectors Five-way "touch-proof" binding posts and Neutrik SpeakonTM connectors (which presents both outputs on the A SpeakonTM for bi-amplified applications) front panel: twin recessed stepped attenuators, power switch rear panel: signal ground-lift, mode select, gain select, circuit breaker signal level (5 element bargraph), protect, active, ACL / IGM 16-gauge steel chassis, cast aluminum front panel - optional handles available 3. 5" x 19" (front panel) 17" (chassis) x 15. 3" (16. 55" to rack ears) h x w x d 30 lbs 35 lbs 38 lbs 41. 4 lbs five years USA, Canada, United Kingdom, and many other countries Architects' & Engineers' Specifications: The power amplifier shall consist of 2 channels. Each channel will deliver a minimum of (280 / 400 / 560 / 800) watts at 8 ohms, (500 / 750 / 1000 / 1500) watts at 4 or 2 ohms, 1 kHz. In bridged mono mode, it will deliver a minimum of (1000 / 1500 / 2000 / 3000) watts at 8 or 4 ohms, 1 kHz. It shall weigh (30 / 35 / 38 / 41. 4) lbs. The amplifier shall incorporate protection circuitry against output short circuits, DC voltage on outputs, thermal overload and load protection due to any form of amp failure. It will include impedance sensing circuitry, and RMS clip limiter and Auto-Ramp signal control. The amplifier shall have a sensitivity of . 775V at the input, which will deliver full rated output power at 4 ohms. The hum and noise level shall be greater than 100dB below rated output at 4 ohms, "A" weighted. The amplifier shall have a class D output stage with a linear power supply. The frequency response shall be greater than 20 Hz - 20 kHz, +/-1 dB, at full rated output power @ 4 ohms, 1%THD. The amplifier will operate at either 120 VAC, 60Hz (safe operating range 100-132VAC) or at 230 VAC, 50Hz (safe operating range 200-253), voltage selection determined at factory. [. . . ] Dimensions main chassis shall be 17" wide (front panel is 19" wide), 15. 3" deep (16. 55" including rear rack ears), 3. 5" high. The amplifiers shall be designated the Crest Audio Model CD1000, CD1500, CD2000, and CD3000. CD2000 rear panel shown Crest Audio reserves the right to make improvements in manufacturing or design which may affect specifications. 9. 22. 04 v. 1. 5 80307074 Crest Audio Inc. Fair Lawn NJ 07410 USA TEL: 201. 909. 8700 FAX: 201. 909. 8744 www. crestaudio. com [. . . ]