The CD 1500 Power Amplifier combines a linear power supply and a Class D output to deliver Crest power in a compact and cost-effective package. The CD 1500 is very versatile, whether powering nightclu... Click To Read More About This Product
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The CD 1500 Power Amplifier combines a linear power supply and a Class D output to deliver Crest power in a compact and cost-effective package. The CD 1500 is very versatile, whether powering nightclub systems or high school gymnasiums.
A traditional linear power supply is used in the CD Series. Because of the efficiency of the switching output stage, the transformer does not need to be big or heavy. This gives the CD Series amps an advantage in delivering huge power in a compact, rackmount package. The efficiency of the output stage also gives the power supply the ability to handle heavy duty cycles without compromising sonic integrity.
Crest Audio's engineering has also maintained sonic quality while incorporating the advantages of a switching output stage. High-power Class-D topology is the key to its efficiency and low operating temperature. An additional advantage to the CD 1500's design is the amount of power needed over time. This amplifier will dramatically reduce the number of kW/hr needed for operation.
8 Ohm Stereo ” 400 W
4 Ohm Stereo - 750 W
2 Ohm Stereo - 900 W
8 Ohm Bridged - 1500 W
Dramatically reduced net weight
Linear power supply / Class D 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 XLR, 1/4" TRS combi jacks
Outputs: Speakon and five-way binding posts
Mode selector switch for stereo, parallel and bridged-mono operation
Ground-lift switch and rear panel circuit breaker
Recessed, stepped attenuators with removable knobs
16-gauge steel chassis, cast aluminum front panel
TourClass protection circuits
ACL (Active Clip Limiting) prevents speaker damage by providing gentle gain reduction when signal approaches the clipping threshold
IGM (Instantaneous Gain Modulation) monitors speaker loads to detect conditions that may over-stress output devices, allowing safe operation into nominal 2 Ohm speaker loads
AUTORAMP gradually increases gain to the attenuator level-settings when the amplifier is turned on, preventing abrupt turn-on levels
Other protection features include: short circuit, DC voltage, comprehensive thermal management, current in-rush turn-on/off transient and sub/ultrasonic input
Model: CD 1500 Stereo Power 8 Ohms: 400 Watts Stereo Power 4/2* Ohms: 750 Watts Stereo Power 2 Ohm: 900 Watts Bridged Power 8/4* Ohm: 1500 Watts 1kHz, 0.2% THD+N Power figures are watts per channel, both channels driven. *11kHz, 0.4% THD+N for 2 ohm stereo and 4 ohm bridged operation. Maximum output voltage: 64V RMS Frequency response 1W @ 8 ohms: 20Hz”20khz, +/-1db Power bw rated power @ 4 ohms, 1% THD+N: 20Hz”20khz, +/-1db THD + N: <0.2% rated power @ 4 ohms, 1khz power @ 8 ohms Imd; SMPTE/DIN 4:1 (60 Hz / 7 khz): <0.35% @ -3 db below rated Damping factor: 400:1 @ 8 ohms (20 Hz to 100 Hz) Input CMRR: >60db @ 1khz Gain / input sensitivity @ 4 ohms: Selectable: x20, x40, or .775 V for full rated output power Input impedance: >20kohms balanced, >10kohms unbalanced Hum and noise: > -100db, A-weighted below rated power @ 4 ohms Crosstalk: > -60db below max rated power (1khz) Class: D Power supply: Linear with toroid transformer Circuit breaker rating (120V/230V): 12A /8A Current draw (120VAC) 1/8 power, 4 ohms: 3.6A 1/3 power, 4 ohms: 7.5A At idle: 1.1A Thermal emissions 1/3 Power, 4 ohms BTU / hr: 614 Cooling: Back to front via variable speed DC fan input connectors: balanced female XLR, 1/4" TRS, unbalanced 1/4" TS on Neutrik combo connectors output connectors: Five-way "touch-proof" binding posts and Neutrik Speakon connectors (which presents both outputs on the A Speakon for bi-amplified applications) controls: front panel: twin recessed stepped attenuators, power switch rear panel: signal ground-lift, mode select, gain select, circuit breaker LED indicators: signal level (5 element bargraph), protect, active, ACL / IGM Construction: 16-gauge steel chassis, cast aluminum front panel - optional handles available Dimensions (W x H x D): 19" x 3.5" x 15.375" (483 x 89 x 391 mm) Weight: 37.2 lb (17 kg)
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