Price is for 1. Amps are all in good working condition. CD 3000 Power Amplifier. The CD 3000 3000W 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 3000 is very versatile, whether powering nightclub systems or touring bands. 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 an advantage in delivering huge power in a compact 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 is its low power consumption. 8 Ohm Stereo – 800 W. 4 Ohm Stereo – 1500 W. 2 Ohm Stereo – 1800 W. 8 Ohm Bridged – 3000 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. 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. Stereo Power 8 Ohms: 800 Watts. Stereo Power 4 Ohms: 1500 Watts. Stereo Power 2 Ohm: 1800 Watts. Bridged Power 8 Ohm: 3000 Watts. Maximum output voltage: 85V rms. 775 V for full rated output power. Input impedance: >20kohms balanced, >10kohms unbalanced. Crosstalk: > -60db below max rated power (1khz). Power supply: Linear with toroid transformer. Current draw (120VAC) 1/8 power, 4 ohms: 7.0A. 1/3 power, 4 ohms: 14.0A. At idle: 1.5A. Thermal emissions 1/3 Power, 4 ohms BTU / hr: 1024. 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: 41.4 lb (21 kg).
