AMPLIFICATEUR CREST AUDIO CD3000 À GUÉGON

Professional sound at its best.   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.   Features     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     Five-year warranty Specifications     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     Frequency response 1W @ 8 ohms: 20Hz—20khz, +/-1db     Power bw rated power @ 4 ohms, 1% THD+N: 20Hz—20khz, +/-1db     THD + N:     Imd; SMPTE/DIN 4:1 (60 Hz / 7 khz):     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): 20A /12A     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 1