crestPRO2-8002_sp_9-23-98电路图.pdf

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1、descriptionfeatures TourClassprotection circuits acl active clip limiting prevents speaker damage by providing gentle gain reduction at the clipping threshold. igm instantaneous gain modulation monitors speaker loads to detect conditions that may overstress output devices, allowing safe operation in

2、to nominal 2speaker 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. superior s

3、ound quality excellent low frequency and transient response louder than conventional amplifiers maximum output level never dips constant, predictable performance consistent power output accepts any line voltage worldwide50 or 60Hz accepts long power cable runs with no loss of output power draws sign

4、ificantly less peak current lighter-duty power distribution components low line-voltage distortion minimal supply-ripple cost-effective extreme reliability reduced shipping costshalf the weight of conventional amplifiers The Pro II Series heralds a major advance in amplifier design from Crest Audio.

5、 Extreme reliability and hallmark sonic accu- racy of the legendary Professional Series is maintained in the same rugged packagebut at only half the weight. Such dra- matic weight savings are made possible by PowerLok, a radical new power-supply technology that provides significant perfor- mance and

6、 flexibility advances over conventional designs. PowerLok is Crest Audios unique implementation of Power Factor Correction, which allows current to be drawn throughout the entire cycle of the AC line-frequency, provid- ing maximum output power, while drawing significantly smaller peak currents from

7、the AC line. Compared with an amplifier using a conventional power-sup- ply, PowerLok requires less peak power to produce identical output power resultsand because PowerLoks current peaks are smaller, a Pro II amplifier can be serviced by a lower-rated breaker than a conventional amplifier of simila

8、r wattage. .PowerLok technology .dramatically reduced net weight .latest generation of high-speed, wide-bandwidth output devices .twin-tunnel cooling with back-to-front air flow .dual, rear-mounted, continuously-variable-speed fans .balanced male and female xlr inputs with switch-configurable xlr po

9、larity and sensitivity selection .Speakon and five-way binding post output connectors .stereo, parallel, bridged-mono: mode selector switch .ground-lift switch .front panel circuit-breaker switch .recessed, stepped attenuators .modular construction .aluminum chassis .five-year warranty power specifi

10、cations8stereo4stereo2stereo8bridged4bridged 1kHz, 0.01% THD+N800w1400w2000w2800w4000w 20Hz-20kHz, 0.1% THD+N750w1350w1900w2700w3800w Power figures are watts per channel, both channels driven. 8002 8002 power amplifier RadioFans.CN 收音机爱 好者资料库 *A4400059* v. 2.19/17/98 1kHz, 0.01% THD+N20Hz20kHz, 0.1%

11、 THD+N 800W750W 1400W1350W 2000W1900W 2800W2700W 4000W3800W 92V rms,130V peak each channel 20Hz20kHz, +0 / -0.3dB, -3dB135kHz 20Hz20kHz, +0 / -0.23dB 0.05% rated power 4, 1kHz 60dB 1kHz .775V constant sensitivity,x20 or x40 constant gain 20k balanced, 10k unbalanced -110dB, A-weighted below rated po

12、wer -80dB 1kHz below rated power H two versions:90255 or 180255 vac 5060Hz factory configured PowerLok power supply with active power factor correction 36A 120V 7.7A 120V 17.3A 120V 1.5A 120V 51A 2083 BTU/Hr 3899 BTU/Hr back-to-front via two rear-mounted variable-speed DC fans female and male xlr pi

13、n 2+ switch-configurable for pin 3+ Speakon connectors and five-way output binding posts front panel:two attenuators, power switch incorporating magnetic circuit breaker rear panel:signal ground-lift, mode select, input sensitivity, pin 2/3+ switches acl, signal, statusbi-color: active / protect acl

14、, igm, autoramp, short circuit, dc voltage, turn-on/-off transient, current in-rush, sub/ultrasonic input aluminum chassisdouble thickness in rack-ear areas 5.25” x 19” x 18”133 x 483 x 457mmheight x width x depth gross:47lbs21.7kg net: 42lbs19.1kg five years USA, Canada, United Kingdom, and many ot

15、her countries specifications Crest Audio Inc. 100 Eisenhower Dr., Paramus NJ 07652 USA TEL: 201.909.8700 FAX: 201.909.8744 Architechs specifications for this model and other product information is available in downloadable PDF format at Power figures are watts per channel, both channels driven. cres

16、t audio inc. Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification. 8002 power amplifier stereo power 8 4 2 bridged mono power 8 4 maximum output voltage frequency response 1W 8 power bandwidth rated power 4, 1% THD+N THD+N SMPTE IMD damping fa

17、ctor input CMRR switch-configurable input options input impedance hum and noise crosstalk class Power supply Circuit breaker rating Current draw1/8 power, 4 1/3 power, 4 at idle Peak current draw thermal emissions 1/8 Power, 4 1/3 Power,4 cooling input connectors output connectors controls LED indicators TourClassprotection construction dimensions weight warranty rear view 8002 RadioFans.CN 收音机爱 好者资料库