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Crest Pro-LITE 7.5
1170W @ 8 Ohms Dual Channel Power Amplifier

OUR PART #:  PRO-LITE-7.5

The Crest Pro-LITE™ series  of power amplifiers utilizes an advanced design that reduces weight while increasing output power, reliability and thermal efficiency.
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Our Price: $1,034.60
List Price: $1,478.00
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Crest Pro-LITE 7.5
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The Crest Pro-LITE™ series  of power amplifiers utilizes an advanced design that reduces weight while increasing output power, reliability and thermal efficiency. Pro-LITE™ Series amplifiers are also designed with a resonant switch-mode power supply and a high-speed class D topology that yields the highest audio resolution and efficiency available. Advanced technology and extensive protection circuitry allow operation with greater efficiency into difficult loads and power conditions. ACL™ (Automatic Clip Limiting) circuitry ensures trouble-free operation into loads as low as 2 ohms. ACL™ protects drivers and ensures that sonic integrity is maintained, even in extreme overload conditions. The Pro-LITE's high-efficiency design allows the amplifier to operate at very low temperatures and does not require massive heat sinks to cool.

For your safety, read the important precautions section, as well as input, output and power connection instructions. Although the Pro-LITE™ amplifier is simple to operate and housed in an ultra-strong, ultra-lightweight chassis, improper use can be dangerous. This amplifier is very high-powered and can put out high voltages and sizable currents at frequencies up to 30 kHz. Always use safe operating techniques when operating this amplifier.

Crest Pro-LITE 7.5 Specifications:

  • Rated Watts:
    • 2 channels x 2 ohms: 4800 watts 20ms repetitive burst / 3790 watts 1% THD both channels driven @ 1kHz.
    • 2 channels x 4 ohms: 2810 watts 20ms repetitive burst / 2450 watts 1% THD / 2030 watts 0.15% THD, both channels driven @ 1kHz.
    • 2 channels x 8 ohms  1550 watts 20ms repetitive burst / 1425 watts 1% THD / 1200 watts 0.15% THD, both channels driven @ 1kHz.
  • Minimum Load Impedance: 2 ohms
  • Maximum RMS Voltage Swing: 124 volts
  • Frequency Response: 20Hz - 25kHz; +0dB, -3dB
    • 20Hz - 20kHz 2ch x 2 ohms: <0.5% @ 3390 watts 20Hz to 4kHz, decreasing to 3100 watts @ 20kHz, both channels driven.
    • 20Hz - 20kHz 2ch x 4 ohms: <0.15% @ 1850 watts 20Hz to 20kHz, both channels driven.
    • 20Hz - 20kHz 2ch x 8 ohms: <0.15% @ 1170 watts 20Hz to 20kHz, both channels driven.
  • Input CMRR: > - 75dB @ 1 kHz
  • Voltage Gain: x 40 (+32dB)
  • Crossover: 100Hz switchable 2nd order high pass and 3rd low pass per channel.
  • Crosstalk: > -60dB @ 1kHz @ 1000 watts power @ 8 ohms.
  • Hum and Noise: > -100dB, "A" weighted referenced to rated power @ 4 ohms.
  • Slew Rate: > 12V/µs
  • Damping Factor (8 ohms): > 200:1 @ 20Hz -1kHz @ 8 ohms
  • Phase Response: +15° to -85° from 20Hz to 20kHz
  • Input Sensitivity: 2.25 volts +/- 3% for 1kHz 4ohm rated power, 2.2 volts +/- 3% for 1kHz 2 ohm rated power
  • Input Impedance: 20 kilohms, balanced and 10 kilohms unbalanced.
  • Current Draw:
    • @ 1/8 in VA (watts): 2210 (1440) @ 2 ohms, 1550 (950) @ 4 ohms, 985 (560) @ 8 ohms
    • @ 1/3 in VA (watts): 4260 (3150) @ 2 ohm, 3120 (2160) @ 4 ohms, 1890 (1200) @ 8 ohms
  • Idle Consumption: 250VA, 120 watts.
  • Cooling: 3 temperature dependent variable speed fans.
  • Controls: 2 front panel attenuators, crossover select switch for HPF, Normal and LPF
  • Indicator LEDs: Five LED indicators per channel: Active, Signal, DDT, Temperature and DC
  • Protection: Thermal, DC, subsonic, incorrect loads, under and over voltage
  • Connectors:
    • Inputs: Dual combination 1/4" XLR
    • Outputs: Dual 1/4" thru, one 2-pin & one 4 pin twist-lock connector
  • Construction: 0.062" thick aluminum
  • Dimensions: 3.5" x 19" x 17" behind front panel + 0.6" for handle
  • Weight:
    • Net*: 14.6 lbs (6.61 kg)
      *Measurement does NOT take power cord into account.
    • Gross: 18.4 lbs (8.34 kg)
  • NOTES:
    • Rated power readings made with BW: 20 Hz to 22 kHz. All power measurements made @ 120 VAC or 240VAC.
    • 2 ohm steady state sine wave power is time limited by circuit breaker.
    • Bridge operation is NOT possible.
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