- Description
Details
Crest Audio Pro-LITE 7.5 power amplifier is designed for years of reliable, flawless operation under rigorous use. The groundbreaking Pro-LITE™ Series utilizes an advanced design that dramatically 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. This revolutionary amplifier offers the sonic superiority and unsurpassed reliability for which Crest is famous, in an extremely efficient and lightweight design. Advanced technology and extensive protection circuitry allow operation with greater efficiency into difficult loads and power conditions. In other words, you get an amazingly powerful and efficient amplifier that won’t break your budget or your back! The 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.
- Features
Features
- Parallel/Bridge/Stereo mode switch
- ACL™ Automatic Clip Limiting protection
- Revolutionary Pro-LITE class D topologry
- Detented input controls
- Combi Neutrik® XLR 1/4” inputs
- Speakon output connectors
- XLR thru connector
- Two channel-independent fourth order crossovers
- Specification
Rated Watts 2 ch x 2 ohms 4800W 20ms Repetitive Burst / 3790W 1% THD Both Channels Driven @ 1kHz Rated Watts 2 ch x 4 ohms 2810W 20ms Repetitive Burst / 2450W 1% THD / 2030W 0.15% THD, Both Channels Driven @ 1kHz Rated Watts 2 ch x 8 ohms 1550W 20ms Repetitive Burst / 1425W 1% THD / 1200W 0.15% THD, Both Channels Driven @ 1kH Minimum Impedance 2 ohms Maximum RMS Voltage Swing 124 volts Frequency Response 20Hz - 25kHz; +0dB, -3dB 20Hz - 20kHz 2 ch x 2 ohms <0.5% @ 3390W 20Hz to 4kHz, Decreasing to 3100W @ 20kHz, Both Channels Driven 20Hz - 20kHz 2 ch x 4 ohms <0.15% @ 1850W 20Hz to 20kHz, Both Channels Driven 20Hz - 20kHz 2 ch x 8 ohms <0.15% @ 1170W 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 Degrees From 20Hz to 20kHz Input Sensitivity 2.25 Volts +/- 3% for 1kHz 4 ohm 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 Current Draw @ 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, ACL, 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 (H x W x D) 3.5" (88.9 mm) x 19" (482.6 mm) x 17" (431.8 mm) Behind Front Panel + 0.6” For Handle Net Weight 14.6 lbs (6.61 kg) Gross Weight 18.4 lbs (8.34 kg) - Documents
Documents
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