Crest Audio CLh 2500 Power Amplifier

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Crest Audio CLh 2500 High Power Class D Contracting Amplifier (Discontinued)

Description

Details

CLh series amplifiers feature an ultra-high efficiency amplifier output circuit that reduces weight while increasing output power, reliability and thermal efficiency. The CLh Series includes Crest Audio’s exclusive ACL™ (Active Clip Limiting), which automatically reduces gain at the onset of clipping to prevent amplifier and load damage; over-current protection; DC voltage; channel active and temperature warning. Additional features include a lightweight switch-mode power-supply, remote turn-on, sequential turn-on and a switchable, built-in low-cut filter.

Features

Features

Ultra-high efficiency, servo-controlled, class-D power amplifiers that deliver high power through two channels
CLh 2500 produces 1250W per channel continuous at 70.7V
Crest Audio’s exclusive ACL™ (Active Clip Limiting)
Over-current protection
DC voltage
Channel Active and temperature warning
Light-weight switch-mode power supply
Remote turn-on
Sequential turn-on
Switchable, built-in low-cut filter

Specification

Rated Watts 2 ch x 4 Ohms	1985 watts / 81 volts with 20ms Repetitive Burst 1470 watts / 77 volts at 0.15% THD Both Channels Drive at 1kHz
Rated Watts 2 ch x 8 Ohms	1175 Watts / 97 Volts With 20ms Repetitive Burst 880 Watts / 84 Volts At 0.15% Thd Both Channels Drive At 1khz
Minimum Load Impedance	4 ohms
Maxmium RMS Voltage Swing	105 volts
Frequency Response	20Hz - 22kHz; +/-0.5dB at 1 watt
20Hz - 20kHz 2ch x 4 ohms	<0.15% @ 1400 watts 20Hz to 10kHz Decreasing to 1350 watts @ 20kHz, Both Channels Driven
20Hz - 20kHz 2ch x 8 ohms	<0.15% @ 860 watts 20Hz to 4kHz Increasing to 1000 watts @ 20kHz Both Channels Driven
Input CMRR	> -75 dB at 1kHz
Voltage Gain	x 40 (+32dB)
Crosstalk	>-60dB @ 1kHz @ 700 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 - 1 kHz @ 8 ohms
Input Sensitivity	1.92 volts +/- 3% for 1 kHz 4 ohm Rated Power 2.1 volts +/- 3% for 1 kHz 8 ohm Rated Power
Input Impedance	20 Kilohms Balanced and 10 Kilohms Unbalanced
Current Draw @ 1/8 in VA (watts)	920 (525) @ 4 ohms, 625 (335) @ 8 ohms
Current Draw @ 1/3 in VA (watts)	1880 (1200) @ 4 ohms, 1200 (715) @ 8 ohms
Idle Consumption	195VA, 90 watts
Cooling	3 Temperature Dependent Variable Speed Fans
Controls	1 Rear Panel Attenuator and Select Switch for 70Hz, High Pass Filter Per Channel
Indicator LEDs	Five LED indicators Per Channel: Active, Signal, DDT, Temperature and DC
Protection	Thermal, DC, Subsonic, Incorrect Loads, Under and Over Voltage
Connectors	3.81mm 12 Position Input, 5mm 4 Position Sequential, 10 Gauge Wire 4 Postion Output, IEC AC Power
Construction	0.0062" Thick Aluminum
Dimensions (H x W x D)	3.48" (88.39 mm) x 19" (482.6 mm) x 20.30" (515.62 mm) Mounting Depth: 19.70" (500.38 mm) behind front rack ears
Net Weight	14.1 lbs (6.4 kg)

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