Crest Audio CPX 4 Power Amplifier
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Aprašymas
Aprašymas
Crest Audio CPX 4 Power Amplifier
The Crest Audio CPX 4 is a two-channel power amplifier.
Designed for passive loudspeakers, it supports mobile PA rigs and fixed installations. Separate stereo channels can be combined in bridged mono when a single higher-power output is required.
Gain Comparator Limiting reduces gain as clipping approaches. A rear switch enables or defeats GCL, while front LEDs show signal, limiting, thermal protection and power status.
Each channel has a switchable 100 Hz crossover and 40 Hz low-cut filter. Line-level outputs support additional amplification and separate frequency bands.
Main Features
- Stereo and bridged mono operation adapt the amplifier to two-channel or single-load systems.
- Balanced XLR/TRS inputs accept line-level mixer signals.
- Twist-lock speaker connectors secure output cables.
- Independent front attenuators set the level of each channel.
- GCL limiting helps prevent severe clipping at high signal levels.
- Short-circuit, thermal and DC protection safeguard the amplifier and its load.
- Turn-on and turn-off muting reduce switching transients.
- Temperature-controlled cooling responds to the amplifier’s thermal load.
Technical Specifications
- Channels: 2
- Amplifier Class: H
- Power, 2 Ω: 800 W per channel
- Power, 4 Ω: 1600 W per channel
- Power, 8 Ω: 1005 W per channel
- Bridge Power: 3200 W / 8 Ω; 1600 W / 4 Ω
- Power Test Conditions: 1 kHz, 1% THD, repetitive 20 ms bursts
- Minimum Load Impedance: 2 Ω per channel; 4 Ω bridged
- Frequency Response: 12–35000 Hz (+0 / -2 dB, 1 W)
- Input Sensitivity: 1.95 V RMS (rated power, 4 Ω)
- Input Impedance: 10 kΩ, balanced
- Voltage Gain: 32 dB (×40)
- Signal-to-Noise Ratio: >88 dB (A-weighted, rated power, 8 Ω)
- Damping Factor: >400:1 (8 Ω, 20–2000 Hz)
- Maximum Channel Voltage: 97 V RMS
- Inputs: 2 × XLR / 6.3 mm TRS
- Signal Outputs: 2 × 6.3 mm High Out
- Speaker Outputs: 2 × 4-pin twist-lock connectors; bridge via channel A
- Crossover: 100 Hz, 24 dB/oct., Linkwitz-Riley
- Low-Cut Filter: 40 Hz, 12 dB/oct.
- Operating Modes: stereo, bridged mono
- Cooling: 2 temperature-controlled fans
- AC Power: selectable 115 V or 220–240 V, 50/60 Hz; IEC
- Dimensions (H × W × D): 89 × 483 × 413 mm
- Net Weight: 19.5 kg
What’s Included
- Crest Audio CPX 4 power amplifier, 1 unit
- Region-appropriate mains power cord
Who Is It For
For passive PA loudspeakers and subwoofers in live sound or installed systems. Match total loudspeaker impedance to the selected operating mode; the listed power figures use the manufacturer’s burst measurement conditions.
Can’t find the Crest Audio product you are looking for?
Contact us: info@stageiq.lt or +370 636 55536.

