High-efficiency 1U, four-channel Class-D amplifier for touring and installs. Select Stereo/Parallel/Bridge modes, feed balanced XLR, and drive speakers via Speakon with full protection and status metering.
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Serious output: 4×1000W @ 8Ω; 4×2000W @ 4Ω; bridge up to 2×4000W @ 8Ω.
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Compact & efficient: 1U chassis, >90% efficiency, SMPS with PFC for cool, reliable operation.
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Pro I/O: 4×XLR line inputs and 4×Speakon speaker outputs with front-panel level/metering.
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Selectable modes: Stereo, Parallel, or Bridge with high damping & low THD for tight control.
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Comprehensive protection: Soft-start, DC, short, overload, clip/distortion-limit, overheat.
Technical Specifications
| Parameter |
Value |
| Brand / Model |
CMX Audio / CX-41000 (4-channel) |
| Amplifier Class |
Class-D, SMPS with PFC |
| Work Modes |
Stereo, Parallel & Bridge (selectable) |
| Rated Output @ 8 Ω |
4 × 1000 W |
| Rated Output @ 4 Ω |
4 × 2000 W |
| Bridge Output @ 8 Ω |
2 × 4000 W |
| Efficiency |
> 90% |
| Frequency Response |
20 Hz – 20 kHz, ±0.5 dB (1 kHz, 8 Ω, 1/8 power) |
| THD |
< 0.035% (1 kHz, 8 Ω, 1/8 power) |
| Damping Factor |
> 600 |
| S/N Ratio |
> 106 dB |
| Crosstalk |
> 60 dB |
| Input Sensitivity |
32 dB / 1 V / 0.775 V (selectable) |
| Input Impedance |
20 kΩ (balanced), 10 kΩ (unbalanced) |
| Connectors |
4 × XLR line inputs; 4 × Speakon speaker outputs |
| Protections |
Soft start, DC, short circuit, overload, clip/distortion-limit, overheat |
| Cooling |
Temperature-controlled fans, front-to-rear airflow |
| Power Supply |
AC 90–264 V, 50/60 Hz |
| Dimensions (W×D×H) |
484 × 380 × 44 mm (1U) |
| Weight |
≈ 11.0 kg |
