| utput power(1kHz, THD+N =1%) | 2×400W@8Ω stereo
2×600W@4Ω stereo 2×800W@2Ω stereo 1200W@8Ω bridge 1600W@4Ω bridge |
| A-Guard Protection System | DC protection，Short circuit protection，Smart overheat management，Overheat protection，Input overload protection，Output overload protection，Soft startup protection，Limiter protection |
| Working mode | Stereo/Parallel/Bridge |
| Crossover | / |
| LOW FREQ ENHANCED | / |
| Input Connectors | Male XLR & Female XLR |
| Output Connectors | Speakon 4Pin |
| Input Impedance | Balanced 20kΩ / Unbalanced 10kΩ |
| Maximum input voltage | ≥20dBu |
| Sensitivity | 0.775V / 32dB / 26dB |
| Frequency Response(1W 8Ω stereo) | 20Hz-20kHz(±0.5dB) |
| Crosstalk(1kHz, Rated power 8Ω，A weighted) | ≥65dB |
| S/N Ratio(1kHz & 8Ω)) | ≥108dB |
| Damping Factor (1kHz & 8Ω) | ≥500 |
| Intermodulation Distortion(60Hz:7kHz=4:1,half power) | ≤0.05% |
| THD+N(1kHz，8Ω half power A weighted) | ≤0.05% |
| Output Circuitry | Class H+ |
| Power Supply | 110V~/230V~(±10%,50/60Hz) |
| Power Consumption ((1/8 output power 4Ω) | 415W |
| Rack Space | 2U |
| Cooling | Back to front venting, mandatory cooling |
| Dimension (W×H×D) | 483×88×451mm |
| Net Weight | 18.0kg |
PRO4.0
Class H+ amplifier
PRO4.0 offers 400 watts at 8Ω stereo. Each channel works at 2Ω to satisfy all requirements.
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