The Celto Acoustique SD7000 is a high-power, lightweight stereo amplifier built for touring, installations, and professional live sound. It uses a high-efficiency SMPS (switch-mode power supply) with Active PFC and a Class D output stage to deliver strong power performance in a compact 1U 19″ format.
Key Features
- TrueSound Class D output stage with high-current MOSFETs
- LLC Resonant PULSAR SMPS + Active PFC architecture for power efficiency and stability
- Zero-Attack J-FET limiters, studio-grade preamp design
- Operating Voltage: 90 – 260 V AC (universal)
- Input Connectors: 2 × Balanced Neutrik XLR (plus feed-through)
- Output Connectors: 2 × Neutrik SpeakON NL4MP per channel (stereo mode)
- Operational Modes: Stereo, Parallel, Bridge (with mode selector)
- Protection Features: Over-current, overload, over-temperature, under/over-voltage, short circuit protection
Power & Performance
Load / ModeOutput Power (RMS, 1kHz, 1% THD)8 Ω (per channel) | 2 × 2000 W
4 Ω (per channel) | 2 × 3500 W
2 Ω (per channel) | 2 × 4000 W
- Frequency Response: 5 Hz – 20,000 Hz (±0.1 dB)
- THD + Noise: <0.03% (typical) / <0.09% under load
- Signal-to-Noise Ratio: ~107 dB (A-weighted)
- Crosstalk (1 kHz): > 75 dB
- Input Impedance: ~20 kΩ (balanced)
- Maximum Input Level: +20 dBu
- Slew Rate: >60 V/µs
- Damping Factor (8 Ω, 500 Hz): >800
- Gain (Voltage): ×50 (34 dB nominal)
