SQ8800

SD-SQ series · Amplifiers

Frequency Response (−1 dB): 10 – 25 000 Hz
Weight Net: 6 kg

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Overview

Quad-channel touring precision—the CELTO SQ8800 offers 4× 1300W 8Ω / 4x 2200W 4Ω With refined control for critical applications. Designed for line arrays, multi-zone systems, and high-fidelity reinforcement. Higher slew rate (>60 V/µs) and damping (>800) deliver lightning transients and grip. MUSE® preamp and J-FET limiters preserve dynamics without aggression. The exclusive Virtual Class-A circuit reaches warmth and precision audiophile tonality. Robust SMPS with multiple transformers handles extreme loads effortlessly. NEUTRIK connectors throughout for professional-grade reliability. At 1U 6 kg, it combines brute force with touring practicality. The SQ8800 brings flagship performance to quad configurations.

Specifications

Channels: 4
RMS Power 8Ω (per ch., EIA 1 kHz 1% THD): 1300W
RMS Power 4Ω (per ch.): 2200W
RMS Power 2Ω (per ch.): 2000W
Bridge 8Ω: 2x 4400W
Bridge 4Ω: 2x 4000W
Frequency Response (−1 dB): 10 – 25 000 Hz
Typical THD: < 0.03 % at 1W / < 0.09 % at half power
Signal to Noise Ratio (A-weighted): > 107 dB
Crosstalk (1 kHz): > 75 dB
Slew Rate: > 60 V/µs
Damping Factor (8Ω): > 800 (internal)
Voltage Gain: 34 dB (50 times voltage)
Input Impedance: 20 kΩ balanced
Preamp: Ultra-low noise and distortion circuit with MUSE® Fine Gold capacitors and TrueRMS JFET VCA limiters
Output Stage / Class: Proprietary High-Speed High-Current 4th generation discrete Class D (92% efficiency)
Power Supply: Switch mode with active PFC (Universal AC input from 90 to 260V)
Cooling: Temperature regulated long life brush-less fans, front to back airflow
Power Connector: SEETRONIC PowerCon
Input Connectors: 4x Balanced NEUTRIK XLR
Output Connectors: 4 ×NEUTRIK SpeakON NL4MP
Dimensions (W×H×D) mm: 482×45×281 (1U)
Weight Net: 6 kg