SPECIFICATIONS: * Power Output: 1kHz Power 2-ohm Dual (per ch) 750W 4-ohm Dual (per ch) 500W 8-ohm Dual (per ch) 400W 4-ohm Bridge 1,600W 8-ohm Bridge 1,450W * Sensitivity (volts RMS) for full rated power at 4ohms: 1.4V * Frequency Response (at 1 watt): 22 Hz to 22 kHz: +/-1 dB * Phase Response (degrees at 1 watt, 20 Hz to 20 kHz): =5*, -18* * Signal-to-Noise Ratio: A-weighted, below rated power: > 102 dB. 22 Hz to 22 kHz, below rated power: > 87 dB * Total Harmonic Distortion (THD) at full bandwidth power, from 20 Hz to 20 kHz: 0.5% * Intermodulaton Distortion (IMD): (60 Hz and 7 kHz at 4:1) from full rated output to -40 dB: < 1% * Damping Factor (8 ohm) 10 Hz to 400 Hz: >200 * INPUT/OUTPUT: Input Connectors: XLR-1/4" combo connectors: One per channel, 3-pin female XLR connector and TRS 1/4" phone jack accept balanced or unbalanced signals. 3-pin Phoenix-style connectors (2-channel models only): One per channel, accepts balanced or unbalanced signals * Input impedance (nominal) balanced, unbalanced: 20 k ohms, 10 k ohms * Output Connectors: Balanced XLR connectors (2-channel models only): One per channel, 3-pin male XLR connector in parallel with XLR-1/4" combo and Phoenix-style input connectors for daisy-chain operation. 5-way binding post output connectors: one pair per channel; accept banana plugs, spade lugs or bare wire. 4-pole Speakon output connector: (2-channel models only): One connector per channel. Accepts a 4-pole Speakon connector