Mackie M1400/M1400i Architects's Specs (M1400) - Page 3

3 14. OVERALL MINIMUM SPECIFICATIONS. In addition to specifications previously cited, the amplifier shall meet or exceed the following performance criteria: Continuous Average Output Power, both channels driven: M•1200 225 watts per channel into 8 ohms from 20Hz to 20kHz, with no more than 0.025% THD 400 watts per channel into 4 ohms from 20Hz to 20kHz, with no more than 0.050% THD 600 watts per channel into 2 ohms from 20Hz to 20kHz, with no more than 0.095% THD Bridged mono operation: 800 watts into 8 ohms from 20Hz to 20kHz, with no more than 0.05% THD 1200 watts into 4 ohms from 20Hz to 20kHz, with no more than 0.095% THD Maximum Power at 1% THD (per IHF-A-202): 250 watts per channel into 8Ω 425 watts per channel into 4Ω 640 watts per channel into 2Ω 850 watts into 8Ω bridged 1280 watts into 4Ω bridged M•1400 250 watts per channel into 8 ohms from 20Hz to 20kHz, with no more than 0.012% THD 425 watts per channel into 4 ohms from 20Hz to 20kHz, with no more than 0.025% THD 630 watts per channel into 2 ohms from 20Hz to 20kHz, with no more than 0.050% THD Bridged mono operation: 850 watts into 8 ohms from 20Hz to 20kHz, with no more than 0.025% THD 1260 watts into 4 ohms from 20Hz to 20kHz, with no more than 0.050% THD Maximum Power at 1% THD (per IHF-A-202): 280 watts per channel into 8Ω 480 watts per channel into 4Ω 700 watts per channel into 2Ω 960 watts into 8Ω bridged 1400 watts into 4Ω bridged Note: Power ratings are specified at 120VAC (U.S. and Canada) and 240VAC (Export) line voltages. Power Bandwidth: 20Hz to 70kHz (+0, -3dB) Frequency Response: 20Hz to 40kHz (+0, -1dB) 10Hz to 70kHz (+0, -3dB) Distortion: THD, SMPTE IMD, TIM < 0.025%@8Ω < 0.050%@4Ω < 0.150%@2Ω Signal to Noise Ratio: > 107dB below rated power into 4 ohms Channel Separation: > 80dB@1kHz Damping Factor: > 350 from 0 to 400Hz Input Impedance: 20kΩ balanced bridging Input Sensitivity: 1.23 volts (+4dBu) for rated power into 4 ohms Gain: 30.25dB (32.5V/V) Maximum Input Level: 9.75 volts (+22dBu) Rise Time: < 4.4µs Slew Rate: Voltage Slew Rate > 50V/µs > 100V/µs bridged Current Slew Rate > 32A/µs at 2Ω TM 3 ®