The power amplifier shall meet or exceed the following performance criteria. Input sensitivity for rated output: 1.4V. Rated output with both channels driven in Dual mode into 8 ohms (1 kHz): 600 watts per channel at 0.15% THD. Rated output with both channels driven in Dual mode into 4 ohms: 900 watts per channel at 0.15% THD. Rated output with both channels driven in Dual mode into 2 ohms (1 kHz): 1,200 watts per channel at 0.5% THD. Bridge-mono output power into 8 ohms (1 kHz): 2,100 watts at 0.15% THD. Bridge-mono output power into 4 ohms (1 kHz): 2,500 watts at 0.5% THD. Frequency Response at 1 watt, 22 Hz to 22 kHz: ± 1 dB. Signal to Noise Ratio below rated power: > 108 dB A-weighted. Total Harmonic Distortion at full rated power from 20 Hz to 20 kHz: < 0.5%. Damping Factor: > 200 from 10 to 100 Hz. Crosstalk (below rated power): > 67 dB at 1 kHz and > 62 dB at 20 kHz. DC Output Offset (shorted input): < ± 75 mV. Input Impedance (nominal): 20 kilohms balanced, 10 kilohms unbalanced.
The power amplifi er shall meet or exceed the following performance criteria. Input sensitivity for rated output: 1.4V (except for rated output at 0.5% THD with one channel driven in Dual mode into 4 ohms). Rated output with both channels driven in Dual mode into 8 ohms (1 kHz): 650 watts per channel at 0.15% THD. Rated output with both channels driven in Dual mode into 4 ohms (1 kHz): 1,100 watts per channel at 0.15% THD. Rated output with both channels driven in Dual mode into 2 ohms (1 kHz): 1,600 watts per channel at 0.5% THD. Bridge-mono output power into 8 ohms (1 kHz): 2,300 watts at 0.15% THD. Bridge-mono output power into 4 ohms (1 kHz): 3,000 watts at 0.5% THD. Frequency Response at 1 watt, 22 Hz to 22 kHz: ± 1 dB. Signal to Noise Ratio below rated power: > 109 dB A-weighted, > 107 dB (22Hz to 22 kHz fi lter). Total Harmonic Distortion at full rated power from 20 Hz to 20 kHz: < 0.5%. Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1: < 0.5% from full rated output to –30 dB and < 1.0% from full rated output to –40 dB. Load impedance: 2-8 ohms stereo and 4-8 ohms bridge mono. Voltage gain (at maximum level setting): 47.4:1 (33.5 dB). AC Line Voltage and Frequency Confi gurations Available (± 10%): 120 VAC/60 Hz and 240 VAC/50 Hz. Damping Factor: > 200 from 10 to 100 Hz. Crosstalk (below rated power): > 65 dB at 1 kHz and > 45 dB at 20 kHz. DC Output Offset (shorted input): < ± 75 mV. Input Impedance (nominal): 20 kilohms balanced, 10 kilohms unbalanced.
The M•1400/M•1400i is rated at a continuous output of 250 watts per channel into 8Ω, 425 watts per channel into 4Ω and 630 watts into 2Ω. In bridge mode the M•1400/M•1400i is rated at 850 watts into 8Ω and 1260 watts into 4Ω. Variable low-cut filters on each channel, with a range from off to 170Hz, enable tighter bass response and a Constant Directivity Horn EQ improves high-frequency reproduction. The CD Horn EQ is 6 dB/octave and its “knee” position is sweepable from 2kHz to 6kHz. the built-in limiter is channel independent and helps eliminate clipping. Inputs are balanced/unbalanced 1/4" and XLR, and XLR thru connectors allow the full-range signal to be routed to another M•1400/M•1400i. Speaker connections on the M•1400 are Speakon® and binding posts, while speaker connections on the M•1400i are 1/4" and binding posts.