Fast Recovery circuitry reduces distortion at the edge of clipping and beyond
Two 2nd order, 12dB/octave, Bessel low-cut filters with variable frequency from Off to 170Hz help optimize bass output of your sound system
3rd order, 18dB/octave, Bessel electronic subwoofer crossover with two selectable frequency points
Constant directivity horn EQ/Air EQ with variable frequency from 2k to 6kHz and on/off switch
Limiter with On/Off switch (decreases distortion that may become present when the M1400/1400i is driven at max levels without affecting overall sound levels)
XLR thru outputs
1/4" jacks (M1400i) or Speakon(R) connectors (M1400) and 5-way binding post outputs (both models)