Features
- 300 watts per channel @ 8 ohms stereo, 500/ch@ 4 ohms, 700/ch@2 ohms, 1400 watts @ 4 ohms bridged
- Ultra-low-noise/ low-distortion design
- Limiter with On/Off switch (decreases distortion that may become present when the M?1400/1400i is driven at max levels without affecting overall sound levels)
- 1/4" jacks and 5-way binding post outputs for speaker connections, XLR thru outputs
- Detented gain controls calibrated in dB & volts, with channel status and signal LEDs
Product Description
The Mackie M?1400/M?1400i is a dual channel, "Fast recovery" high output power amplifier that incorporates a number of unique features. Variable low-cut filters on each channel, with a range from off to 170Hz for tighter bass response. A sweepable 2kHz to 6kHz 6db/octave CD Horn EQ. 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. To effectively deal with clipping, an amplifier must be able to recover almost instantaneously. That is the definition of ?Fast Recovery?. Rather than using negative feedback to help control clipping distortion, the M?1400/M?1400i employs a very sparse amount of negative feedback. In addition, a transistor senses when the Baker Clamp is active and activates the internal limiting circuits. This results in no latching, instant recovery from overdriving the amp, and a superior sound.The M?1400/1400i uses a unique T-Design constant-gradient cooling tunnel that draws air in through the front of the amplifier and forces it out through the amplifier's sides. This allows for reduced heat build up and cooler transistor operation.The amplifier has a subwoofer mode that allows you to turn on the built-in subwoofer crossover. When activated, the signals appearing at the left and right inputs are summed, directed to a low-pass filter (63Hz or 125Hz), and routed to both output stages.
