Alesis MultiMix 12R
12-Channel Rack-Mount Mixer with 8 Mic/Line and 2 Stereo In


The Alesis MultiMix 12R is a high-quality, rack-mountable 12-input, stereo output audio mixer. It is designed to handle eight microphones, two stereo line inputs, and to route signals to and from external effect processing devices. As a basic, easy-to-understand mixer, it can be used in a wide variety of applications from sound reinforcement to multitrack recording. It may also be used as an accessory or submixer to a larger console.

Alesis MultiMix 12R Features:

  • Ultra-affordable 12-channel mixer in a 3RU rack
  • 8 high-gain mic/line (XLR and 1/4" balanced) inputs with phantom power, 2 stereo balanced 1/4" line inputs
  • 2 aux sends (pre- and post-fader), stereo aux return, 8 1/4" inserts, 2-track stereo RCA in and out
  • Separate 1/4" balanced main and monitor outs, front-panel headphone out
  • Pan control, peak indicator, and 60mm fader on each channel
  • 2-band high/ low shelving EQ per channel
  • 10-segment LED stereo meters


  • Front-panel (top down): 8 mic/line channels and 2 stereo channels with trim, 2-band EQ (high shelving at 12kHz, low shelving at 80Hz), aux send 1(pre-fader), aux send 2 (post-fader), pan/balance, and 60mm fader
  • Front-panel other: 60mm stereo master fader. Stereo aux return level. Headphone jack with level and master/tape switch. Stereo 10-segment LED meters. Power and phantom power LEDs


  • All 1/4" TRS except as noted: Mic in x 8 (XLR), line in x 12, channel insert x 8, aux send x 2, stereo aux return, stereo main out, stereo monitor out, headphone out. Stereo tape in and master out (RCA)

Alesis MultiMix 12R Specifications:

  • Frequency response: 20Hz–50kHz ±0.5dB
  • Dynamic range: 108dB. Distortion: <0.005% THD+N (mic/line to L/R master out)
  • Maximum gain: 70dB (mic in to L/R master out)
  • Headroom: 24dB
  • Power: 120V AC internal transformer
  • Dimensions (HxWxD): 5.25" x 19" x 4.25"; 3U rackmount
  • Weight: 8 lbs.
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