Digital stereo mixer

The M-633D is a stereo mixer equipped with 12 input channels (6 monaural inputs and 3 stereo inputs) and 6 output channels (2 monaural outputs, 1 stereo output, and 1 stereo recording output). It has 2 monaural channel and 1 stereo channel bus lines, allowing each input signal to be assigned to each bus line individually. It features digital signal processing functions such as Automatic Resonance Control function, Feedback Suppressor function (FBS), Automatic Clipguard function (ACG), and Automatic Mute function (AUTO MUTE).
It performs advanced acoustic compensation by means of automatic processing without the use of an acoustic measuring instrument. It can be mounted in an EIA component rack (1U size).

  • One-touch operation
  • Automatic resonance control (ARC) with room mode frequency detection and inverse response curve for compensation
  • Automatic clipguard (ACG)
  • Automatic feedback suppressor (FBS)
  • Automatic mute function
  • Clearly, highly articulate sound
  • 1 unit height

  • Specifications
  • Application examples
  • Tender text
  • Downloads
Specifications for product:
Power source

220 - 240 V AC, 50 / 60 Hz

Frequency response

20 Hz - 20 kHz


< 0.03 %

Power consumption

14 W

S/N ratio

90 dB (or more (IHF-A weighted)


6 monaural input channels, selectable independently from 3 types of inputs for each channel: LINE, MIC or PHANTOM, LINE: -10 dBu,2.4 kΩ, MIC: -46 dBV, 2.4 kΩ, PHANTOM: -46 dBV, 2.4 kΩ, supplies +24V DC / 10 mA, electronically balanced, removable terminal block (3 pins), phone jack, 3 stereo inputs (L, R): -10 dBV / 10 kΩ, RCA jack, stereo mini jack


2 monaural outputs: 0 dBV, electronically balanced, removable terminal block (3 pins)
1 stereo output (L, R): 0 dBV, electronically balanced, removable terminal block (3 pins)
1 stereo recording output (L,R): -10 dBV, RCA jack

Signal processing

Automatic resonance control (ARC), feedback suppressor (FBS), automatic clipguard (ACG), automatic mute

Sampling frequency

48 kHz / 24 bits


Aluminium, Steel plate, black


420 x 44 x 341.3 mm (W x H x D)


4 kg

Accessory (included)

Power cord (2 m) x 1, Removable terminal plug (3 pins) x 10, Rubber foot x 4, Rack mounting bracket x 2, Machine screw (M3 x 8) x 6, Rack mounting screw (5 x 12) x 4

Application examples
Tender text