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MSM1 Mid Side Machine

The MSM1 functions as a Mid/Side encoder/decoder, enabling the processing of any stereo device connected to the inserts in either stereo mode or Mid/Side mode. In stereo mode (encode/decode off), the MSM1 operates as a completely passive device. When set to MS, it engages the active mid/side circuitry. Both encoder and decoder can be used independently of each other. In typical MS mode, both the encoder and decoder should be active.

The width control allows you to adjust the level of the side channel, altering the stereo image to be more narrow or wide. The gain range from -6.5dB to +3.5dB is done in 23 steps for easy recall. Additionally, the width circuit can be activated or deactivated instantly using a dedicated pushbutton for quick A/B comparisons. The Mid and Side channels can be muted separately, enabling the focused listening of either the Mid or Side channel with their respective dedicated buttons.

Availability and prices

  • The MSM1 is available with a White or Black frontpanel.
  • Leadtime: approx 3 weeks.
  • Price: 1000 euro excluding 21% VAT and shipment.
  • Seperate MS encoder and decoder with dedicated pushbuttons
  • Mid and Side mute pushbuttons
  • Bypassable 23 steps width control (-6.5/+3.5dB)
  • 100% passive when MS section is not enabled.
  • Max input level passive: >+24dBu
  • Max input level MS mode: +24dBu
  • Noise level passive: <118dB(a)
  • Noise level active: <116dB(a)
  • Stereo crosstalk mid/side: ~80dB(a)
  • THD passive: 0.00042% at 1khz (AD/DA limitations)
  • THD MS: 0.00045% at 1khz

  • Input voltage 100 to 240VAC 50/60HZ
  • Power consumption 5 watt
  • Unit size: 1u 19 inch, depth 25cm
  • Weight: approx 2kg