Boss DM-2 MN3205 Vintage MIJ 1982

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Boss DM-2 MN3205 Vintage MIJ 1982

What The Say...

This analog delay pedal is able to produce delay times ranging from 30 to 330 Milliseconds. It’s got three dials with adjustments for Repeat Rate, Intensity, and Echo. This effect draws a lot of current so not all power supplies are able to power up this pedal. The vintage analog DM-2 is a very popular effect and prices are usually very high for a beat up but working pedal.

Version differences 
There are at least 3 different versions of the DM-2. The first version was using the MN3005 BBD. This was soon changed to the low current version of the same circuit called MN3205. It is worth noting that the MN3005 has a SN ratio of 75 dB while the MN3205 is a little more noisy with its 67dB. The MN3205 only produces 0.8% distortion compared to 1% for the MN3005.


  • Controls: Repeat Rate, Echo, Intensity
  • Connectors: Input, Output, AC Adaptor
  • Current Draw: 11 mA (DC 9V)
  • Weight: 450g.
  • Input Impedance: 470kOhm
  • Output Impedance: Over 10kOhm
  • Residual Noise Level: -100dBm (IHF-A)
  • Delay Time: 20ms-300ms
  • Recommended AC Adaptor: ACA Series


  • Black – Made In Japan
  • Green – Made In Japan

The DM-2 was sold from June 1981 to February 1984. This pedal chip was made in 1982. It's very likely that the pedal was completed in 1982 as well.