Traded in at our Gladesville store, tested and working well. Contains the MN3205 IC. - The Boss DM-2 was a bucket-brigade analog delay from the 1980's. The DM-2 originally employed the famous MN3005 BBD to produce between 30 - 330ms of delay. This chip was replaced with the MN3205 in the later models.
In order to produce the longer delay times of the DM-2, Boss engineers needed to limit the frequency response of the repeats. This resulted in the warm, rounded delay tones that make the pedal so famous.