The DC-3 is the successor of the Dimension C (DC-2) pedal but despite the name similarity, it's quite different. The DC-3 is a digital device while the DC-2 uses analog electronics. The DC-3 doesn't have the presets of the DC-2 but instead you can adjust the sound with the controls common to the other Boss chorus pedals. The chorus produced is a bit different from other chorus units. Most chorus effects adds vibrato as the depth of the effect is increased. The DC-3 does this too, but it adds less vibrato than the others. The sound is often described as dimensional, spacial and natural sounding.
Taken from BossareaMade In Japan (from 1988 to 1993)
Original box: NO
Original manual: NO
AC adaptor: NO