BOSS

DR-550

DRUM MACHINE

Description

The Boss DR-550 Dr. Rhythm is a compact digital drum machine introduced in the late 1980s that provides 16-bit sampled percussion sounds and multi-voice polyphony for rhythm programming. It features twelve trigger pads alongside pattern storage capabilities and MIDI integration to serve as an accessible practice tool or studio rhythm source. The unit houses a selection of acoustic and electronic drum voices derived from professional hardware libraries. Users can construct custom rhythm tracks utilizing step-time or real-time recording modes with adjustable parameters for individual sound tuning. Portable operation is supported via internal battery power or an external direct current adapter. The hardware layout offers a streamlined interface designed for straightforward operation across various musical styles.

Media

Videos

Demo by Lachie Bradshaw (EN)

Manuals

Manual (EN)