Drum Machines ⇝ Roland ⇝ Roland Boss DR-550

The DR-550 was updated with a larger sound set as the Boss DR-550 MkII. It can store up to 8 songs with a maximum of 160 patterns per song.

Specifications

Year Released: 1990

Number of Pads: 12

Polyphony: 12 notes

Preset Patterns: 64

User Patterns: 64

Tempo Range: 40 - 250 BPM

ROM Size: 48 sounds at 16-bit resolution

Power Consumption: 9v, 90mA or 6 x AA batteries

Weight: 0.51 kg including batteries

Dimensions: 188 mm x 157 mm x 41 mm

User Demo Videos

Rating

File Downloads

Boss DR-550 Manual

Boss DR-550 Service Notes

Items for Sale on Reverb

Boss DR-550 Dr. Rhythm (s/n CB52506, Made in Japan) ($119.39)

Boss DR-550 Dr. Rhythm 1989-1991 - Black ($120.60)

Set of two Boss DR-550 Dr. Rhythm 1989-1991 - Black ($121.82)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($86)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($74)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($90)

Boss DR-550 MkII Dr. Rhythm Drum Machine ($85)

Boss DR-550 Dr. Rhythm Main Board ($47.51)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($200)

Boss DR-550 MkII Dr. Rhythm [May 1995] ($79)

Boss DR-550 Dr. Rhythm 1989-1991 - Black ($210.48)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($125)

Boss DR-550 MkII Dr. Rhythm ($127)

Boss DR-550 "Dr. Rhythm" Drum Machine ($90)

Boss • DR-550 Dr. Rhythm (1989) *Complete in BOX* ($181.51)

Boss DR-550 Dr. Rhythm 1989-1991 - Black ($181.51)

Boss • DR-550 MkII Dr. Rhythm (1992) *Complete in BOX* ($181.51)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($242.42)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($152.28)

VINTAGE Boss Dr. Rhythm DR-550 Drum Machine ($77)

Boss DR-550 Dr. Rhythm MKII 1989-1991 - Black ($122.67)

Boss DR-550 Dr. Rhythm 1989-1991 - Black ($70)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($80)

Boss DR-550 Drum Machine ($99.99)

Boss DR-550 Drum Machine ($89.99)

Boss DR-550 Drum Machine ($124.99)

Boss DR-550 Drum Machine ($89.99)

Boss DR-550 Dr. Rhythm 1989-1991 - MINT ($121.82)

Boss DR-550 ($182.73)

BOSS DR-550MKII - Drum Machine w/ Original Box - Very Good Condition ($120.40)

Boss Dr. Rhythm 550 MKII 1990 - Black ($219.95)

Boss Dr. Rhythm DR-550 Drum Machine DR550 Doctor Beat U248670 ($79.99)

Owner's Manual for Boss Dr. Rhythm DR-550 1984 ($16.84)

BOSS Dr. Rhythm DR-550 Drum Machine with Box! R121 ($129.99)

Boss DR-550 parts - tempo LED - part no. 15029324 ($5)

Boss DR-550 parts - flex cable - part no. 23485252 ($5)

Boss DR-550 parts - power switch - part no. 13159168 ($10)

Boss DR-550 parts - tape save/load socket - part no. 13449428 ($10)

Boss DR-550 parts - 12MHz crystal - part no. 15299128 ($10)

Boss DR-550 MKII Drum Machine - Black ($218.50)

Power Supply Replacement for Boss Dr-550 Adapter Uk 9V ($11.67)

Power Supply Replacement for Boss Dr-550 Mkii Adapter Uk 9V ($11.67)

Boss DR550 Dr Rhythm 1991-1999 - Black ($75)

Boss DR-550mkII ($230.24)

Power Supply, 9-volt DC, Roland TB-303, TR-505, TR-606, TR-626, MC-202, SH-101, A-500S, SBX-1, BOSS ($24.36)

9V Power Supply for Boss DR-550 Dr. Rhythm, DR-550 MKII Dr. Rhythm ($21.99)