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 ($135.20)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($99.23)

Boss DR-550 MkII Dr. Rhythm 1992-1999 - Black ($114.30)

Boss DR-550 MkII Dr. Rhythm ($122.80)

Boss DR-550 Dr. Rhythm 1989-1991 - Black ($122.80)

Boss DR-550 MkII - Drum Machine - Boxed - Tested ($246.84)

BOSS DR-550 MKII Dr. Rhythm Drum Machine ($133.80)

Boss DR-550 Dr. Rhythm Drum Machine ($86.83)

Owner's Manual for Boss Dr. Rhythm DR-550 1984 ($17.14)

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

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 - flex cable - part no. 23485252 ($5)

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

Power Supply Replacement for Boss Dr-550 Mkii Adapter Uk 9V ($11.89)

Power Supply Replacement for Boss Dr-550 Adapter Uk 9V ($11.89)

Power Supply, 9-volt DC, Roland TB-303, TR-505, TR-606, TR-626, MC-202, SH-101, A-500S, SBX-1, BOSS ($28.53)

Boss DR550 MKII Drum Machine 1990s Japan ($125.74)

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

Ripcord USB to 9V Boss DR-550 Drum machine-compatible power cable by myVolts ($24.80)