The DR-550 Mk II is an update to the DR-550 with a larger and higher-quality sound set. It can store up to 8 songs with a maximum of 160 measures per song.
Year Released: 1992
Number of Pads: 12
Polyphony: 12 notes
Preset Patterns: 64
User Patterns: 64
User Songs: 8
Tempo Range: 40 - 250 BPM
ROM Size: 91 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
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