Drum MachineBOSS ·

BOSS DR-550

PatchMyGear connector template for the BOSS DR-550.
Vintage Dr. Rhythm drum machine with stereo outputs, headphone output, cassette tape save/load, MIDI In, and external power input.

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Audio Output

3 ports

Audio Output ports
Port	Connector	Channel mode	Level	Balance
R Out	1/4" / Jack	Mono		Unbalanced
L (Mono) Out	1/4" / Jack	Mono		Unbalanced
Headphones Out	1/8" / Jack	Stereo	Headphone	Unbalanced

Audio Bi-directional

1 port

Audio Bi-directional ports
Port	Connector	Channel mode	Level	Balance
Tape Save/Load	Connector / Jack	Stereo		Unbalanced

Midi Input

1 port

Midi Input ports
Port	Connector	Channel mode
MIDI In	DIN-5 / Jack	1ch

Power Input

1 port

Power Input ports
Port	Connector	Channel mode
AC Adaptor In	Connector / Jack	1ch

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