Yamaha DD-14 with 25 Point Patch Bay Mod.

Rare 1992 MIDI drum machine with a custom 25 point patch bay. This modification generates an array of original sounds, effects and rhythmic variations. Making a single connection on the patch matrix can dramatically alter the output but applying multiple connections produces an increasingly complex, sometimes aleatoric range of fractured, reversed, tonal, bit crushed, flanged, distorted, aliasing and delayed effects, 16-bit arcade sounds and digital noise, alternative rhythmic patterns and additional accents. The five included patch cables can also be stacked for further sonic manipulation.

The patch bay affects the 100 tempo adjustable onboard rhythms and tracks in addition to the pads and scraper which produce some great degraded digital effects and percussion hits.

Features:

2 x on board speakers + 1/4" stereo output.
8 velocity sensitive drum pads.
A 'scraper' ribbon controller for the performance of preset instruments, scratching and rolls.
100 preset rhythms with instrumental accompaniment options.
75 PCM percussion and effects sounds.
30 percussion sets.
Selectable roll, flam and echo effects.
Auto bass/ chord function.
Three user song memory.
608 mm x 281 mm x 105 mm.

MIDI In, Out.

Takes 9v power or batteries- no battery cover but they stay in.

Demo to follow.