OPUS (OP-1 mod suite)
Mod suite for the original OP-1: new engines, double effects, scales, tape undo, themes
- Original OP-1 with the official 246 firmware file (op1_246.op1)
About
OPUS is a mod suite for the original OP-1 on firmware 246, built in the browser from your own official firmware file. Version 1 adds two synth engines (a "dimension" engine and a guitar amp with a tuner), new effects (bitcrush, chorus, plate) plus a second effect behind every slot, scales and chords, tape undo/redo, preset rename and overwrite-save, 100 sampler presets, and custom colours, themes and start-up picture. It's designed to be easy to leave: presets it can't play are left untouched, and a built-in cleaner prepares your data for stock firmware or op1r. The author also runs a mod-ID registry and plans OPUS 2 as a plugin manager where mods are files you drop on the OP-1.