Roland TR-909 tune+decay mods, firmware upgrade

Posted by in equipment, mods & repairs, News, Studio

Duration 6h for Mods + OS update: 350€ +Parts (EPROM) and postage (german clients +19%)

Modded this little Roland TR-909 together with Claudio of discrete-audio-solutions back in the days. All mods are switchable to „stock“ sound (except clap noise).

-BD-Tune, BD-Overdrive, BD-Decay Range Extension Switch
-Clap Noise Volume
-Rimshot Pitch variations switch
-Hihat Tune


Also exchanged the eprom to the latest firmware (V4) with stable MIDI timing. Thanks to curetronic for the steady desoldering-hand:)