Here is a working classic vintage synth. Able to play Korg T1 sounds, Two sound cards included. Factory defaults loaded in now - new battery and always has been in my studio for years and years. I am the original owner. Non smoking and wonderful sounding. Multi individual outs, L-R outs, MIDI in/out etc... way cool piece of heritage and vintage sounds. The Korg M1REX is a pressure and velocity sensitive 2U rack (8 channel multitimbral) single (16 voice) or dual (8 voice) oscillator synthesizer, featuring 190 waveforms and 85 drums (16 bit, 4MW, more via card), dedicated pitch and filter LFOs, dual stereo effects processors (33 effects), stereo and dual individual outputs, 8 track sequencer (4400 or 7700 events, depending on program memory), and MIDI. Each oscillator channel features a low pass filter and dedicated (pitch, filter, amplifier) 3-stage envelopes. The 50 or 100 (depending on sequencer memory) user editable presets can be saved via MIDI SysEx or memory card.