Roland MC-303 Groovebox
The original groovebox for dance/techno! It's got 303, 808, 909, Jupiter, and Juno sounds. It is a sequencer arranger with looks inspired by the original 303's and 808's... Not to mention it includes real-time Filter Cutoff, resonance, panning and arpeggiator. With this box alone you can become a techno music maker!!! It sounds pretty good and has an unbeatable price (around $500)!!!! Though it's been swept aside by the MC-505, JX-305, EG-101 and Yamaha RM1x, it's still a good entry-level machine for those of you on a budget or just starting out. It has been used by ATB.
- Demos & Media
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Video 1 - Hard Talk (MC 303)
Video 2 - Muse’s Muses (Roland MC-303)Audio Clip 1 - ample grooves and loops and an arpeggios with filter tweaking. From the Future Music CD, isue 47.
Manual - Roland has made manuals for most of their products available as free PDF downloads.
- Specifications
- Polyphony - 28 voices
- # of Tones - 448
- # of Drum Sets - 12 (inc. 808, 909)
- # of Instruments - 16 part multitimbral
- Effects - Reverb, delay, chorus and flange
- Arpeg/Seq - Sequencer : 8 tracks, 10 songs, 120 preset & 50 user patterns.
Arpeg: 200 RPS phrases - Keyboard - 12 buttons
- Control - MIDI
- Date Produced - 1996
- Websites of Interest
- Resources & Credits
Images from Perfect Circuit Audio.
Errors or Corrections? Send them here.


i recently bought a second hand mc - 303 groovebox and i received it in the post. i used it for 3 hours everything was working ok i was able to use the samples in it and to work out a tune. but then when i turned it off and went to turn it back on i got this on the screen,
CURRENT - (NC) - NEXT - (303)
it doesn't let me go through the samples or do anything it is just stuck on CURRENT - (NC) - NEXT - (303), i have also tried to do a factory reset and it won't let me do it either.
any help on this would be much appreciated
thanks
The service manual PDF is linked from the wikipedia page for the MC-303. I got the replacement switch from digikey. Part number: P12217SCT-ND. I ordered more than I needed in case more go :)
The Yamaha RMX-1 is worse for screws and that has very bad buttons. The 303 is a breeze in comparison.