ebay for sale
April: 2015
GK QuadBox US-20 GKP-4 Clone: SOLD OUT! Thanks for your support!
GR-500 24-pin Connector Change: Thanks to Matteo Mannoni who sent another piece of Roland history to share: documentation of the change from the original, pin-type C24 connector to the much more common C24 positive (locking frame) connector.
GR-500 Flashback to 1978!: Vintage Roland magazine advertisement from 1978! At last! The ultimate musical instrument!
GR-700 MIDI Input Documentation: At last! Thanks to Ben Miller for providing some original documenation on this very rare GR-700 modification.

Welcome to the Vintage Roland Guitar Synthesizer Resource Site!

This website is dedicated to providing comprehensive, complete and accurate information on vintage Roland 24-pin guitar synthesizers, controllers, and related accessories.

I started this website more than a decade ago when there was very little information online about vintage 24-pin synths, and a lot of the information I could find was wrong.

Please dig in and learn more about the first sustained effort by Roland Corporation to expand the sonic tools available to guitar players. You will find photos, technical information, service manuals, owners manuals, vintage advertising plus video clips on a variety of cutting-edge gear from the late seventies to early nineties.

This website is possible because of the many GR users who have helped by contributing photos, service bulletins, etc. to make this resource more complete. Feel free to email me if you have questions, corrections, etc. And many thanks to Dempsey Elks who dug through his Guitar Player archives, and emailed me the original Craig Anderton GR-300 article modification article that comprised the original website.