Jack Hertz Report post Posted May 25, 2016 The Matrix-6R is a powerful and versatile 6-Voice polyphonic synthesizer of outstanding features and value. Based upon the same revolutionary technology as the Oberheim XPANDER and MATRIX- 12, the MATRIX-6R utilizes many of their sound programming, performance and MIDI features in a compact, low-cost unit. View full synthesizer Share this post Link to post Share on other sites