Jon Johnson 208 Report post Posted July 8, 2017 The SPV-355 is a new non keyboard synthesizer using a superior pitch to voltage converter for never-before control stability and accuracy. Now a guitarist or wind instrument player, or even a vocalist can use their instrument to control a synthesizer. the SPV-355 can also be used as a synthesizer expander module for another analog synthesizer. View full synthesizer Share this post Link to post Share on other sites
