BOSS - BOSS SY-300 vs. Roland GR-55 Guitar Synthesizer. Find out which guitar synth is the right one for you: http://www.bossus.com/blog/2015/08/20/a-tale-of-two-guitar-synthesizers/ BOSS SY-300 DEMO: https://youtu.be/9EdzJz5X2-c BOSS SY-300 INFO: http ...