Boss SY-1 Guitar Synthesizer Demo
18:17
BOSS SY-1 - Is it really that good?? [McRocklin playthrough]
32:56
THE BOSS OF SYNTH PEDALS? | Boss SY-1 Synthesizer
9:30
BOSS GM-800 Guitar Synthesizer | Sound Examples by Alex Hutchings
7:56
BOSS: SY-1 Synthesizer
18:13
Boss SY-1 Guitar Synthesizer...Huge Synth Sounds, Compact Pedal! - Review & Demo
29:52
BOSS SY-1 Synthesizer | ALL THE SOUNDS [NO TALK / ONLY TONES]
12:22
Electro-Harmonix POG3 Polyphonic Octave Generator Pedal (EHX Demo by BILL RUPPERT)
26:51