Original Owner purchased from Sweetwater, never taken from studio that includes Manual and Boss AC Adapter
Plug into the standard 1/4-inch jack and play rich and expressive polyphonic synth tones with any guitar,
Completely latency-free playing feel directly connects your hands with the sound
Three simultaneous synth sections and four effects processors enable rich, dynamic, and diverse sound creation
Shape your normal guitar tone with synth filters, amplifiers, and LFOs to create all-new sounds
Graphic LCD display, three assignable footswitches, and dedicated on/off footswitch
70 ready-to-play preset patches and 99 user patches for storing custom sounds
Create and archive sounds on your computer with the BOSS Tone Studio editor/librarian and download new sounds at
BOSS Tone Central
True Analog-Style Synth for Guitar
The SY-300 features a powerful polyphonic synthesis engine with three separate sections, bringing a limitless range of fresh tones to your arsenal.
Just like a keyboard player with a classic analog synth, you have complete creative freedom to build sounds with a full palette of synthesis parameters—select different wave shapes, tweak them with filter, amp, and pitch controls, modulate them with LFOs, and layer oscillators for rich, complex tones.
There’s even a step sequencer (with tap tempo control) for creating dynamic melodies and arpeggios simply by playing a single note on your guitar! And with the cool Blender function, you can instantly mix and match synth settings from other patches to discover inspiring new sounds with no heavy lifting at all.
Works with bass and other electronic instruments as well