BOSS SY-300 Ultimate Patches

Get 290 patches (including 158 user-created options) for the BOSS SY-300 guitar synthesizer — fresh, experimental analog synth sounds ready to explore new musical territory from the moment you load them.

This collection also includes a selected Artist Live Sets library and a re-leveled version of the 70 factory patches, so your tones stay consistent across the whole set.

BOSS SY-300 Guitar Synthesizer

The SY-300 creates fat, analog-style polyphonic synth sounds with zero latency, extending the natural feel of your guitar without requiring a special pickup — just plug into the standard 1/4-inch jack. Onboard filters, amps, and LFOs let you shape your actual guitar tone, making it possible to build soundscapes, leads, textural pads, and sounds that go well beyond a standard guitar tone.

Key Features & Benefits

• 290 Total Patches — Including 158 user-created patches, plus selected Artist Live Sets.
• Re-Leveled Factory Patches — A rebalanced version of the 70 factory patches for a consistent playing experience.
• Zero-Latency Polyphonic Synth Tones — Built around the SY-300’s real-time DSP guitar synthesis.
• No Special Pickup Needed — Works with any guitar through the standard 1/4-inch input.

What’s Included in the Download

• Patch Files: 290 SY-300 patches in .TSL format, compatible with the BOSS SY-300 Guitar Synthesizer.
• Compatibility: BOSS SY-300 Guitar Synthesizer.
• Digital Delivery: Instant download upon receipt of payment — no physical media, no shipping wait.
• Support: Contact us directly for installation help or file access issues. See our FAQ page for common questions.

Frequently Asked Questions