Guitar Pedal X - News - 16 of the best Guitar Synth Pedals - 2019 Edition
Boss SY-1 Polyphonic Guitar Synthesizer Pedal - Prymaxe
Guitar Pedal X - GPX Blog - Boss Delivers Monster New King of Guitar Synthesizers - the Polyphonic 3-Voice and 3-Engine, Twin Step Sequencer, 150+ Effects SY-1000
2022 UPDATE: Best Synth Pedals (Monophonic & Polyphonic) | A Buyer's Guide | Delicious Audio