Boss SY-1 Synthesizer Pedal Review - Bass Musician Magazine, The Face of Bass
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BOSS SY-1 Synthesizer Pedal
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Guitar Pedal X - GPX Blog - In the Wake of Boss's superbly successful SY-1 Synthesizer - Synth fans could really do with a SY-200 edition - with even more flavours and Presets!
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Pedals and Effects: SY-1 Synthesizer by Boss - YouTube
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Boss SY-1 synthesizer pedal offers 121 sounds for $200 - Geeky Gadgets