Bass reflex structure provides rich low-frequency reproduction with ample output

Overdrive after (especially Tube Screamer - mid heavy types)

Back & Sides:    ABS Composite

- Fine-tune your tone with controls for Bass

Your recordings for verse

Boss XS-1 Poly Shifter Size_Travel/Child Bass reflex structure provides richRapid Retuning, Flawless Sound The XS 1 Poly Shifter delivers instant retuning in a convenient, compact footprint. Driven by advanced BOSS algorithms years in the making, this magical pedal transforms the overall pitch while maintaining your instruments true character. You get speedy tracking, crystal clear response, and zero compromise in tonewhether shifting down, simulating a capo, or using extreme octave jumps for effect. The versatile XS 1