MXR M103 Blue Box Two-Octave Fuzz Pedal – Excellent

Best for

Experimental riffs and single-note parts where a deliberately unstable sub-octave fuzz texture is desired.

Watchouts

Sub-octave tracking is intentionally idiosyncratic and works best with deliberate single-note playing.

Verify before buying

• Does the sub-octave track across the fretboard?
• Are both controls and bypass tested?
• Is a power adapter included?