Dunlop M103 MXR® Blue Box™ Fuzz
This is the crazy effect heard on Jimmy Page's Fool in the Rain solo. The Blue Box Octave Fuzz takes your guitar signal and duplicates it two octaves down for a huge, subterranean tone. The Blend knob lets you control how much of the fuzz tone is mixed with the two octaves down signal. Not for the timid-there is truly nothing like the Blue Box.
- Power: Dunlop ECB-003 AC Adapter or single 9-volt battery
- Controls: Footswitch toggles effect on/bypass ( red LED indicates on)
- Output knob sets total effetc output level
- Blend knob adjust ratio of dry and effected signal.
Build out your board
Make it play like yours
Our in-store repair shop can set this up before it leaves – string gauge, action, intonation and tuning, done to how you play. Already own one? Book a setup anytime.
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Granata Music School teaches guitar, bass, piano, drums, voice and more, right here in the store. Your first lesson is on us.
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Questions
Quick answers about buying from Granata Music.
Still deciding? Ask our staff.
We play, set up and repair this gear every day. Call or email and we’ll help you choose.
Granata Music Roydon
43 Roydon Place, Unit 4, Ottawa, ON
Mon–Fri 10–8 · Sat 10–7 · Sun 12–5
















