

The MXR Blue Box by Dunlop is an octave fuzz pedal that drops the guitar signal two octaves down and combines it with gnarly fuzz for huge subterranean tones. It features a simple two-knob design consisting of Blend and Output controls. The Blend knob allows control over the balance between the octave and fuzz effects, while the Output knob controls the output volume of the pedal. The pedal can be powered by a 9-volt battery, a Dunlop ECB003 9-volt adapter, or the DC Brick™, Iso-Brick™, and Mini Iso-Brick™ power supplies (not included). The pedal is designed to be compact and rugged, suitable for live performances.
Watch the latest video demos and reviews for the MXR Blue Box from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.
Below are live Reverb listings for the Dunlop MXR Blue Box from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.
Brand New
$107.49
Brand New
$99.99
Brand New
$114.16
Brand New
$99.99
Browse through eBay listings for the MXR Blue Box compiled in real-time. From vintage finds to brand-new units, see a variety of purchasing options. This automated collection helps you explore deals and find the right pedal at the right price.
Used
$87.99
Used
$65.00
Used
$299.00
New
$99.99
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