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Electro Harmonix Nano Bass Big Muff Guitar Pedal


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  • Compact and robust bass distortion pedal
  • Tailor your drive/distortion sound with Sustain, Tone and Volume
  • Features a Dry switch that mixes your dry bass, at unity level, with the Nano Bass Big Muff’s distortion
  • True bypass for maximum signal path integrity
  • Roadworthy die-cast chassis made to be gigged hard
  • Suitable for guitarists and bassists alike
  • Includes 9-Volt battery for instant use
  • Can also be powered via 9V adapter (not included)
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  • Flexible finance available on orders over £250
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Delivery & Returns

Delivery to UK mainland addresses* is FREE on orders over £75 and up to 30kg. (As a guide, a standard electric guitar weighs approx. 3-5kg).

Delivery on orders below £75 are charged at £4.45!

Delivery to Northern Ireland, the Scottish Highlands & Islands, Isle of Man, Isle of Wight, Channel Islands and the Republic of Ireland. is weight dependant and will be indicated at the checkout

Delivery above 30kg to ANY location will vary according to weight and will be indicated at the checkout

LocationPriceStandard Delivery
UK mainland*FREE on orders over £75 £4.45 on orders under £751-3 working days
Northern Ireland, Scottish Highlands & Islands Isle of Man Isle of Wight Channel Islands Republic of Ireland£12.95 – any order value up to 30kg Over 30kg - please call1-3 working days
OverseasPlease call for detailsPlease call

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The original Big Muff has never been solely the reserve of guitarists, with bassists employing its powers due to the excellent low-end response. However, Electro Harmonix responded to demand and created the Big Muff PI especially for bass, to give bassists a tailored Big Muff tone. With this delightful new product, you it is easier than ever before to include that huge sound in your pedalboard thanks to the intricately designed Nano Bass Big Muff Pi.

The unique Big Muff sound is easily attained and controllable using the uncluttered layout of Sustain, Tone and Volume controls. Simply play around with the controls and dial in your desired setting and that's it. A new Dry switch mixes the dry bass signal - at unity level - with the distorted signal to give a beautiful barrage of tone.

Whether you're looking for a delicate lift to your clean tone, funky, chunky blues rumble or all-out rock/drone tones, then this little beast will blow your mind. Minor or major adjustments will yield incredible results. For such a small unit it packs in all the power of its larger sibling.

As you'd expect from Electro Harmonix, the die-cast chassis is designed to withstand a torrent of abuse. Whether it remains in the studio or is your gigging partner of choice, the Nano Bass Big Muff will still be ready to go long after the tour is over.

As ever the pedal features true bypass so that your guitar signal remains unblemished. As part of your pedal chain you can rest assured that the Nano Bass Big Muff PI will only affect the signal when you want it to.

If you're looking for that distinctive Big Muff tone that has been carefully attenuated to bring out the beast in your bass, will slip into any pedalboard setup and take all the punishment you can throw at it, then this is the pedal for you.

ManufacturerElectro Harmonix
ModelNano Bass Big Muff Guitar Pedal
Effect TypeDistortion/Sustainer
ControlsVolume, Tone, Sustain, Dry
Connectivity Guitar In
Amp Out
Included Accessories9V Battery
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