Electro Harmonix Nano Bass Big Muff
The Electro Harmonix Nano Bass Big Muff is a compact electric bass effect pedal delivering rich fuzz tones. Despite its small size, it offers a powerful and versatile fuzz experience with controls for volume, tone, and sustain. Perfect for bassists seeking the classic Big Muff sound in a portable package.

Latest User Reviews
Tiny but delivers
I'm a fan of smaller pedals and also don't use that many pedals, but ever since I got this one (bit more than half a year), I'm willing to take even more.
This is gig-ready pedal with a sweet spot for fuzz-fun. Not just me, but my band loves this amazing fuzz tone.
What I love:
- knobs don't turn on their own
- fits a small board (like mine)
- simple and to the point (3 knobs, 1 wet/dry switch)
- have incredible and good sustain - once I let it ring almost forever before a come-back
- it does not cut the bass with the fuzz, but my secret sauce is to use a BEQ right after this one and punch a bit more of 50 and 120hz and cut anything above 4000hz ... Incredible sound
What I dislike:
- the footswitch might be harder to flip on sometimes
- depending on the song, is just too much fuzz power for the bass 😅
Overall, I everybody should have this (or bigger).
Once you get to know it, it can be versatile enough to cut through any mix.
I'm curious to get a Rat and see how both would play w/ each other while I have the fun.
Big Muff but small
Excellent Big Muff sound without taking up the space. The option to keep the dry signal and blend with the fuzz sound is an excellent additional feature.
Great Vintage Muff Sound
There are a lot of good fuzz pedals that are suitable for out there and it took me a long time to finally decide which one to buy. Money was never an issue and my primary focus was on the sound and quality. I knew I couldn't take one for a test run, so I had to rely heavily on reviews. I definitely made the right choice. The sound is vintage muff fuzz, without the boom. It is very articulate and can easily be mixed with other pedals. The build quality is excellent and much better than expected considering the price. Overall, worth the gamble and I would recommend this pedal to any bass player looking for a professional vintage fuzz sound. No cons.
A little monster
Perfect for synths 303 style! Creamy and powerful. Small and sturdy. Built like a tank.
Excellent for guitar as well
I got this after seeing a comparison of all the nano muffs and this stood out to me as the most versatile and less noisy. I am using it with a guitar and it works very well, with a sound similar to the green russian as far as I can tell.
One thing I wish this pedal had is a way to control the total volume output when mixing in the clean signal. As it stands when the switch is toggled the pedal outputs the clean signal at a fixed volume and the volume level controls how much distorted signal is added, leading to a total volume that is louder than unity.
Technical Data
- Manufactured by Electro Harmonix
- Released in 2014
- Average price : $96
- Fuzz
- Controls for: Volume, Tone and Sustain
- True bypass
- Dimensions : 65mm x 110mm x 55mm
Reasons to buy
- Authentic Big Muff sound in a compact and portable design.
- Excellent value for money, providing a great fuzz pedal at an affordable price.
- Simple and intuitive controls make it easy to dial in desired fuzz tones.
- True bypass ensures your bass signal remains unaltered when the pedal is disengaged.
- Versatile and suitable for a variety of musical styles, delivering vintage fuzz with clarity.
Reasons to avoid
- Footswitch may require more effort to toggle at times.
- Some users find the volume output fixed when blending in the clean signal.
- Limited control over the total volume output in certain signal blending scenarios.
- For those seeking additional features or more intricate controls, this may be considered basic.
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