The Electro-Harmonix Little Big Muff Pi is a compact analogue fuzz, distortion, and sustainer effe...The Electro-Harmonix Little Big Muff Pi is a compact analogue fuzz, distortion, and sustainer effects pedal. It offers the same silky smooth, violin-like sustain and creamy tone as the classic Big Muff Pi, but in a smaller die-cast box. The pedal features true bypass and mono audio. It operates on a 9V battery (included) or an optional 9.6VDC-200mA power adapter (not included). Dimensions are 4.75 x 4 x 2.25 inches. Key features include Sustain, Tone, and Volume controls, along with Input, Output, and Bypass footswitch.
EHX Electro Harmonix Little Big Muff Pi Distortion Fuzz Sustainer Guitar Pedal£5.00 delivery£82.00Visit shop →
Product Information
Full details
The Electro-Harmonix Little Big Muff Pi is a compact analogue fuzz, distortion, and sustainer effects pedal designed for guitarists seeking the classic Big Muff Pi tone in a smaller footprint. Its key benefit is delivering silky smooth, violin-like sustain and a creamy tone, perfect for lead guitar parts or adding thickness to rhythm sounds. A potential caveat is its limited control set compared to larger pedals, focusing on core fuzz characteristics. It features a tough die-cast chassis, true bypass, and simple Sustain, Tone, and Volume controls.
All features
Colour
Silver
Model Part Number
LITTLE BIG MUFF
Brand
Electro-Harmonix
Extended Product Information
FAQs
What is the difference between the Little Big Muff Pi and the classic Big Muff Pi?
The Little Big Muff Pi offers the exact same classic Big Muff Pi fuzz circuit and tone but is housed in a significantly smaller and more pedalboard-friendly die-cast chassis.
Can I power the Little Big Muff Pi with a standard 9V power supply?
The pedal can be powered by a 9V battery or a 9.6VDC-200mA power adapter with a center-negative polarity. While some standard 9V center-negative adapters may work, it's recommended to use the specified 9.6VDC for optimal performance and to avoid potential damage.
How do I adjust the tone of the fuzz?
The Tone knob allows you to shape the EQ of the fuzz. Turning it counter-clockwise will make the sound darker and bassier, while turning it clockwise will make it brighter and more trebly.
What does 'True Bypass' mean?
True bypass means that when the pedal is switched off, it completely disconnects the effect circuit from your signal path, ensuring that your original guitar tone passes through unaffected to your amplifier.
What is the power consumption of the Little Big Muff Pi?
The Little Big Muff Pi consumes 200mA of current when powered by an external adapter.
Can I use this pedal for bass guitar?
While primarily designed for guitar, many bassists use Big Muff style pedals. However, its effect on the low-end frequencies might vary. You may need to experiment with the Tone control and consider using it in conjunction with a clean blend or EQ pedal to retain bass definition.
Does the pedal come with a power adapter?
No, the Electro-Harmonix Little Big Muff Pi includes a 9V battery but does not come with a power adapter. An optional 9.6VDC-200mA power adapter is sold separately.
Troubleshooting
No sound when the pedal is engaged
Check that the guitar and amplifier cables are securely connected to the pedal's INPUT and OUTPUT jacks. Ensure the pedal is powered on (battery or adapter) and the effect is engaged (BYPASS footswitch is not lit if it indicates bypass status, or is lit if it indicates effect status – check manual for specific light indication). Test with a different cable or amplifier to rule out other equipment issues.
Weak or distorted signal even with controls at maximum
Verify that the 9V battery is fresh or that the power adapter is providing sufficient and correct voltage (9.6VDC, 200mA). Ensure the output volume of the pedal is adequately set to drive your amplifier. Check for any other pedals in the signal chain that might be affecting the sound.
Fuzz sound is too muddy or lacks definition
Adjust the Tone control counter-clockwise to reduce treble and darken the sound, or clockwise to increase treble and brightness. Experiment with the Sustain control; reducing it can sometimes lead to a clearer, more defined tone at lower gain settings.
Pedal makes unwanted noise or hum
Ensure you are using a quality power adapter. Try powering the pedal with a battery to see if the noise persists. Check your cable connections for any loose shielding. Other electronic devices nearby might also cause interference; try moving the pedal or amplifier.
Pros and Cons
Pros
Delivers the iconic Big Muff Pi fuzz sound in a smaller size.
Simple and intuitive controls for quick sound shaping.
Robust and durable die-cast construction.
True bypass preserves your core guitar tone when not in use.
Includes a 9V battery for out-of-the-box operation.
Cons
Limited tonal shaping options compared to other distortion pedals.
May not have enough output volume for some players without additional boost.
Requires a separate power adapter if not using battery power.
Only one sound profile (fuzz) is offered.
Setup, Compatibility & Care
Setup
Connect your guitar to the INPUT jack using a standard 1/4" instrument cable.
Connect the OUTPUT jack to your amplifier or the input of another effects pedal using a standard 1/4" instrument cable.
Power the pedal using either the included 9V battery or an optional 9.6VDC-200mA center-negative power adapter (not included).
Engage or disengage the effect by pressing the BYPASS footswitch.
Compatibility
Best Uses: Primarily designed for Guitar.
Audio: Mono input and output.
Power: Compatible with standard 9V batteries or a 9.6VDC-200mA power adapter with a center-negative polarity. Using incorrect voltage or polarity may damage the pedal.
Care
Cleaning: Wipe the exterior of the pedal with a dry or slightly damp cloth. Avoid using abrasive cleaners or solvents.
Battery Replacement: Open the bottom plate to replace the 9V battery. Ensure the pedal is unplugged from any power source before doing so.
Storage: Store in a dry environment when not in use to prevent corrosion or damage.