Muse Driver – Andy Timmons Full Range Overdrive


(4 customer reviews)

Tone Crafted with Andy Timmons

Germanium Diodes for Perfect Compression

Clean Boost to Square Wave Fuzz

Buffered Bypass or True Bypass

Manufactured by RKFX in the USA

18 in stock

Muse Driver – Andy Timmons Full Range Overdrive

Keeley Electronics Muse Driver Overdrive and Distortion Effect Pedal Black

The Muse Driver – Andy Timmons Full Range Overdrive is an overdrive workstation that allows you to orchestrate everything from a clean boost to a treble supercharger, a chimey tube-amp overdrive to a square-wave, germanium fuzz generator and more. This pedal combines a three-control blues driver circuit with two switches for the voicing Drive and Tone characteristics. Robert and Andy developed these switches to give players a broad range of drive tones.  The Drive toggle engages two germanium diodes for a smoother, slightly compressed drive.  Switch to Andy’s clipping style for a brighter and more articulate attack. Every part of the circuit has been optimized for tone and the demanding needs of a recording and touring artist such as Andy Timmons. Simply adding the Muse Driver to your pedalboard will likely make your rig sound better.  This pro sounding overdrive can be switched between true-bypass and buffered bypass at any time.


  • Classic blues driver circuit with decades of Keeley mod experience
  • Germanium based overdrive crafted with Andy Timmons direction
  • AT/RK Tone Switch cuts lows for a clarity or boosts low-end for power
  • AT/RK Drive Switch alternates between asymmetrical silicon to dual germanium diodes
  • Buffered Bypass or True Bypass – Change instantly depending on your rig’s needs
  • JFET Transistors, Germanium Diodes and Op-Amp Gain combine to form harmonically rich overdrive
  • 9 to 18 Volt operation for huge dynamic range and headroom


Keeley Electronics Muse Driver Overdrive and Distortion Effect Pedal Black

Andy Timmons – Tone Switch

The Muse Driver gives you two tone control circuits to choose from. When the Tone Switch is up and in the AT Position the tone control features Andy’s preferred voicing of the low-end response of a drive pedal. Each note in a chord is clear and articulate.  If the Tone Switch is down and in the RK Position that features the legendary Phat Boost in the low-end frequency response, perfect for pushing up vintage or single coil pickups.

Full Range Overdrive – Germanium Toggle Switch

The Muse Driver circuit combines JFET saturation, diode clipping, and op-amp clipping in order to create its harmonically rich tone. Drive Switch UP for AT Clipping – this mode features asymmetrical LED diode clipping and is Andy’s Super AT Mod sound.  When the Drive Switch is Down for RK Clipping – the circuit features two germanium diodes for clipping.  This mode can sound a bit like a vintage fuzz pedal with a softer, smoother feel.

Keeley Electronics Muse Driver Overdrive and Distortion Effect Pedal Black

Muse Driver – Both Buffered Bypass & True Bypass

The Muse Driver features our precise buffer for noise-free switching. We have developed a buffer which not only makes your rig sound better, it gives you silent switching with no tone loss. Switch between true-bypass and buffered on the fly. Simply press and hold down the foot switch for two seconds and the pedal will switch between true-bypass and buffered bypass!  You can decide what works best in your rig.

Keeley Electronics Muse Driver Overdrive and Distortion Effect Pedal Black

Made In The USA – Muse Driver – Andy Timmons Full Range Overdrive

We design, engineer, and manufacture the Keeley Electronics/Andy Timmons Muse Driver in Oklahoma City.  Everything about the Muse Driver is geared towards the professional musician and their quest for an inspiring tone when performance demands it. From the inside of the pedal and its meticulously built circuit boards to the newly fabricated aluminum enclosure; we make guitar effect pedals like finely crafted musical instruments.

Keeley Electronics Muse Driver Overdrive and Distortion Effect Pedal Black



A Note From Andy Timmons:

The Muse Driver is the ultimate expression of the clean/slightly broken-up tone I’ve been going for over the last several years. Robert Keeley and his incredible team have once again knocked it out of the park!

The AT/AT setting is exactly my Super AT Mod tone: just the right amount of breakup available at your dynamic command. Every note and nuance is clear as a bell. The crazy thing about this mode is that it also sounds great with the gain turned up, providing an incredibly cool Marshall-esque crunch tone.

Having the original RK modded BD-2 circuit is sheer luxury as that’s the circuit that I fell in love with years ago! It still inspires me!

The real hidden gem here is Robert’s new modification that utilizes germanium diodes instead of the original silicon for a new kind of clipping that works insanely well on its own OR as a boost for my lead tone. It has a lovely way of further taming the low-end that I really love.

With the Muse Driver and the Halo, I’m in Tone Heaven!

Andy Timmons and Aaron Pierce with the Muse Driver Prototypes

Aaron Pierce and Andy Timmons looking over the Muse Driver prototypes.

Instructions: Muse Driver – Andy Timmons Full Range Overdrive

Keeley Electronics Muse Driver Overdrive and Distortion Instructions

18 in stock

4 reviews for Muse Driver - Andy Timmons Full Range Overdrive

  1. Mike JAKUBEC (verified owner)

    What an awsome and inspiring Pedal. Having the Halo and AT Mod already putting the Muse in the chain gives me a wider tone arrangement and combinations of them opens up new ideas and just sounds amazing. Weather in the AT up or RK down modes you will find that happy place your ears are chasing after. I retired the AT Mod and run with the AT + …. Wow 👌. Well done Robert and Andy. How about you guys build a custom wah volume and an Octavia! 👍

  2. jeff.a.conrad-9485 (verified owner)

    “Where this drive really shines is ______” This statement doesn’t apply to the Muse Driver. There is not a bad sound in the box. In fact, dialing it in is accomplished by turning it on. I’ve played through and owned most of Keeley’s drives, as well as a plethora of others. The Muse Driver is the best of the best!

  3. Dennis Poggenburg (verified owner)

    I would be hard pressed to name a better overdrive pedal. The tonal possibilities seem endless, and the tone is consistently sweet and articulate, regardless of setting. The gain is not too fizzy, but you get all the bark and scream you could ask for. It really is perfect.

  4. imartinez1995 (verified owner)

    Warm, fuzzy, crunchy- this does it all. I still have not figured out the full scope of this pedal, but from humbuckers to P90s, this sounds absolutely perfect.

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