The Keeley Mk3 Driver – Andy Timmons Full Range Overdrive is a multi‑faceted drive pedal designed to deliver everything from transparent clean boost and tube‑like overdrive to rich germanium‑flavored clipping and vintage fuzz‑like tones. Built in collaboration with guitar virtuoso Andy Timmons, this pedal combines decades of Keeley circuit expertise with player‑centric voicing switches to give you harmonically rich, dynamic drive tones that respond to your touch and amp interaction.
Whether you’re seeking chimey blues breakup, thick midrange grit, or creative distortion textures, the Mk3 Driver puts professional‑grade tone shaping at your feet.
Customize your drive character with dedicated switches that control clipping and tone response:
AT/RK Drive Switch (Clipping Style):
AT Clipping (Up): Asymmetrical LED diode clipping delivers super AT Mod style drive with articulate attack, bright presence, and dynamic response.
RK Clipping (Down): Dual germanium diode clipping gives smoother, warmer saturation that can resemble vintage fuzz‑like richness with softer transitions.
AT/RK Tone Switch (Low‑End Voicing):
AT Position (Up): Andy Timmons’ preferred voicing boosts clarity and articulation across chord tones.
RK Position (Down): Inspired by classic low‑end “Phat Boost” circuits, this setting enhances low‑frequency power—perfect for pushing single coils or vintage amps.
The Mk3 Driver’s simple yet expressive front‑panel controls let you dial in:
Drive: Adjust the amount of gain and saturation
Tone (Channel Voicing): Shape the pedal’s frequency balance
Level: Set output volume and boost intensity
Every component—from JFET transistors to op‑amp and diode clipping stages—has been optimized for harmonic richness and musical feel.
Seamlessly switch between true bypass and buffered bypass to suit your rig:
Hold the footswitch for two seconds to toggle modes
Buffered bypass improves signal integrity in complex pedal chains
True bypass preserves your tone when the pedal is off
This flexibility ensures the Mk3 Driver adapts to any setup without unwanted noise or signal loss.
Operating between 9–18 VDC, the Mk3 Driver offers:
Expanded dynamic range
Increased headroom
Responsive, amp‑like feel even at higher volumes
(Standard 9 VDC power input recommended; voltage doubling occurs internally.)
Designed and built in Oklahoma City, USA, the Mk3 Driver embodies Keeley’s commitment to premium tone, durability, and playability. Every element—down to the rugged aluminum enclosure—reflects the needs of touring musicians and studio pros.
Whether used as a standalone overdrive, boost into your amp, or tone shaping tool in a multi‑pedal setup, this pedal is engineered to inspire.
Guitarists looking for versatile overdrive and clipping tones
Players who want dynamic response and harmonic richness
Musicians who use both clean and driven amp sounds
Anyone seeking professional tone flexibility in one pedal
| Weight | 2 lbs |
|---|---|
| Dimensions | 8 × 6 × 4 in |
| Product Condition | USED, NEW |
Typically ships within 5-7 days


The Keeley Mk3 Driver – Andy Timmons Full Range Overdrive is a multi‑faceted drive pedal designed to deliver everything from transparent clean boost and tube‑like overdrive to rich germanium‑flavored clipping and vintage fuzz‑like tones. Built in collaboration with guitar virtuoso Andy Timmons, this pedal combines decades of Keeley circuit expertise with player‑centric voicing switches to give you harmonically rich, dynamic drive tones that respond to your touch and amp interaction.
Whether you’re seeking chimey blues breakup, thick midrange grit, or creative distortion textures, the Mk3 Driver puts professional‑grade tone shaping at your feet.
Customize your drive character with dedicated switches that control clipping and tone response:
AT/RK Drive Switch (Clipping Style):
AT Clipping (Up): Asymmetrical LED diode clipping delivers super AT Mod style drive with articulate attack, bright presence, and dynamic response.
RK Clipping (Down): Dual germanium diode clipping gives smoother, warmer saturation that can resemble vintage fuzz‑like richness with softer transitions.
AT/RK Tone Switch (Low‑End Voicing):
AT Position (Up): Andy Timmons’ preferred voicing boosts clarity and articulation across chord tones.
RK Position (Down): Inspired by classic low‑end “Phat Boost” circuits, this setting enhances low‑frequency power—perfect for pushing single coils or vintage amps.
The Mk3 Driver’s simple yet expressive front‑panel controls let you dial in:
Drive: Adjust the amount of gain and saturation
Tone (Channel Voicing): Shape the pedal’s frequency balance
Level: Set output volume and boost intensity
Every component—from JFET transistors to op‑amp and diode clipping stages—has been optimized for harmonic richness and musical feel.
Seamlessly switch between true bypass and buffered bypass to suit your rig:
Hold the footswitch for two seconds to toggle modes
Buffered bypass improves signal integrity in complex pedal chains
True bypass preserves your tone when the pedal is off
This flexibility ensures the Mk3 Driver adapts to any setup without unwanted noise or signal loss.
Operating between 9–18 VDC, the Mk3 Driver offers:
Expanded dynamic range
Increased headroom
Responsive, amp‑like feel even at higher volumes
(Standard 9 VDC power input recommended; voltage doubling occurs internally.)
Designed and built in Oklahoma City, USA, the Mk3 Driver embodies Keeley’s commitment to premium tone, durability, and playability. Every element—down to the rugged aluminum enclosure—reflects the needs of touring musicians and studio pros.
Whether used as a standalone overdrive, boost into your amp, or tone shaping tool in a multi‑pedal setup, this pedal is engineered to inspire.
Guitarists looking for versatile overdrive and clipping tones
Players who want dynamic response and harmonic richness
Musicians who use both clean and driven amp sounds
Anyone seeking professional tone flexibility in one pedal
| Weight | 2 lbs |
|---|---|
| Dimensions | 8 × 6 × 4 in |
| Product Condition | USED, NEW |
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