MXR - CSP039 Custom Shop Duke of Tone Overdrive Pedal


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The Analog Man 'King of Tone' overdrive pedal is a modern classic. This extremely revered, dual-channel design is held in as high esteem as other overdrive icons like the Klon and Marshall BluesBreaker; renowned for its versatility and warm, organic gain characteristics. Despite the KoT's huge popularity, Analog Man still remains a small independent pedal builder that can only produce a modest amount of units per year leading to a whopping 5-year waiting list!

However, you can now get the coveted King of Tone sound from a much more affordable, compact, and quickly-available stompbox. Introducing the MXR Custom Shop 'Duke of Tone' overdrive pedal!

MXR & Analog Man Collaboration

Designed in conjunction with Analog Man, the MXR Duke of Tone overdrive is made for players who want to add a touch of warmth and "grit" to their rig while allowing the natural tone and feel of their gear to shine through. Based on the 'Prince of Tone' overdrive, which is the single-channel version of the King of Tone, this pedal is practically a vintage connoisseur's dream come true!

3 Gain Modes

The Duke of Tone overdrive likewise carries forward the same simple-yet-effective control interface. Volume, Drive, and Tone knobs cover all your basic tweaks, while the Boost/OD/Distortion switch allows you to set the overall attitude of the pedal's output. Boost mode gives you a clean-yet-vigorous bump, OD mode adds a touch of grit and compression, and Distortion mode adds a touch more of each.

In all modes, your rig still sounds like your rig. And don’t be afraid to get creative — the Duke of Tone overdrive is excellent when stacked with other gain pedals, and running the pedal on 18V will give you an extra helping of headroom and clarity, especially in Boost mode.

A Tone-Accurate Recreation

Analog Mike personally tested and matched all of the various thru-hole components to the King of Tone overdrive, ensuring that the sweet sonic seasoning stays in the line of succession. In essence: a warm-yet-clear-and-open sound that allows all of the nuances of your signal chain to come through, from your individual guitar strings to the dynamics of your amp's tubes.

Key Features

  • Designed in collaboration with Analog Man.
  • Warm and gritty, without preventing the sound and feel of your other gear to shine through.
  • Thru-hole components personally tested by Analog Mike.
  • Boost/OD/Distortion switch allows you to set the overall attitude of the pedal's output.
  • Stack it with other gain pedals for creatively-crunchy results!


  • Input Impedance: > 450 kΩ
  • Output Impedance: < 10 kΩ
  • Bypass: True Bypass
  • Current Draw: 6 mA
  • Voltage: 9-18V

Shipping Information

Our on-line store is open 24/7 and we ship Monday through Friday, excluding bank holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 2:00 p.m. GMT Orders in high demand will have an estimated production time listed on its product page and will ship once we have taken delivery. Please contact us for estimated delivery on out of stock items.

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