Pre-owned MXR Duke of Tone is a compact, highly regarded overdrive pedal created in collaboration with Analog Man, designed to deliver the character of the legendary Prince of Tone and King of Tone circuits without the long waitlist. Here’s a clear, grounded breakdown based on the search results you triggered. It is a transparent overdrive/boost/distortion pedal built to enhance your amp’s natural tone rather than mask it. 

Key Features

• Analog Man–designed circuit based on the Prince of Tone

• Three modes: Boost, Overdrive, Distortion

• Volume, Drive, Tone controls for simple but flexible shaping

• Transparent, amp?friendly voicing that preserves your guitar’s character

• Mini pedal format for easy board placement

• 9V adapter only (no battery option)

• Warm and dynamic, responding well to picking nuance

• Open and transparent, ideal for stacking with other drives