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ThorpyFX The Bunker review

Revisit Lovetone’s roots with Adrian Thorpe's take on one of our favorite tone condiments, the Brown Source overdrive

ThorpyFX The Bunker review
(Image: © Future / Olly Curtis)

Our Verdict

A more flexible and rugged version of the Brown Source that should appeal to a wider variety of contemporary guitar players.


  • Military-tough build.
  • Stable performance.
  • Lovely, harmonically rich and complex overdrive.


  • Nothing.

Much like a bunker is covered in brown dirt, so too will your signal with this upgraded version of the Lovetone Brown Source overdrive

The prototype was voiced using a Tele and Hiwatt amp while aiming for Jumpin’ Jack Flash guitar tone, and The Bunker manages to capture that stack-in-a-box overdrive sound in spades, covering an impressive amount of sonic ground with depth, dynamics and cut.

Similar to the Big Cheese/The Field Marshal, the four-way tone switch of the Brown Source has been reworked to include a three-way EQ/tone Mode toggle with a tone stack bypass footswitch labelled Sauce. When engaged, the sound is brighter and more gain-y with the Texture control set between nine o’clock and minimum. 

Adjusting Texture - a feedback loop producing intermodulation distortion - adds harmonics and complexity to the sound, and, with the knob set around four o’clock, is roughly in line with the fixed position of the original incarnation.


(Image credit: Future / Olly Curtis)
  • PRICE: £189
  • TYPE: Overdrive pedal
  • FEATURES: Tone stack bypass; 3 tone modes
  • CONTROLS: 4x knobs: Vol, Drive, Texture & Tone; 2x footswitches: Bypass & Sauce; 3-way Mode selector switch
  • CONNECTIONS: Standard input and output jacks; 2.1mm barrel (centre negative)
  • POWER: 9V DC (adaptor not supplied)
  • DIMENSIONS: 65 (w) x 125 (d) x 53mm (h)
  • CONTACT: ThorpyFX