Keeley Germanium Super Phat Mod

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Keeley Electronics

Keeley’s Super Phat Mod has been around for a while now, but the Super Phat Mod Germanium takes the popular overdrive circuit to a whole new level. Germanium transistors inserted after the tone stack give the Super Phat Mod a tone powered by screaming hot tubes. You get a warm, classic overdrive that is extremely sensitive to your picking dynamics. You also get a choice between two voicings: go Flat for a level EQ or switch to Phat to give your signal a low-frequency boost.

Brand: Keeley


  • Legendary Phat Mod
  • Dynamic Overdrive
  • AC125 Germanium
  • Made in the USA
  • Hand Built

Details: I’ve had the pleasure of modifying this circuit for many years. In 2001 it was the 3rd circuit I modded after the ROSS Compressor and Tube Screamer. It is a wonderfully complex circuit that has many layers of tube amp simulation. It is dynamic and expressive and captures many tones that guitar players love. Fast forward 16 years and we have added a small gain germanium amplifier right after the tone stack to simulate a tube power amp section that has plates so hot they’re almost red. The result is a more aggressively voiced overdrive with a spongy compression and fuzz that only germanium transistors give. The 16th Anniversary Edition is hand built with through whole parts and includes a couple visual changes over the regular one. The new badge has sixteen gold bars in the center circle and a germanium transistor badge. The first 100 will be hand signed. As we we developing this mod over the past couple months we had switched to the Tungsram AC125 germanium transistor as it sounded better for this pedal. We had already printed the new graphics on the cases for this limited run so it was too late to change. Not quite an “Inverted Jenny” but fun to know none the less. 😉

UPC: 607595984137

EAN: 607595984137

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