Kool & Elfring Ace Boost


The Ace Boost MKIII Pedal is an all tube boost pedal which means it pushes the first gain stages of your tube amplifier into saturation.

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2 in stock

Lower gainsettings add beautifull harmonics to clean sounds, warming up sound nicely. Medium gain settings will result in some real tasty crunch-tones. Turning it up further an the sound changes into full blown, open, harmonically rich, 3d lead tones.


  • Pushing your amp into crunch / overdrive
  • Sound enhacement, adding harmonics (low gain setting)
  • Volume boost of clean amps
  • Cable buffer

Additional information


Kool & Elfring