• 
  News

  JHS Pedals DIY Dumble Pedal Finally Launched– Complete with John Mayer Boost Clone

  By Jef Stone

  JHS Pedals corrects a massive schematic mistake by releasing the Notadümble V2, featuring an accurate clone of John Mayer’s ultra-rare Dumble clean boost. Finally Here!Read More

  Jul 16, 2026

• 
  Effects Pedals

  JHS Pedals ‘The Fumble’: How a Historic $200k Mistake Became an $89 Secret Weapon

  By Jef Stone

  How a $200k mistake became an $89 secret weapon. JHS Pedals drops The Fumble, a standalone JFET boost with a wild history tied to John Mayer and Dumble.Read More

  Jun 1, 2026