Thorpy FX and Lazy J release The J amp-in-a-box pedal

November 5, 2025 · 2 sources

Thorpy FX released The J, an amp emulation pedal made with British boutique amp maker Lazy J, on November 5, 2025. The pedal is based on the Lazy J J-20 tube combo¹. MusicRadar reports it is Thorpy FX's second analog amp emulator, following the Scarlet Tunic¹.

The J presents two channels, Normal and Bright, each with its own footswitch and its own volume control¹. There is a master volume, a Response control described as a subtle presence control, and a Tone control for EQ¹. A Supply dial emulates the voltage attenuation control on the original tube amp¹. Guitar World lists the controls as Output, Response, Supply, Tone, Normal, Bright, an X/Y switch, a channel footswitch and a bypass footswitch, with true bypass and standard input and output². It also reports a toggle switch choosing between a lower gain 12AY7 and a 12AX7 for more drive, and that the channel knobs are interactive as on the original amp². Power is a 9V DC adaptor, not supplied, drawing 50mA, and dimensions are 100mm wide, 125mm deep and 53mm high².

MusicRadar gives the price as $366¹. Guitar World gives approximately $449². The two sources differ on the dollar figure. MusicRadar states "The J is available now"¹.

Adrian Thorpe, founder of Thorpy FX, described the pedal as a real collaboration between him and Lazy J founder Jesse Hoff¹.

MusicRadar describes the sound as Tweed-era Fender, citing mid '50s amps such as the Tweed Deluxe with heavy mids¹. Guitar World's reviewer writes that plugged into a clean amp the pedal offers harmonic texture and warm midrange expected of a tweed amp, with touch sensitivity².