Sound ClipThe Hartman Electronics LM308 Op-Amp Distortion guitar pedal was inspired by the edgy, modern-sounding distortion popularized by punk, new-wave and college rock bands of the late 70's and early 80's.
Incorporating true-bypass switching and LED indicators, each pedal features ultra-quiet premium components, military-spec plated-thru-hole printed circuit board (PCB) construction, and the LM308: the 1970's-manufacture Op-Amp that lent its signature tone some of the finest pedals of that era.
The pedal offers two modes of distortion, selectable on-the-fly via stomp switch. The first distortion mode (A) employs a diode-clipping stage to produce a classic distortion and crunch of the early ProCo RAT, exhibiting the sensitivity to player pick-attack, mute- and pinch-harmonics for which that pedal is reknowned.
The second distortion mode (SYM) transforms the pedal into an overdrive, increasing transparency, headroom, and dynamic response, and producing a hotter output signal suitable for overdriving the input of downstream amps/devices.
Together, the two modes of operation expand the pedal's sonic palette and versatility, allowing it to be applied to a wide array of setups, playing styles and musical contexts, old and new.
All pedals are hand-wired and assembled to order using N.O.S. (new old-stock) LM308AH metal-can style op-amps unless otherwise requested. The LM308AH has a smoother treble roll-off than the LM308N.