FatRock

The Amptweaker FatRock is a distortion pedal that offers a variety of features and technical specifications. It is a darker and fatter version of the Amptweaker TightRock, designed to be used as a distortion effect or as a preamp into an amp's effects return or power amp. The pedal's features are identical to the TightRock, but the tone has been tweaked to extend the low range of the Tight and Tone controls, and a fixed Fat boost has been added at the frontend for a slightly less aggressive attack, boosting the low end in the output EQ.

The EQ switch provides classic vintage stack tones, while the Gain Boost switch modifies the gain from a classic distortion sound to a very modern amount of gain. The pedal can also be used as a fat overdrive for an already distorted amp or pedal without changing the character very much when both switches are turned off. The TightRock noise gate has been retweaked to make it smoother and to sound better with the reduced highs of the FatRock, allowing it to work better for solos.

Other features include the Pre/Post switch, LED illumination of the controls, a Battery On/Off switch, and a magnetic battery access door. The rear effects loop send can also be used as a clean guitar send for re-amping in the studio if switched to Pre. Additionally, the pedal features Amptweaker’s SideTrak effects loop, which can be used to add a compressor, chorus, or chain of effects that only works when playing clean, or to switch to another distortion pedal to use for the rhythm sound, all without having to hit more than one switch.