The FatRock Distortion Pedal's features are identical to Amptwearker's popular TightRock, but the tone has been tweaked to extend the low range of the Tight and Tone controls, and they added a fixed Fat boost at the frontend for a slightly less aggressive attack, knocking the edge down, and boosting the lowend in the output EQ. The EQ switch converts the tone from the TightDrive EQ to a new PlexEQ which gives the pedal the classic vintage stack tones.The Gain Boost switch modifies the gain from a classic distortion sound to a very modern amount of gain, but doesn't color the sound of your amp as much as the TightMetal.
With the Gain Boost and EQ turned off the pedal can be used as a fat overdrive for an already distorted amp or pedal, without changing the character very much. The TightRock noise gate has also been retweaked to make it smoother, and to sound better with the reduced highs of the FatRock to allow it to work better for solos. Amptweaker's SideTrak effects loop can be used to add a compressor, chorus or chain of effects that only works when you play clean, or to switch to another distortion pedal to use for the rhythm sound; all without having to hit more than one switch. It s like having a built-in A/B box. A green LED alternates with the normal red one to indicate that the loop is active when the pedal is bypassed.Other great features on the FatRock include its Pre/Post switch, the LED illumination of the controls, and the Battery On/Off switch and 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.