The fatter/darker FatRock version of the TightRock, can be used as a preamp into an amp’s effects return or power amp.

Since its introduction, the TightRock has been very popular, but as usual Amptweaker received many requests for a variation…..the new FatRock is the culmination of discussions on online forums, from players who wanted a warmer version that worked better with brighter guitars and amps. All features are identical to the TightRock, but the tone has been tweaked to extend the low range of the Tight and Tone controls, add 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.