John Mayer Two Rock Signature: Behind The Build

John Mayer Two Rock Signature: Behind The Build

December 23, 2022

Now that I am a little bit more experienced in amps after my first amp build, I decided to go with one of the most famous sounds of all time: The Dumble sound. This amp is modeled extremely closely after a Two Rock Custom Reverb Signature, which, gets extremely close to the clean Dumble Steel String Singer sound.

Picture of my completed John Mayer TR Signature build

This amp is built to be two main things: clean and powerful. While the fender amp breaks up around 5, this amp is meant to stay clean with minimum breakup. You will notice that the extremely professional-looking casing for this amp is covered in teal suede. This is supposed to replicate the appearance of Steel String Singer #004 before it was re-covered by Mayer.

http://www.amparchives.com/folder/2542 Dumble SSS#004

Unlike the Deluxe Reverb I previously built, this amp has a 3 tube reverb circuit. This means that 1.5 tubes act as the reverb driver and 1.5 tubes act as the reverb recovery. This, in combination with the 3-spring reverb tank provides an extremely lush, full reverb sound.