The MXR M-104 DISTORTION + Guitar Pedal can be set to produce low volume controllable distortion or increased to achieve a warm tube overdrive. Maxed out the MXR M-104 Pedal produces an extreme fuzz with long sustain.
Thom was first seen with an MXR M-104 Distortion + Guitar Pedal in photos on DAS from the recording of In Rainbows. He used on the In Rainbows tour, and later for the 2010 Atoms for Peace tour. It can be seen on the main board in the source photo, second from right. The MXR Distortion + is also listed as part of Thom's gear on [fan sites](http://thekingofgear.com/thom#pedals).more