It's amazing. It's actually build from old Siemens Telefunken transistors from the 60ties. There is like 10 in there. It's the most powerful distortion you can have. It does not only do distortion, it does so many weird things. You can't control it, it's sound different all the time. But it's an endless source for fantastic sounds. For example the track "Transit" is entirely made with this box. You have to put the guitar sound in. It's like a pedal.