In 1979 Maxon Chief Engineer desinged an overdrive that would end up changing the sound of the Electric Guitar. That pedal was the Maxon OD808—licensed and distributed as the Ibanez TS808 Tube Screamer in America. 40 plus years later former Maxon Chief Engineer Susumu Tamura has perfected his overdrive sound in the TWA Chemical Z—PLUS added the now discontinued clipping diodes of his Maxon OD808X. Check out how it compares to a real Maxon OD808