Analog Man mod on the Electro-Harmonix East River Drive.
We helped EHX with the design for the East River Drive, it's a TS808 with all the right parts and true bypass.
This mod doubles the amount of gain and adds girth and saturation to the sound. It also adds two new clipping options
Up - LEDs are louder
middle - no clipping diodes for loudest, least compressed sounds
Down - normal Tube Screamer silicon diode clipping