"The Jan Ray was designed to recreate the punchy clear tone of the Blackface Fender amps from the 60's. So-called the 'Fender Magic 6' sound. An easy to handle overdrive keeping the characteristics of the guitar with great sustain without any unnatural compression. The end result is an ultra-smooth drive that retains the Tube Screamer’s trademark mid bump; however, it opens it up with the full-range clarity of the Jan Ray."
There are a few clones of this pedal out there, and it is better known than the TSV808, but for this build I'm also using one of the brand new Tone Geek boards - the Black Triangle project.