Supa-Boost in front of a Metro-Plex in '66 mode.
Later in the clip I turn on the built in boost circuit for comparison. To me, the added tone stack and buffer in the pedal offer a lot tonally over the built in circuit.
Also noticeable: the tone cleans up better with the pedal on.
Gain: varies from 1 o'clock to 4 o'clock
Bass: 1 o'clock
Middle: 1 o'clock
Treble: 11 o'clock