In The Words of Catalinbread

The Formula 5F6 adds vintage tweed Bassman response to our range of

Foundation Overdrives, giving you the awesome characteristics of this

classic amp into any clean amp.

The Formula 5F6 lends itself to almost any musical style, from

the classic Strat – Bassman blues tones of Buddy Guy and Otis Rush to

artists like Jimmie and Stevie Ray Vaughn, Robbie Robertson, Robben

Ford, all the way to heavier styles by stacking boost, overdrive, or

fuzz pedals into it. Dont worry, the Formula 5F6 wont just make you

play old music! It will take you where your imagination takes you!