Catalinbread Formula No.5


Greasy vintage 50’s tweed! 

The Formula No. 5 was inspired by old tweed amps.  The unique qualities of these amps were captured  in the Formula No. 5. For this,  cascaded JFET gainstages yielded the best result. They have a softer sound than MOSFETs. JFETs also have much more natural attack/decay than diode clipped rigs which are pingy on the attack and fizzy on the decay.  The chosen capicitor types  enhance the midrange and burnish the treble.
  • Tweed amp sound
  • Tone circuit functions as a bright cap or treble rolloff depending on Gain.
  • Great foundation for fuzzes and boosts.