The Trefilio Joost is a clean boost pedal designed to be organic and sensitive in the entire frequency spectrum and volume range. Using discrete architecture and JFETs, the instrument's sound is preserved thanks to the input stage and subsequently amplified up to 27dB running at 9V. If you're using a 18V power supply, the volume gain can reach up to 35dB!
The Joost provides you with a unique and very special sound experience.
True bypass, high-quality electronics and connectors.
Handcrafted in Brazil. Lifetime Warranty offered by the manufacturer after serial number register.