Information
Joyo
Classic A circuitry, a flip of the switch gives you up to a 35dB boost. Supports a maximum input of 18V DC voltage. True bypass design.
Video
(2012-06-08) Joyo - Roll Boost Pedal - JF38 by cranbournemusic
(2013-06-26) Joyo Roll Boost - Pedal Demo - Boosting 7 different Amps !!! by EytschPi42
(2014-11-29) Joyo Roll Boost effects pedal demo and review by Krachwerke
(2015-02-16) Joyo Quickies - Roll Boost - Series 2 by EytschPi42
(2020-07-20) Why use a boost pedal? - The Joyo JF-38 Roll Boost by PJ and the Beard

