What Fuzz is all about The pedal that really changed it all was the Sola Sound Tone Bender. You can hear it in hits by the greatest guitar players of the mid â60s and easily understand what the fuss was all about, it was about Fuzz! So here we have a beautiful part of historic fuzz tested on bass guitar, most people will never get a chance to try this combo but now you can every day if you like! VOX (JMI) wanted a piece of the pie and produced their version of the Tone Bender by JEN in Italy. The pedal we have demoed is all stock from around 1968-9. It uses the SFT363 and SFT337 germanium transistors and sounds incredible, though different from the original Sola Sound Tone Bender which uses a pair of OC76.