Here’s an old idea and project that lacked value from a previous post. It sounds good but need attention and care on the treble side. The pain in the ass is R5 (preferably a multitour pot) which needs to be set in order to get the mosfet conducting and a good signal at Q1’s drain.
All the previous blabla still applies, this is more a pratical example. Feel free to try it and experiment with it and share the result if you wish.
previous post –> https://smokingtip.wordpress.com/2013/08/30/jfetmosfet-ovedrive/