I'd like to perform a modification to my guitar, as I like feedback that much. I want to be able to make my guitar feedback for infinty, when I move in the right place on stage. I like the zappa tone, but I want the same output level that he had on his guitars, yet with keeping my guitars distinctive unique tone. Is there any way I can perform a mod that will make my guitar sound like a monster by making the inbuilt electronic output 18dB louder, without getting a specialist to do it? and without paying (as I am broke)