I need some help regarding the use of pedals or gear. I presently have an L2000 that I play through a yorkville BM400 combo with a yorkville 410 extension cabinet. I have lots of power but I can never get the punch and definition I want. Is there any pedals or preamp i can use to assist me to get a more defined and punchy sound. I don't really want to part with my amp and I can't afford an EDEN or a Mesa Boogie. Any advice on what I can add would be helpful.