My Current set up is a LMIII going into a 8ohm 112 Avatar for smaller gigs, and the LMIII going into a 4ohm 410 Avatar for bigger gigs. I use a Am STD Fender Jazz and a MIM 50's P. My Jazz sounds Awesome to my ears, but the P' lacks the tone I need. I am in a 7 to 9 Piece band playing stuff by Chicago, EWF, Cocker, Beatles, Stevie Wonder, Mowtown.. ect. Is an Ampeg PF500 the answer??? I want to play my P more with this band..but I am having a rough time getting that Jamerson tone....But My Jazz almost nails it. I have played through Ampegs before and like the tone, but video clips I have seen of the PF500, they are more trebly sounding than say a Classic Ampeg tone. Anyones .02???