Get him an EP500 as well. My good buddy was over last night and heard my tweaked EP800v4 for the first time. He then went home and compared with his two subs and is deeply sad (truly). Not sad about the difference in power but the vast difference in accuracy/refinement. You hear things with the 800v4 that you couldn't even imagine with lesser subs. I am sure the 500v4 is the same but of course it doesn't go as deep or as loud in a larger space.
I'll e-mail you some info related to what I tweaked. You might find it interesting since you're in the business.
The 800v4 will be my burial casket. I'll have solar connected to it so it can rock my bones as I greet Hades.
