I have a 12'' JL W6 and now need an amp. I can't decide between the JL 500/1 amp and the JBL GTO 600.1 amp. I did have a JBL amp with 2 12" IDQ subs and it sounded great but, my car stripped of EVERYTHING (not just stereo equipment) so I have none of that now //content.invisioncic.com/y282845/emoticons/pissed.gif.9f665f96bc89e98e708dabd4580bb591.gif I liked the JBL 600.1 I had, but I can't find that amp for sale anywhere now. I have also heard that JL subs sound the best with JL amps, but im not sure if that is true. Can anyone give me any suggestions on these amps? Thanks.