What size JL sub is that? They make any good 8" subs??? Not sure why I'm on a kick for something small. Use to love 12"s. then it was 10"s I had a thing for, but I think it's impressive when you have great sound and everyone's impressed and then you pop the trunk and they're really shocked by an 8". I know my home theatre sub can't be compared as a comparison to car audio but I had a single 12" Klipsch sub that I thought sounded good, it was ported, but now I have a Velodyne 8" sealed sub with a 1000 watt rms amp and its more refined, not bloated or boomy