I second the suggestion of multiple subs, and also Rythmiks. I went from one REL Storm to two Rythmiks and never looked back. On top of sounding great, Rythmiks (with their PEQ amp) have multiple setup options to help tailor to your room.
Consider also 3x12" Rythmiks, given your budget. Not that you need the SPL, but to help smooth the room response (especially interesting for HT). See Earl Geddes approach to setting up multiple subs. Works great for me.
JL subs are fantastic, but I'll take 2 Rythmikss vs 1 JL any day.
Consider also 3x12" Rythmiks, given your budget. Not that you need the SPL, but to help smooth the room response (especially interesting for HT). See Earl Geddes approach to setting up multiple subs. Works great for me.
JL subs are fantastic, but I'll take 2 Rythmikss vs 1 JL any day.