I was seriously waiting on you to comment on the fat sundown surround. Lol.I see you learned to included that standard surround label in your recommendations hahaha.
thats pretty sad man. Two of those ID max in a ported should be leagues louder on 2k rms. Should be breaking 145 db with two 12s on 2k, its a basic standard. I'd work on your enclosure skills and designs before buying random subs shoving it in a random box and only breaking 142db -143db on 4k rms. If your box game is not up to par, you should not be swapping gear.