RE Audio is the shiznit.
The SE series is more apt to SQ setups than SPL. If you want SPL look into the SX line- in the same $ neighborhood. If you got $$$ to spend, MT and the XXX is where its at.
The prices are insane now that RE was bought out by US Amps. The prices have doubled! No joke.
A better alternative thats cheaper:
www.fiaudio.com
Thats the guy that designed all them subs for RE. He parted ways, RE sold out- now he has his very OWN company. THe prices he has is pretty decent.
www.tcsounds.com puts out a wide offering and excellent products as well.
www.ascendantaudio.com is yet another...
dont forget
www.elevationaudio.com Joe Belmonte has a decent lineup thats keeps evolving!