What is the recommended enclosure for the PBX XS15 with the 280oz magnet?

What enclosure do these work best in?

What sub would you compare these to?

size box & tuning all depends on vehicle & what you are looking to attain with them.

comaprison wise.....here is list of sube about the same that I have used:

Atomic AP with SPL motors (Atomics are .7 quieter & don't handle as much power)

American Bass VFL (almost identicle to the Atomics)

SoundStream T4 Tarantula (2db ish quieter & slightly less power handlng)

MTX 9500 dual 4 (MTX 3.5 quieter, but MTX sounds better & handles WAY more Power...they just take the power, but don't get any louder)

Memphis Mojo (.3 off of the Powerbass, & handles about the same power...we used the dual 2 mojo)

We have run the XS's in just about every setup imaginable. they seem to do the best with 1 XA-3000 to a pair of the 15. Here is a list of my #;s in my rex with a bunch of different amp setups. My box is 10cuft, & setup as a wall. tunes at 50Hz, & my burp note is 52Hz with 2 XS15D1's. all #'s are with the new TL

XA 2150 (300W rated figure around 1K at 17.5 V) 149.9

2 Interfire IFD1000C's (rated 900W total Power around 3500) 152.8

1 XA3000D (rated at 3KW on 12V) 154.7

4 Interfire IFD1000C's (around 7KW at 16.5V) 155.8..my usual setup

4 Powerbass XA-3000D's subs blew in less than 1 second, & swapped to the dual 2's for the show, & still blew both subs before we got the burp off, rolling onto it still pulled a 158.5......just a side note, about every 2-3 times we blow a sub with the 3000D's, we blow an amp

...BUT PB is AWESOME at getting us new amps

Do they perform well in medium to big sealed enclosures? I will be running a MMats 3000.05 amplifier. My car is a 1971 Impala with a huge trunk so i'm not really worried about space.