Well the SE is a great sub, my brother has one, and it is ported, tuned to 32hz, cant remember exact box size but it is right around 2.0 cubes...and it is insane. However, they shine in ported box much more so than sealed, so bear that in mind with your space requirements. There is an IDMAX with 6 hours of playtime on it over on DIY for $200 shipped that I would take a real hard look at.