Def tech supercube reference or REL R-528

Hello all. Im more geared toward music now but I do love watching movies as well. Ive read the REL is the more musical of the two but the Def Tech is much better for theater. Ive also read quite a few reviews by users and mags that say the SC Reference is musical. At this point anything would be better than the BA sub I have now.

However, since both 2k or more my question is:

(1) Can I get away with the less costly Supercube Reference with music or will it leave me craving the REL?

(2) Will the more expensive REL satisfy my music craving but leave me wanting on the theater side of things?

(3) Which one would satify both sides better and be a better foundation for future speaker upgrades?

I sure wish there was one product that offers the absolute best of both worlds.