DD-12 Vs. DD-15


I really don't know which one to get...Is it true that the DD-15 is not THX certified? I like the smaller 12" but am wondering if the 15 is a significant step up. Thoughts?
slov_dream
Music is first and foremost the most important...but I don't want it to choke up for movies.
I have the DD-15 and think it's a great deal. More than enough for my room. I called Velodyne and talked with them for a while and they said it is highly unlikly anyone would not think the 15 is not enough.
While I am sure that the DD-15 is, indeed, more than up to just about any job, I would just add that the DD-12 that I have in my system is also quite the overachiever. My room is not huge, but it does have significant bass-suck issues, and the DD-12 corrected all of those for me, and is barely coasting along (compared to its capabilities).

Either would be a good choice, I'll wager.
If music is primary - go with the 12 or a pair of 12's. It will be faster and you will not lose much, if anything for movies.
Provided both are well designed, a 12" would not be "faster" than a 15". The Velodyne DD-18 and the Bag End S18E, for example, are as fast as they need to be to keep up with any speaker, even Quads.