I have a DD-15 and its great for movies, although my main speakers supposedly also go below 20Hz. If you can wait a bit, Velodyne was "supposed to" be coming out with the upgrade to the DD series for the past several years. My guess is the flat economy stalled things a bit.
2 benefits of waiting - if new models come out, they will be an improvement over the current DD series, and even if you decide against the new models, the existing DD series will get a lot more reasonable price-wise, and in a hurry.
2 benefits of waiting - if new models come out, they will be an improvement over the current DD series, and even if you decide against the new models, the existing DD series will get a lot more reasonable price-wise, and in a hurry.