Never heard the cap. I would like to one day. It seems like a great sub. For me, in my small room, the SubMersive HP does sound great with music. Craig did such a great job integrating with my 1027's that all it does is add weight to the music and does not call any atention to itself. Now, maybe because my room is small, but the HP is just fantastic for movies as well. It has scary output for me. But I have to also say the SQ for movies is also very good.
I honestly think that sometimes we get silly and way to attached to our own gear. It is always situation based. There will be some times when the Cap will work better and there will be times when a SubMersive will work better. That does not mean, at least in my eye, that one buries the other. It has been shown that both subs are at or near the top of the food chain. I can be happy for someone who has a Cap and loves it. I think it's great if it works out that the Cap works for some people over a SubMersive. That doesn't mean that my SubMersive HP is all of a sudden no good. It just means that it is no good for that person. Would I change subs? Nope. I just don't see how I could get the perfomance I am getting in a sub that is the same form factor as a SubMersive. Like it has been mentioned before, if I move to a bigger room and I feel it is lacking, I would just get another one. Anyway, Carp, looking forward to your thoughts with the SubMersive for music AND movies. Who knows, if you get another one so you have duals, then that would be very interesting to hear your thoughts. Anyway, I look forward to reading about your experince with the SubMersive HP. Also, I think it would be cool to try both DSP's, as Mark noted above, and see which you like better.