Thank you all for your comments, all of which are very helpful. I will definitely try adding a separate amp down the line and using the NAD I have as a preamp - I'm glad that is possible. Lloyd, I will take you up on raising the sub - that sounds like an interesting and worthwhile thing to try.
I still am debating SVS SB 2000 vs Hsu VTF 15H vs Hsu ULS 15. My needs are music oriented rather than HT. Any comments specific to these three choices for music rather than HT would be most welcome, to help me with my decision. Thanks again all!
I still am debating SVS SB 2000 vs Hsu VTF 15H vs Hsu ULS 15. My needs are music oriented rather than HT. Any comments specific to these three choices for music rather than HT would be most welcome, to help me with my decision. Thanks again all!