I have been doing a lot of thinking about what SV subwoofer to get. MY situation is one where I can't play movies or music very loud. I was basicly wondering if I would still get deep satisfying bass from an SVS 1646 CS sub at low volume levels. My other concern is that unless I can grab a b-stock or used 1646 CS I will have to run the sub with a really old pioneer stereo amp that is only 30 watts a channel at 8 ohms. I know the amp is bridgable, but that would still wouldn't be very many watts and I worried that it wouldn't be enough power. I do plan on upgrading to a quality amp sometime during the summer so the amp situation would only be temporary. I know that I want a 1646 model as I really treasure the lowest notes. The sub I have now is an old dbx sub. It can get to reference levels (thanks to my apartments acoustical qualities), but it won't go lower then 27 hz without a large drop off in volume. I would appreciate any feedback from 1646(cs or pci) owners about how the sub sounds at lower volume levels.