Glad to see some coverage for the PSA subs. I'm looking into the XS15se as a replacement for my PWR surge damaged Carver Cinema Sub (which is/was 17 yrs old anyway). It was well past a renewal and I think I got my $ worth from the Carver. I was visiting PSA's website and engaged in a chat on their site where they recommended to me the sealed vs. ported version I was initially looking at due to my smallish (2400 cu ft) room size as well as my Infinity Kappa 7.1 mains and planned Denon AVR X4000 receiver.