Have an x-sub ordered, unfortunately it was delayed, but my roommate is willing to chip in an extra $100 if I get something bigger. I thought I saw the ULW-10 as a special offer through audioholics for $399. Can anyone point me to this or am I remembering things that didn't happen? If not, can anyone point me to the overall best sub I can get for under $400, its use is 80% music. I will be living in apartments for the next 5 years at least. Thanks!