wow, thats alot for a sub... I have polkaudio's lowest range sub.. the PSW10. I think i bought it for around 110 dollars and imo its more than good enough for anyone with a regular home theatre system. I can't see anyone needing a DSW600 unless they are rocking an audiophile setup in a very large area. You'd have to be a baller balla to spend 400 dollars on a subwoofer.