SVS PB-4000 - W61 Official Store : Inspired by LnwShop.com
SVS - Continuing its world tour of low frequency domination, the SVS SB-4000 subwoofer was reviewed by Homecinema Magazine, in the Netherlands, and left a surprising impression, “With the SB-4000 you get
SVS 4000 Series Subwoofer Technology Overview - YouTube
SVS Announces Advanced New 4000 Series Subwoofers | Digital Trends