Polk announced a gaggle of new products, including a redesigned RTi series and 10 new powered subwoofers. Shown here is the line-topping DSW microPro series subs, in 8", 10" and 12" sizes, with the largest priced at $1850. The DSW microPro is said to compensate for room modes without using equalization. How it does this would take more time to explain than a blog provides, but suffice it to say that it involves clever use of inverse phase. Polk also showed the CSW 155 in-wall sub ($1400 with external amp).