Monster THX Select Certified Tower Speaker- Cherry (THX SL200-TWR) (Discontinued by Manufacturer) Dimensions: 16.75" L X 16.75" W X 47" H THX Select certification delivers movie theater quality sound in the comfort of your own home. Curvilinear enclosure cancels standing waves for clear imaging and a deeper, more precise soundstage. 1" silk dome tweeter provides extremely detailed highs, transparent sound, and precise point-source imaging. Three ultra-responsive 7" Kevlar drivers for clear dialogue and clean, tight bass.