The Polk Audio MXT70 is a large, floor-standing tower speaker designed for high-resolution home theater and music listening. It features dual 6.5-inch woofers and dual 8-inch passive radiators for powerful bass, a 1-inch Hi-Res Terylene dome tweeter for clear highs up to 40kHz, and a low-resonance cabinet for audio purity. It is compatible with Dolby Atmos, DTS:X, and Auro 3D, as well as 4- and 8-ohm amplifiers.