Definitive Technology's SR-9040 bipolar surround speaker will instantly immerse you in every high-speed car chase, high-impact explosion, crystal clear dialogue to take your movies up a notch. Features BDSS (Balanced Double Surround System) technology drivers – (2) 1" Aluminum Dome tweeters & (2) 3.5" mid drivers that deliver remarkable, room-filling sound and perfectly reproduce even the most demanding audio content. Using left- and right-firing driver arrays that radiate full-range sound in an omni-directional pattern, the SR-9040s provide an enveloping listening experience that goes beyond ordinary surround speakers. Its Bipolar speaker dispersion pattern provides enveloping surround sound, tremendous dynamic range as well as true high-definition sound quality. This speaker comes in a minimalistic, timeless design that complements your home décor perfectly. Pair a couple of these bipolar surround speakers with any Bipolar Tower Speaker (BP9020, BP9040, BP9060) & Center Channel (CS9040, CS9060, CS9080) to create a three-dimensional system for a room-filling home theater experience.