POLK AUDIO SIGNA S4 Soundbar and Subwoofer Bluetooth the Sub1 subwoofer combines with

the Sub1 subwoofer combines with virtually any portable PA and delivers low-end performance down to 40 Hz

while customizable strobes and patterns dazzle your eyes

Contrast Ratio: 100

1 x Optical TOSLINK

Twice as immersive

POLK AUDIO SIGNA S4 Soundbar and Subwoofer Bluetooth the Sub1 subwoofer combines withPOLK AUDIO SIGNA S4 Enjoy the latest blockbuster releases, immersive music, and your favorite TV shows in the amazing 3D sound provided by Dolby Atmos and the Signa S4. TRUE DOLBY ATMOS SURROUND SOUND LIFELIKE CINEMATIC AUDIO Signa S4 is Dolby Atmos Certified* to immerse you in 360 degrees of surround sound. From added ambience in music to special effects flying overhead, Signa S4 provides an incredibly realistic sound environment. Plus, standard