Signa S4D’s two dedicated upfiring speakers deliver Atmos “height” sound, for an incredibly lifelike 360-degree sound field.
“Polk Audio makes some of the best sound bars on the market, and the new Polk Audio Signa S4 lives up to your high expectations—that’s why we named it the best sound bar for your home theater.”
Experience Dolby Atmos 3.1.2 sound, thanks to Signa S4D’s advanced seven-speaker array with a dedicated center channel and upfiring “height” speakers for 360 degrees of sonic immersion. It’s truly cinematic sound that draws you into every song and every scene.
“2022 Best Soundbar Subwoofer Combo”
Polk’s patented VoiceAdjust technology lets you raise the volume of speech above the rest of the soundtrack, making voices clear and easy to understand. You’ll never have to ride the volume control, and you’ll never miss a word again.
“The Polk Signa S4 sound bar offers excellent Dolby Atmos performance and musical replay at the best price yet.”*
Signa S4D’s Music, Movie, and Night Modes optimize your sonic experience for any scenario, from movies to TV to games. Late-night binging? Your neighbors will never know: Night Mode brings down the bass while boosting dialog so you—and only you—can hear every word.
Bring arena vibes to your living room with powerful, room-shaking bass, thanks to Signa S4D’s companion wireless subwoofer. Place the subwoofer anywhere in the room and use Signa S4D’s BassAdjust mode to dial in seamless sound balance in this perfect pairing.
“In terms of sheer audio bang for your buck, it doesn't get much better than the Polk Signa S4 sound bar.”**
Get up and running in seconds—even with 8K Ultra HD TVs—using Signa S4D’s included HDMI or optical cable; for older TVs, simply connect your aux in. Signa S4D automatically works with leading TV remotes and effortlessly streams your favorite music via Bluetooth.
Enjoy multidimensional Dolby Atmos 3.1.2 surround sound, without investing in a room full of speakers.
50 years, hundreds of thousands of speakers, and countless awards later, we are still focused on our mission of giving you the absolute best sound for your money. Great Sound for All.
|Sound Bar:||41.2 x 3.7 x 2.4”
1046 x 95 x 60mm
|Subwoofer:||7.9 x 12.9 x 11.0”
200 x 328 x 280mm
|Sound Bar:||L/R Tweeter: (2) 1” / 25mm (Round)
L/R Mid: (2) 4.7 x 1.6” / 120mm x 40mm (Racetrack)
Full Range Center: (1) 1” / 25mm (Round)
L/R Elevation: (2) 2.6” / 66mm (Round)
|Subwoofer:||Woofer: (1) 5.9” / 15cm (Round)|
|Inputs||(1) HDMI (eARC)
(1) Optical input
(1) Analog 3.5mm input
(1) USB-A (for firmware updates)
|What’s in the Box:||• Sound Bar
• Remote Control
• Sound Bar Power Cord
• Subwoofer Power Cord
• HDMI Cable
• 2x AAA Batteries
• Quick Start Guide
• Registration Card
• Safety Card
• Wall Mount Template
• Wall Mount Spacers
Create a PolkAudio account to receive offers, news and product updates.
If you already have an account, click here to sign in.