Description
Polk Audio Signa S4D Powered 3.1.2-Ch Dolby Atmos Sound Bar and Wireless Subwoofer System with Bluetooth
The Polk Signa S4D soundbar brings Dolby Atmos 3.1.2 audio to your home in a slim, sophisticated package. Engineered for immersive 360° sound, its seven-speaker array, complete with dedicated height speakers, creates a multidimensional listening experience. Whether you're watching the latest blockbuster or gaming with friends, you'll feel completely surrounded by sound. With a wireless subwoofer and patented VoiceAdjust technology, the Signa S4D ensures deep bass and crystal-clear dialogue without the need to continuously raise overall volume. Easy HDMI eARC, optical, and aux connections make it compatible with virtually any setup, while Bluetooth lets you stream music directly from your favorite devices. Night Mode tones down bass and enhances speech for quiet, late-night viewing. The Signa S4D’s exclusive online finish adds aesthetic distinction to your home audio setup. Engineered in Baltimore, Maryland, every Polk product reflects a heritage of audio excellence. Backed by 50+ years of innovation, the S4D is more than a sound bar, it's a high-fidelity sound system built for today’s smart home entertainment systems.
Product Highlights:
- Sound bar and wireless subwoofer
- 3.1.2-channel sound with Dolby Atmos processing
- Built-in Bluetooth for wireless music streaming from compatible smartphones, tablets, and computers
- BassAdjust™ boosts bass output of the sound bar and sub
Sound bar:
- Built-in seven-driver speaker-array:
- Two midrange drivers and two tweeters
- Dedicated full-range center channel
- Two up-firing drivers for overhead effects
- VoiceAdjust technology boosts the volume of voices for crystal-clear dialogue
- Night Mode lowers bass output and increases VoiceAdjust without raising the overall volume
- Easy-access top-panel controls
- Wall-mountable
- 41-1/8"W x 2-1/2"H x 3-13/16"D
Subwoofer:
- 5.9" down-firing woofer
- Bass-reflex (ported) cabinet design
- Connects wirelessly to sound bar for easy placement
- AC power connection required (power cable included)
- 7-7/8"W x 12-15/16"H x 12-13/16"D
Connections:
- 1 HDMI port (cable included)
- Supports enhanced Audio Return Channel (eARC)
- Optical digital audio input (cable included)
- 3.5mm analog audio input
- USB-A input for firmware updates
General info:
- Designed in the USA
- Includes remote control
- Warranty: 3 years (speakers); 1 year (amplifier)
- Our 30-day money back guarantee
- MFR # Signa S4D
What's In The Box:
-
Polk Audio Signa S4D owner's manual
- Active soundbar speaker
- Wireless powered sub
- Two 59" AC power cords
- Remote control
- 2 "AAA" batteries
- 57" HDMI cable
- 68" Optical digital cable
- 2 Wall-mount spacers
- Wall-Mount Template
- Quick Start Guide
- Safety Instructions
- Important Product Information
- Registration Information
Additional Information
Reviews
My Wishlist
Wishlist is empty.




