Polk Audio Signa S3 front view with slim profile and wireless subwoofer for TV audio
Signa S3 sound bar with wireless subwoofer delivering deep bass in a living room
Signa S3 setup cables showing easy TV connection and clean cable management
Signa S3 mounted on wall under TV for space-saving setup
Chromecast built-in interface on Signa S3 for wireless music streaming
Dolby Digital decoding on Signa S3 enhances surround sound clarity
Voice Adjust feature on Signa S3 improves dialogue clarity
Compact Signa S3 design fits beside a TV with a low profile

Polk Audio

Polk Audio Signa S3 Sound Bar with Wireless Subwoofer, Chromecast Built-in & Google Assistant

Free U.S. shipping and free 30-day returns. Check the compatible models in the description below.

$479.72

In stock. Ships free, usually within 1–4 business days.

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Free tracked shipping on every order. Most orders arrive within 3–8 business days.

Free 30-day returns

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Return eligible items within 30 days of delivery for a full refund. We email you a prepaid return label.

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During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

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Questions about fit or an order? Email nexoltic@gmail.com. We reply on business days (Mon–Fri).

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Product details

Elevate your TV audio with the Polk Audio Signa S3

The Signa S3 pairs a slim, space-conscious sound bar with a wireless subwoofer to transform ordinary TV moments into immersive listening experiences. Designed to work with HD, 4K, and 8K TVs via HDMI ARC, it’s simple to set up and control, all from a single remote. With Voice Adjust and Dolby Digital decoding, you’ll enjoy clearer dialogue and rich, multi-dimensional sound that supports your favorite shows, movies, and sports without overwhelming your living space.

Key design and tech highlights

  • ULTRA-SLIM 2.1 CHANNEL SYSTEM: two mid-range drivers, two tweeters, plus a wireless 5.25” subwoofer deliver room-filling bass and crisp highs
  • VOICE ADJUST TECHNOLOGY: optimized dialogue clarity with three listening modes to suit dialogue-heavy scenes
  • Dolby Digital 5.1 decoding: enhanced surround-like sound without a separate home theater setup
  • LOW-PROFILE FOOTPRINT: only about 2” tall, designed to fit under most TVs and be wall-mounted
  • FLEXIBLE CONNECTIONS: HDMI ARC, optical, and 3.5mm inputs for easy TV and media device hookups

Smart features and ecosystem

  • Chromecast built-in for wireless music streaming from compatible apps
  • Google Assistant compatibility to control playback and search for content with voice
  • Bluetooth streaming from smartphones, tablets, and other devices
  • Works with many popular streaming services for music and podcasts

Real-life use cases

Whether it’s movie nights, late-night binge sessions, or weekend gaming, the Signa S3 aims to deliver clearer dialogue and deeper bass without dominating your room. The design keeps the TV’s bottom edge visible and IR sensors accessible, so your remote still works unimpeded.

  • Watch action movies with immersive, balanced sound and precise center-channel dialogue
  • Stream music from Chromecast-enabled apps for a quick home audio boost
  • Enhance sports broadcasts with clear commentary and dynamic bass during crowd noise
  • Place on a TV stand or mount on a wall for a clean, uncluttered setup

What’s in the box

  • Signa S3 sound bar
  • Wireless subwoofer
  • HDMI cable
  • Optical audio cable
  • Quick-start setup guide

FAQ

Q: Is the Polk Signa S3 compatible with my TV?

A: Yes, it works with most HDMI ARC TVs and supports 8K/4K/HD content.

Q: Does the Signa S3 include a wireless subwoofer?

A: Yes, the package includes a wireless 5.25-inch subwoofer for deeper bass.

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