Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer, Wireless – Exclusive VoiceAdjust Technology, Ultra-Slim Design, Works with 4K & HD TVs, HDMI & Optical, Bluetooth, Wireless Streaming
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AI Verdict
This is a no-fuss soundbar and subwoofer combo that's a massive and immediate upgrade over your TV's built-in speakers, especially for making dialogue easier to understand.
This product is a strong fit for its intended audience: someone who wants a dramatic, easy, and affordable improvement over their TV's terrible built-in speakers. The inclusion of HDMI ARC, a wireless sub, and especially the effective VoiceAdjust feature directly solves the most common complaints about TV audio (muffled dialogue, no bass) with minimal fuss.
If you want a more immersive cinematic experience, look for a soundbar that supports Dolby Atmos and includes up-firing speakers or optional rear surround speakers.
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Pros
- Polk's VoiceAdjust technology genuinely makes dialogue clearer and is a standout feature for many users.
- The ultra-slim, 2-inch tall design fits under most TVs without blocking the screen or IR sensor.
- Setup is incredibly simple with included HDMI ARC and optical cables, making it a true plug-and-play system.
- The wireless subwoofer connects automatically and adds significant bass impact compared to TV speakers.
- Includes Bluetooth for easy music streaming directly from a phone or tablet.
Cons
- Lacks DTS decoding, only supporting Dolby Digital, which it downmixes to 2.1 stereo.
- The included remote is small, feels cheap, and isn't backlit, making it hard to use in the dark.
- No Wi-Fi connectivity, which means no support for Chromecast, AirPlay 2, or multi-room audio systems.
- The subwoofer's bass can sound boomy or disconnected, and lacks deep sub-bass rumble for cinematic impact.
- There is no on-screen display; settings are indicated by a simple row of confusing LED lights.
Dimension Scores
It's a huge upgrade over TV speakers with excellent dialogue clarity thanks to VoiceAdjust, but the V-shaped sound isn't ideal for music.
The wireless sub adds a good amount of punch for movies and gets loud enough for most rooms, though the bass lacks deep rumble and can distort at max volume.
It covers the essentials with HDMI ARC, Optical, and Bluetooth, but lacks a second HDMI input or any Wi-Fi streaming options.
The bar's slim profile is great, but the overall plastic construction and tiny, cheap-feeling remote are common complaints.
Best For
- Upgrading the audio in a bedroom or small-to-medium-sized living room.
- Anyone frustrated with muffled dialogue in modern movies and TV shows.
- A simple, plug-and-play audio solution for non-tech-savvy users or as a gift.
- Dual-use as a TV speaker and a basic Bluetooth speaker for casual music listening.
Not Recommended For
- Audiophiles seeking high-fidelity music reproduction or a neutral sound profile.
- Movie lovers who want a true, immersive surround sound experience with Dolby Atmos or DTS:X.
- Users who want to build a smart, multi-room audio system.
Watch Out For
- The auto-standby feature, which turns the bar off after 15 minutes of inactivity, can't be disabled and can be annoying.
- Some users report the wireless subwoofer randomly losing connection, requiring a manual re-pairing process.
- The different sound modes (Movie, Music, Night) and VoiceAdjust levels are mutually exclusive; you can't use Night Mode and VoiceAdjust at the same time.
- The LED status lights are not intuitive and the manual does a poor job of explaining what different combinations mean.
Full Specifications
| ASIN | B07H1B3PY9 |
| Brand | Polk Audio |
| Color | Black |
| Shape | rectangular prism |
| Style | S2 Soundbar + Subwoofer |
| Material | Plastic |
| Set Name | Polk Audio Signa S2 System |
| Model Name | SIGNA S2 |
| Unit Count | 1.0 Count |
| Item Weight | 3.9 pounds |
| Manufacturer | Polk Audio |
| Power Source | AC |
| Speaker Size | 2 Inches |
| Speaker Type | Soundbar, Subwoofer |
| Is Waterproof | FALSE |
| Maximum Range | 7 Meters |
| Mounting Type | Bar Mount,Tv Sound Bar |
| Warranty Type | Limited |
| Control Method | Remote |
| Bluetooth Range | 10 Meters |
| Number of Items | 1 |
| Special Feature | VoiceAdjust |
| Woofer Diameter | 5.25 Inches |
| Tweeter Diameter | 2.54 Centimeters |
| Audio Driver Size | 5.25 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Item model number | AM6214-A |
| Compatible Devices | Smartphone, Tablet, Television |
| Frequency Response | 20 KHz |
| Product Dimensions | 3.31"D x 35.43"W x 2.15"H |
| Subwoofer Diameter | 2 Inches |
| Included Components | 5' (1.5m) HDMI cable, 5' (1.5m) Optical cable, Literature, Remote, Two power cords and sound bar, power supply |
| Water Resistance Level | Not Water Resistant |
| Connectivity Technology | wired, wireless |
| Specific Uses For Product | Home Theatre |
| Recommended Uses For Product | For Surround Sound Systems, For Smartphones or Tablets, For Televisions |
| Speaker Maximum Output Power | 25 Watts |
| Is Discontinued By Manufacturer | No |
| Subwoofer Connectivity Technology | Wireless |
| Wireless Communication Technology | Bluetooth |
| Surround Sound Channel Configuration | 5.1 |
What Buyers Say
The most consistently praised feature is Polk's VoiceAdjust technology, which makes dialogue noticeably clearer, solving a huge frustration for many when watching modern shows and movies. Setup is reported to be incredibly fast, often taking just a few minutes using the included HDMI ARC cable. While it's a massive step up from TV speakers, it's not a true home theater system; it lacks real surround sound and the bass from the wireless sub can be a bit boomy and unrefined. Some users find the aggressive auto-off feature and the tiny, flimsy remote to be daily annoyances.
“i can finally hear what they're saying in movies without reading subtitles but the explosions still shake the living room, it's not perfect but for this price it saved my sanity.”
Common Praise
- The VoiceAdjust feature is a game-changer for making dialogue crisp and clear.
- Setup is incredibly easy, especially with HDMI ARC for single-remote use.
- The slim design fits perfectly under the TV without blocking the screen.
- It's a fantastic value, providing a significant audio upgrade for a budget-friendly price.
- The wireless subwoofer is easy to place and adds a satisfying amount of bass for movies.
Common Complaints
- The remote is tiny, feels cheap, and is easy to lose.
- The subwoofer can sometimes sound boomy or muddy, not cleanly integrated with the soundbar.
- The auto-power off after 15 minutes is frustrating and cannot be disabled.
- It lacks true surround sound, as it's only a 2.1 channel system.
- The LED indicator lights for status and volume are confusing and poorly explained.
- Subwoofer can randomly disconnect and require re-pairing.
Ownership Tips
- You'll end up using the 'Voice' button on the remote more than any other setting, as it's the bar's biggest strength.
- The fabric grille covering the soundbar is a major dust and pet hair magnet that requires frequent cleaning.
- The 15-minute auto-off becomes a noticeable annoyance during quiet movie scenes or if you pause to grab a snack.
- You might find yourself manually re-syncing the subwoofer every few months, especially after a power outage.
- The 'Night Mode' is genuinely useful, effectively lowering bass and boosting dialogue for late-night viewing without waking others.
Frequently Asked Questions
Can I add wireless rear speakers to the Signa S2 for surround sound?
No, the Signa S2 does not support the addition of wireless surround speakers. Only Polk's Magnifi and React series soundbars have that capability.
Does the soundbar turn on automatically with my TV?
Yes, if you connect the soundbar to your TV's HDMI ARC port, it will power on and off with the TV and allow you to control the volume with your TV remote.
Can I adjust the bass level of the subwoofer?
Yes, the remote control has separate buttons for adjusting the bass level up or down to your preference.
What do I do if the wireless subwoofer stops working?
First, try unplugging both the soundbar and subwoofer for 30 seconds. If that fails, you can manually re-pair them by pressing the sync button on the back of the sub, then pressing and holding the Bluetooth and Volume+ buttons on the soundbar.
Does this soundbar have an auto-off feature?
Yes, the Signa S2 will automatically power down after about 15 minutes of inactivity and this feature cannot be turned off.
Can I mount the Signa S2 on the wall?
Yes, the soundbar has keyhole slots on the back for wall mounting, but mounting hardware like screws is not included in the box.
Do I have to use the HDMI ARC connection?
No, while HDMI ARC is recommended, the soundbar also includes an optical audio input and cable for TVs that don't have an ARC port.
Buying Guide
When you're shopping for a soundbar in this price range, your main goal is to fix the two biggest problems with TV speakers: weak bass and muffled dialogue. The Signa S2 is built specifically for that. Don't expect it to sound like a multi-thousand dollar home theater. Focus on features like HDMI ARC, which lets you control volume with your TV remote, and dialogue enhancement, which this bar calls 'VoiceAdjust'. That's what will make the biggest difference in your daily viewing.
VoiceAdjust Technology
This is like having a separate volume knob just for voices. It lets you turn up dialogue without also cranking up the volume of explosions and background music, which is a common problem in movies.
Wireless Subwoofer
This separate, boxy speaker produces the deep bass sounds (rumbles, explosions) that a slim soundbar can't. Because it's wireless, you can place it anywhere in the room with a power outlet without running a cable back to the TV.
HDMI ARC
This stands for 'Audio Return Channel'. It's a special HDMI port that sends audio from your TV to the soundbar and lets you control the soundbar's power and volume with your TV remote. It simplifies your setup down to a single remote for everyday use.
Alternatives
If you want a more immersive movie experience, search for soundbars that specify 'Dolby Atmos' support and have 'up-firing drivers' or optional 'rear satellite speakers'. If high-quality music streaming is a priority, look for models with 'Wi-Fi connectivity' that support services like AirPlay 2 or Chromecast.
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