# Polk Audio Signa S4 Soundbar with Wireless Subwoofer 3.1.2 Channels

**URL:** https://aio.lv/en/product--polk-audio-signas4--12516931
**Data updated:** 2026-06-12 15:51 (EEST)
**Category:** Speakers
**Manufacturer:** polk audio
**Manufacturer code:** SIGNAS4
**EAN:** 0747192135850
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 297.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 245.86 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--polk-audio-signas4--12516931

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

The Polk Audio Signa S4 is a 3.1.2 channel soundbar system featuring Dolby Atmos support for immersive audio. It includes a separate wireless subwoofer for deep bass performance. With versatile wired and wireless connectivity, this black soundbar is designed to enhance home cinema experiences, providing clear dialogue and cinematic sound quality for movies, music, and gaming.

## Long description

The Polk Audio Signa S4 is a 3.1.2 channel soundbar system engineered to deliver an immersive home cinema experience. Featuring advanced Dolby Atmos support, this system creates a 360-degree soundstage that brings movies, music, and gaming to life with cinematic clarity. The package includes a dedicated wireless subwoofer that provides deep, impactful bass, ensuring a balanced and powerful audio performance for any living space.
Advantages
This soundbar system excels by providing a true 3.1.2 channel configuration, which includes dedicated height channels to fully utilize Dolby Atmos technology for overhead sound effects. The inclusion of VoiceAdjust technology ensures that dialogue remains crisp and intelligible, even during intense action sequences. Furthermore, the wireless subwoofer offers flexible placement options, allowing users to position it anywhere in the room without the clutter of cables, while the system's low-profile design ensures it fits discreetly beneath most televisions without obstructing the screen or infrared sensors.
Suitable for
Enhancing home theater audio for movies and television shows
Immersive gaming experiences with 3D spatial audio
High-quality music streaming via Bluetooth
Improving dialogue clarity for news and talk programs
This system may not be suitable for users seeking a full surround sound experience with physical rear speakers, as it relies on virtualized processing for its surround effects. Additionally, it might be less ideal for very large, open-concept rooms where a more complex multi-speaker system would be required to fill the space effectively.
Key specifications
Audio channels: 3.1.2
Audio decoding: Dolby Atmos
Connectivity: Wired (HDMI eARC/ARC, Optical, Aux) and Wireless (Bluetooth)
Subwoofer: Separate wireless unit with 15 cm (5.9 inch) woofer
Tweeter size: 2.54 cm (1 inch)
Color: Black
To set up the system, connect the soundbar to your television using the provided HDMI cable via the eARC or ARC port for the best performance. If your TV lacks these ports, you can use the optical or auxiliary inputs. Once connected, the wireless subwoofer will automatically pair with the soundbar upon power-up. You can then use the included remote or your existing TV remote to adjust volume, select sound modes, and manage bass levels to suit your preferences.
What to consider before purchase
Ensure your TV has an HDMI eARC or ARC port to fully support Dolby Atmos functionality.
Verify that the physical dimensions of the soundbar fit your TV stand or wall-mounting space.
Consider the placement of the wireless subwoofer to ensure it has access to a power outlet.
For the best audio performance, place the subwoofer in a corner or near a wall to enhance bass resonance. Regularly update your TV firmware to ensure seamless communication between your television and the soundbar via HDMI.

## Specifications

| Feature | Value |
|---|---|
| Number of full-range drivers | 1 |
| Wall mounting kit | Yes |
| Subwoofer location | Separate |
| Woofer diameter (subwoofer) | 5.9 " |
| Enhanced Audio Return Channel (eARC) | Yes |

### Loudspeakers

| Feature | Value |
|---|---|
| Audio output channels | 3.1.2 |
| Tweeter diameter (imperial) | 1 " |
| Number of tweeter drivers | 2 |
| Number of mid-range drivers | 2 |

### Subwoofer

| Feature | Value |
|---|---|
| Subwoofer depth | 328 mm |
| Subwoofer height | 280 mm |
| Subwoofer width | 200 mm |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired & Wireless |
| Bluetooth | Yes |
| USB 2.0 ports quantity | 1 |
| Wi-Fi | No |

### Technical details

| Feature | Value |
|---|---|
| Wall mountable | Yes |
| HDMI ports quantity | 1 |
| Number of products included | 1 pc(s) |
| Subwoofer included | Yes |

### Other features

| Feature | Value |
|---|---|
| Batteries included | Yes |
| Digital audio optical in | 1 |
| HDMI in | 1 |
| USB port | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 60 mm |
| Width | 1046 mm |
| Depth | 95 mm |

### Packaging content

| Feature | Value |
|---|---|
| Remote control included | Yes |
| Cables included | AC, HDMI, Optical |
| Quick start guide | Yes |

### Performance

| Feature | Value |
|---|---|
| Product colour | Black |
| Audio decoders | Dolby Atmos |

## FAQ

### How much does the Polk Audio Signa S4 Soundbar 3.1.2 Channels cost, and is it available for purchase?

The price is 297.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 17.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Polk Audio Signa S4 Soundbar 3.1.2 Channels be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All polk audio products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized polk audio service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: audio output channels, connectivity technology, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Polk Audio Signa S4 Soundbar 3.1.2 Channels?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12516931/68861782_large.webp