
Polk Audio Signa S3
Score: 75/100
Hisense AX3120Q
Score: 80/100Rankings

The Hisense AX3120Q is a 3.1.2-channel soundbar with Dolby Atmos, a powerful 500 W peak output and a wireless subwoofer. It lacks Wi-Fi integration and has a relatively heavy form factor, which may limit placement options. Ideal for budget-conscious users seeking immersive audio in small-to-medium rooms.

The Polk Signa S3 offers a low-profile 2.1-channel soundbar with built-in Chromecast and Google Assistant, providing easy streaming and dialogue enhancement. Its limited channel configuration and lack of detailed power specifications restrict surround-sound performance. Best suited for users who want a simple, affordable upgrade for modest TV setups.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 500 Wbest | |
— | 16.51 cmbest | |
| ↓ lower better | 1.8 kgbest | 8.3 kg |
1 yearsbest | 1 yearsbest | |
— | 5best | |
90 cm | 101.6 cmbest | |
5.5 cm | 10.8 cmbest | |
8.2 cmbest | 5.7 cm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(2) | ||
Audio Channels | 2.1 | 3.1.2 |
Supported Audio Formats | Dolby Digital, DTS Virtual Surround | Dolby Atmos, DTS:X |
Connectivity(1) | ||
Wi‑Fi Support | true | false |
Features(1) | ||
Voice Control | true | false |
Design(4) | ||
Soundbar Weight (kg) | 1.8 kg | 8.3 kg |
Soundbar Width (cm) | 90.0 cm | 101.6 cm |
Soundbar Height (cm) | 5.5 cm | 10.8 cm |
Soundbar Depth (cm) | 8.2 cm | 5.7 cm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the Signa S3 for its low-profile aesthetics, straightforward setup, and useful features like VoiceAdjust and built-in Chromecast, while noting its limitation to 2.1 channels and the lack of detailed power specs.
Everyday users appreciate the simple plug-and-play installation, clear dialogue from VoiceAdjust, and the solid bass from the wireless subwoofer, with no major complaints beyond the system's basic channel configuration.

Professional reviewers acknowledge the AX3120Q's solid power output, Dolby Atmos/DTS:X support, and AI-driven sound optimization, positioning it as a compelling entry-level option. However, they also point out the lack of Wi-Fi streaming and limited input selection.
Consumer feedback is limited, but the available Best Buy description highlights ease of setup and a cinematic boost to TV audio, with users appreciating the wireless subwoofer's flexibility and the system's ability to fill a room with immersive sound.
“immersive audio that surrounds you”

“rich sound and deep bass”


