Polk Audio Signa S4
Score: 79/100
Bose Smart Dolby Atmos
Score: 83/100Rankings
The Bose Smart Soundbar delivers Dolby Atmos and AI Dialogue Mode in a slim form factor, with built-in Alexa and extensive wireless connectivity. It lacks ADAPTiQ calibration and may be under-powered for larger rooms, and the wall-mount bracket is sold separately. Perfect for small-to-medium living rooms seeking an all-in-one smart sound solution.
The Polk Signa S4 is a slim Dolby Atmos sound bar with a powerful 410 W output, VoiceAdjust dialogue enhancement, and a wireless subwoofer, delivering immersive audio for small to medium rooms. Its drawbacks include the lack of a standard HDMI input and occasional Bluetooth hiccups, which may affect connectivity flexibility. Best suited for budget-conscious viewers with 40-55" TVs who prioritize immersive sound and dialogue clarity.
| Attribute | | |
|---|---|---|
6best | 5 | |
410 Wbest | — | |
1 inbest | — | |
5.9 inbest | — | |
| ↓ lower better | 19 lb | 6.909 lbbest |
3 yearsbest | 1 years | |
7best | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Audio(1) | ||
Audio Channels | 6 | 5 |
Connectivity(1) | ||
Bluetooth Version | Yes | 5.0 |
General(1) | ||
Warranty (years) | 3 years | 1 years |
Build & Design(2) | ||
System Weight (lb) | 19 lb | 6.909 lb |
System Dimensions (H×W×D) (cm) | 2.4 x 41.2 x 3.7 in cm | 5.6×69.4×10.4 cm cm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the Signa S4 for its impressive bass output, clear dialogue thanks to VoiceAdjust, and effective Atmos height effects, noting it offers strong value in the entry-level Atmos segment. However, they criticize the missing standard HDMI input and the need for careful bass balancing, suggesting it's best suited for users who prioritize sound impact over extensive connectivity.
Everyday users love the easy wireless sub setup, the room-shaking bass, and the clear speech reproduction, especially for movies and sports. Common complaints revolve around the sub's heft, occasional Bluetooth hiccups, and the inability to connect multiple HDMI sources, with some noting the bass can dominate mids if not tuned.
“huge soundstage”
“powerful bass that rumbles behind couch”
Professional reviewers commend the Smart Soundbar for delivering a remarkable sound-to-size ratio, with its five-speaker array and TrueSpace upmixing providing immersive audio despite the compact chassis. The inclusion of Dolby Atmos and Alexa adds convenience, but critics note the lack of ADAPTiQ calibration and a lower speaker count than Bose's higher-end Ultra model, making it a solid mid-range choice rather than a flagship.
Everyday users praise the compact design, Dolby Atmos effect, and voice-control convenience, while noting the limited speaker count and desire for a wall-mount bracket. Overall sentiment is positive for the feature set relative to size and price.
