Polk Audio Signa S4
Score: 67/100
Sony HT-S400
Score: 49/100Rankings
The Signa S4 is a 3.1.2-channel Dolby Atmos soundbar with a wireless subwoofer, offering strong dialogue clarity and easy HDMI eARC setup for small-to-medium rooms.
The Sony HT-S400 is a compact 2.1-channel soundbar with a powerful 330 W output and virtual surround technology. It offers HDMI ARC, Bluetooth 5.0 and a wireless subwoofer, making it a strong upgrade over built-in TV speakers.
| Attribute | | |
|---|---|---|
— | 330 Wbest | |
— | 2.1best | |
| ↓ lower better | 8.6 kg | 2.4 kgbest |
36 monthsbest | 12 months | |
| ↓ lower better | — | 0.5 Wbest |
10 mbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Audio Performance(1) | ||
Supported Audio Formats | Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS Virtual:X | Dolby Digital, Dolby Dual Mono, LPCM 2ch, SBC |
Build & Design(1) | ||
Soundbar Weight (kg) | 8.6 kg | 2.4 kg |
Power & Battery(2) | ||
Power Source | AC | Corded electric |
Warranty Period (months) | 36 months | 12 months |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend its value-driven Atmos performance and dialogue clarity, while noting the lack of smart-home features and expandability.
Users praise the clear dialogue, powerful subwoofer and quick setup, but mention occasional Bluetooth drops and the non-backlit remote as drawbacks.
Professional reviewers commend the HT-S400 for delivering cinema-like sound and strong bass at a budget-friendly price, highlighting its virtual surround technology and clear dialogue reproduction. However, they point out the lack of auxiliary inputs and the absence of premium surround formats as notable drawbacks for audiophiles.
Everyday users overwhelmingly praise the soundbar for its dialogue clarity, punchy bass, and straightforward HDMI ARC setup. Common complaints revolve around missing USB/AUX inputs, limited surround depth, and the subwoofer's size in tight spaces.
“Dialogue is crystal clear, even in loud action scenes.”
“The subwoofer hits harder than expected for its size.”
“Set up in under 10 minutes - just plugged in HDMI and it worked.”
