Acoustic Audio AA5170
Score: 73/100
Polk Audio Signa S4
Score: 79/100Rankings
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.
The Acoustic Audio AA5170 is a 700 W 5.1-channel Bluetooth home-theater system with a powered subwoofer and wired satellite speakers. Its wired rear speakers and lack of advanced features like Dolby Atmos limit flexibility compared with newer wireless solutions. Best for budget-focused users who need a complete, plug-and-play 5.1 setup for small-to-medium rooms.
| Attribute | | |
|---|---|---|
5.1 | 6best | |
700 Wbest | 410 W | |
— | 1 inbest | |
— | 5.9 inbest | |
| ↓ lower better | 20 lb | 19 lbbest |
— | 3 yearsbest | |
8best | 7 |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Performance(1) | ||
Total Power Output (W) | 700 W | 410 W |
Audio(1) | ||
Audio Channels | 5.1 | 6 |
General(1) | ||
Included Accessories | 8 | 7 |
Build & Design(2) | ||
System Weight (lb) | 20 lb | 19 lb |
System Dimensions (H×W×D) (cm) | 69.09×33.27×31.24 cm cm | 2.4 x 41.2 x 3.7 in cm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers are not present in the available sources; manufacturer and retailer descriptions emphasize value, plug‑and‑play convenience, and Bluetooth streaming, but no independent editorial assessments were found.
Everyday users appreciate the solid feel of the heavy subwoofer, the completeness of the included cabling, and the ease of initial setup, while noting the wired nature of the satellites and the need to manually switch from 2.1 to 5.1 as minor inconveniences.
“Heavy subwoofer, simple rear-panel connections, and complete cabling for quick integration.”
“huge soundstage”
“powerful bass that rumbles behind couch”
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.
