Acoustic Audio AA5170
Score: 73/100
Polk Monitor XT70 Midnight Black
Score: 79/100Rankings
The Polk Monitor XT70 is a floor-standing tower speaker delivering detailed highs and deep bass with dual passive radiators, making it ideal for hi-res and Dolby Atmos setups. Its large size and lack of a built-in subwoofer may be drawbacks in smaller rooms. Best suited for medium-large home-theater spaces.
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 | | |
|---|---|---|
5.1best | — | |
700 Wbest | 200 W | |
— | 89 dBbest | |
— | 6.5 inbest | |
— | 1 inbest | |
| ↓ lower better | 20 lbbest | 35 lb |
— | 5 yearsbest | |
8best | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Performance(1) | ||
Total Power Output (W) | 700 W | 200 W |
Build & Design(2) | ||
System Weight (lb) | 20 lb | 35 lb |
System Dimensions (H×W×D) (cm) | 69.09×33.27×31.24 cm cm | 101.6×25.4×22.86 cm 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.”
Professional reviewers consistently commend the XT70 for its linear on-axis response, low harmonic distortion, and the combination of a Hi-Res dome tweeter with dual passive radiators that deliver detailed highs and deep, clean bass. They also note its versatility across 4 Ω and 8 Ω amplifiers and its suitability for high-resolution audio and Dolby Atmos/DTS:X setups, while cautioning about sensitivity variance and the need for a capable amplifier.
Everyday users praise the XT70 for creating immersive, lifelike sound in movies, games and music, especially noting the strong bass and crystal-clear highs that work well with streaming services. The main themes of satisfaction revolve around easy integration with existing AVRs and the ability to fill medium-large rooms without a separate subwoofer, while the only recurring concern is the speaker's large footprint in smaller spaces.
