
Acoustic Audio AA5170
Score: 76/100
Polk Audio T50
Score: 76/100Rankings

The Acoustic Audio AA5170 is a 5.1-channel home-theater system delivering 700 W of power with Bluetooth streaming and a suite of wired inputs. Its wired satellite speakers and manual mode switching limit flexibility, making it best for budget-focused users seeking a complete plug-and-play setup.

The Polk Audio T50 is a budget-friendly floor-standing tower speaker offering deep bass and clear mids/highs with Dynamic Balance technology. Its low-impedance requirement and basic finish may limit appeal for audiophiles seeking premium build quality. Ideal for small-to-medium rooms where strong bass without a subwoofer is desired.
| Attribute | ![]() | ![]() |
|---|---|---|
20 kHz | 40 kHzbest | |
— | 89 dBbest | |
700 Wbest | 150 W | |
— | 8 Ωbest | |
| ↓ lower better | 9.07 kgbest | 9.23 kg |
5.1best | 1 | |
— | 5 yearsbest | |
— | 2.54 cmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(3) | ||
Frequency Response (kHz) | 20 kHz | 40 kHz |
Channels | 5.1 | 1 |
RMS Power (W) | 700 W | 150 W |
Build & Design(2) | ||
Weight (kg) | 9.07 kg | 9.23 kg |
Dimensions (H×W×D) (cm³) | 71810 cm³ | 40296 cm³ |


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.

Professional reviewers consistently commend the T50's value proposition, noting its Dynamic Balance technology, silk-dome tweeter, and front-firing passive radiators that together deliver flat on-axis response and deep bass at a low price point. They also appreciate the high efficiency that lets modest amplifiers drive the speakers loudly, though they caution about the 4 ohm minimum impedance and the modest measured sensitivity.
Everyday users praise the T50 for its deep, room-filling bass, ease of driving with basic AVRs, and the immersive soundstage it creates in home-theater setups. Common criticisms focus on the bulky packaging, the basic vinyl finish, and confusion caused by inconsistent spec listings across retailers.
“Heavy subwoofer, simple rear-panel connections, and complete cabling for quick integration.”

“largest speaker for rears”

“deep, room-filling bass from radiators even at low volumes”

