
Vizio M213ad-K8
Score: 86/100
Marshall Acton III
Score: 78/100Rankings

The VIZIO M-Series M213ad-K8 delivers powerful 2.1 sound with dual subwoofers, strong bass, and a suite of immersive audio formats in a compact package. It shines with easy HDMI ARC setup and dialogue enhancement, but lacks HDMI eARC and true Dolby Atmos, making it less future-proof for high-end home-theater setups.

The Acton III is a compact, AC-powered Bluetooth speaker that delivers 60 W RMS of rich stereo sound with premium analog controls and modern Bluetooth 5.2 features. Its iconic design and eco-friendly build make it a stylish centerpiece for small-to-medium rooms, though it lacks battery power and advanced smart-home connectivity.
| Attribute | ![]() | ![]() |
|---|---|---|
80 wattsbest | 60 watts | |
98 dBbest | — | |
50 Hzbest | 45 Hz | |
20,000 Hzbest | 20,000 Hzbest | |
2.1best | 2 | |
| ↓ lower better | 2.268 kgbest | 2.85 kg |
1 countbest | — | |
1 yearsbest | 1 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Physical Specs(1) | ||
Weight (kg) | 2.268 kg | 2.85 kg |
Connectivity(1) | ||
Bluetooth Version | 5.0 | 5.2 |
Audio Performance(3) | ||
Power Output (watts) | 80 watts | 60 watts |
Frequency Response (Low) (Hz) | 50 Hz | 45 Hz |
Channels | 2.1 | 2 |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the striking performance and clear, dynamic sound, highlighting the easy HDMI ARC setup and DTS Virtual:X immersion, while noting the absence of HDMI eARC and Dolby Atmos limits its appeal to audiophiles.
Everyday users love the dramatic improvement in movie and gaming audio, the straightforward installation, and the deep bass from the dual subwoofers, though some complain about Bluetooth glitches and limited EQ options.

Professional reviewers praise the Acton III for delivering bold, room-filling sound in a small footprint, highlighting its powerful 60 W RMS output, wider soundstage from outward-angled tweeters, and modern Bluetooth 5.2 features like LE Audio and placement correction. They note the premium build and iconic design as strong points, while pointing out the lack of RCA inputs and smart-assistant support as the main drawbacks.
Everyday users consistently commend the speaker's impressive sound quality, stylish look, and tactile brass controls, often mentioning the convenience of Bluetooth multipoint and the helpful app. Common complaints revolve around the absence of a battery, occasional Bluetooth drop-outs, and the desire for more wired input options.
“Unbelievable movie experience”

“Easy installation”

“Fills the room”


