What the maker puts in writing
- “Upgrade your TV audio with 120W RMS power, 2.0.2 channel sound, and Dolby Atmos support”
- “Connect TVs, consoles, or media players through HDMI ARC or dual HDMI inputs, with 4K HDR pass-through”
- “Stream playlists from your phone, tablet, or laptop up to 8 meters (26 ft) away” via “Bluetooth 5.0”
- “Pick Movie, Music, News, or 3D, then adjust bass and treble from the remote”
- “Includes Sierra sound bar, remote, power cable, HDMI cable, RCA to 3.5mm (0.14 in) AUX cable, wall mount kit, and manual, with 37.8 x 4.25 x 3.19 inches dimensions and 7.83 lbs”
One hundred and twenty watts RMS — the only comparable number here
This is the most useful thing on the shelf, and it reads like the weakest.
An RMS rating is continuous: power the amplifier can sustain. A maximum or peak rating is a momentary ceiling, measured generously and often with no distortion limit stated.
As a rough industry pattern, peak figures run two to four times the continuous figure for the same hardware.
So against the shelf:
Hisense: 240 W max · Suntrok: 240 W peak · Philips: 60, 120, 140 W max · Assistrust: 80 and 90 W · this: 120 W RMS · Sony, Amazon, Bose: nothing
Ten peaks, one continuous figure, three silences. The 120 W here is very probably the most powerful bar on the shelf, and it is certainly the only figure you can reason about.
And the only third number
A channel count reads front . sub . height. 2.0.2 is two front channels, no subwoofer, and two up-firing height drivers.
That third number is the only thing separating genuine Dolby Atmos playback from processed simulation — and no other bar on this shelf has one. Everything else is 2.0 or 2.1, so the DTS Virtual:X and “3D audio” claims elsewhere here are psychoacoustic processing with nothing aimed at the ceiling.
Where the limit sits: up-firing drivers work by bouncing sound off the ceiling, so the effect depends on your ceiling being flat, hard and at a sensible height. A sloped or acoustic-tiled ceiling degrades it considerably.
Connect TVs, consoles, or media players through HDMI ARC or dual HDMI inputs, with 4K HDR pass-through.
Every other bar on this shelf is ARC only — meaning every source plugs into the television, and the television sends audio back down one cable. That works, and it makes the TV the switcher.
Inputs on the bar let a console or a player route through it, which matters for two reasons: the bar receives the full uncompressed audio stream rather than whatever the television chooses to send back, and you free up a television input.
The 4K HDR pass-through is the necessary companion — without it, routing video through the bar would cost you resolution or dynamic range.
The catalog loses the length; the weight proves it
Catalog: 81 × 108 × 81 mm — a cube the size of a mug.
Its own bullet: 37.8 × 4.25 × 3.19 inches and 7.83 lbs — that is 960 × 108 × 81 mm.
So two of the three catalog figures are right and the 960 mm (37.8 in) length has become 81, a repeat of the depth.
And the weight settles it: 7.83 lb is 3,552 g (125.3 oz), exactly the catalog weight.
Which makes this the only listing on this shelf to publish both its dimensions and its weight in its own text. Bose publishes dimensions — including its remote’s — and no weight for the bar. Sony, Amazon and the four Philips bars publish neither.
What it does not have
No subwoofer. And that is the real trade at this price: Hisense at $119.99 and the Philips B5306 at $117.94 both include a wireless one, for twenty dollars less than this.
So the choice is explicit. Height channels and Atmos and two HDMI inputs here, or bass there. For most rooms and most films, a subwoofer is the more audible purchase — a bar 81 mm (3.19 in) deep cannot move air below about 100 Hz, and that is where the weight of a film mix lives.
Bluetooth 5.0, the oldest on this shelf, against 5.4 on two Philips bars. Less important than it sounds, since television audio goes over HDMI.
No driver count and no driver size, where Suntrok publishes diameters.
Availability
At the check, the American Amazon store stood at roughly $140.
These numbers are what Keepa carried on the day this page was last built. Stock and prices move without notice.
Prices quoted in this text were read on 4 October 2026. The live price is at the top of the page.