Short answer: the Polk MagniFi Max AX. It ranks #3 of 16 soundbars with a subwoofer by sound quality, rated 3.6/5, at $799; the LG S90TY ranks #8, rated 3.5/5, and costs $999.99, so there is not much of a tradeoff to weigh.
What the Polk MagniFi Max AX does well: A full 5.1.2 system with a 10 inch wireless sub, real up-firing height drivers and DTS:X support, so movies get more weight and overhead effects than smaller bars. The tradeoff: There is no voice assistant or room correction, so setup is manual.
Why pick the LG S90TY: A bar with a real wireless sub that suits both TV and music, with clear dialogue and a wide front stage. The catch: Without rear speakers the height effect only works for sounds in front, and RTINGS found Samsung Q800 bars such as the Samsung HW-Q800F wrap the room with Atmos far better.
Buy the Polk MagniFi Max AX. It is rated higher for sound quality than the LG S90TY and costs less, so only choose the other one for a particular feature it does better.
Still deciding? The full TV Soundbars rankings cover every ranked option.
A full 5.1.2 system with a 10 inch wireless sub, real up-firing height drivers and DTS:X support, so movies get more weight and overhead effects than smaller bars.
A bar with a real wireless sub that suits both TV and music, with clear dialogue and a wide front stage.
Prices on this page were last checked November 2, 2026 at 11:36 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Polk MagniFi Max AX | LG S90TY | |
|---|---|---|
| Price | $799.00 | $999.99 |
| Ranked | #3 of 16 in Soundbars With a Subwoofer | #8 of 16 in Soundbars With a Subwoofer |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.1 |
| Channels | 5.1.2 | 5.1.3 |
| DTS:X | Yes | Yes |
| Dimensions | 2.8”H x 45”W x 4.6”D (71 x 1143 x 117 mm) | 2.5”H x 49.2”W x 5.3”D (63 x 1250 x 135 mm) |
| Dolby Atmos | Yes (up-firing drivers) | Yes (up-firing drivers) |
| Drivers | Bar: 11 drivers (L/R four 3” racetrack mid-woofers and two 0.75” tweeters, center two 2.5” mid-woofers and one 0.75” tweeter, two 2.6” up-firing); Sub: 10” woofer | Bar: 11 speaker units incl. three up-firing; Sub: 8” woofer |
| HDMI Input | 3 | 1 |
| HDMI eARC | Yes | Yes |
| Included Subwoofer | Wireless, 10” driver | Wireless, 8” driver |
| Optical Input | Yes | Yes |
| Rear Speakers | Optional (MagniFi Max AX SR rears) | Optional (LG SPT8-S) |
| Room Correction | No | Yes (AI Room Calibration) |
| Subwoofer Dimensions | 399H x 406W x 302D mm | 407H x 200W x 404D mm |
| Subwoofer Weight | 11.9 kg | 10 kg |
| Voice Assistants | No | Alexa, Google Assistant |
| Weight | 12.8 lbs (5.8 kg) | 12.6 lbs (5.7 kg) |
| Wi-Fi | Yes (AirPlay 2, Chromecast, Spotify Connect) | Yes (AirPlay 2, Chromecast, Spotify Connect) |
| Amplifier Power | - | 570W total (350W bar, 220W sub) |
| App | - | Yes (LG ThinQ) |
| Aux Input | - | No |
Related Soundbar Comparisons
More worthwhile head-to-heads for Polk MagniFi Max AX: