Short answer: the JBL Bar 500MK2. It ranks #6 of 16 soundbars with a subwoofer by sound quality, rated 3.5/5, at $499.95. The Polk Signa S4 ranks #10, rated 3.4/5, at $449, $50.95 cheaper, not enough of a saving to outweigh the sound-quality gap.
The case for the JBL Bar 500MK2: A slim bar with a 10 inch wireless sub that reaches deep, so movies get convincing rumble. It streams over Wi-Fi as well as Bluetooth, which the Polk Signa S4 cannot. The tradeoff: There are no up-firing or rear speakers, so Atmos height and surround effects are weak.
What the Polk Signa S4 does well: A full Atmos package with up-firing drivers and a wireless sub, so movies gain height and real bass weight out of the box. The tradeoff: The sound stays mostly in front of you, so surround effects are limited, and RTINGS found it only fair for music.
Buy the JBL Bar 500MK2. It is rated higher for sound quality, and the $50.95 you would save on the Polk Signa S4 does not close the gap.
Still deciding? The full TV Soundbars rankings cover every ranked option.
A slim bar with a 10 inch wireless sub that reaches deep, so movies get convincing rumble.
A full Atmos package with up-firing drivers and a wireless sub, so movies gain height and real bass weight out of the box.
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.
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Specifications Side By Side
| JBL Bar 500MK2 | Polk Signa S4 | |
|---|---|---|
| Price | $499.95 | $449.00 |
| Ranked | #6 of 16 in Soundbars With a Subwoofer | #10 of 16 in Soundbars With a Subwoofer |
| Amplifier Power | 750W total (bar 450W, sub 300W) | - |
| App | Yes (JBL One) | No |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | - |
| Channels | 5.1 | 3.1.2 |
| DTS:X | Yes | No |
| Dimensions | 2”H x 37”W x 4.1”D (51 x 940 x 104 mm) | 2.4”H x 41.2”W x 3.7”D (60 x 1046 x 95 mm) |
| Dolby Atmos | Virtual (decodes Atmos, no up-firing drivers) | Yes (up-firing drivers) |
| Drivers | Bar: 5 racetrack drivers, 4x 0.75” tweeters; Sub: 10” woofer | Bar: 7 drivers (2 x 1” tweeters, 2 x 4.7x1.6” mids, 1 x 1” center, 2 x 2.6” up-firing); Sub: 5.9” woofer |
| HDMI Input | 1 | No |
| HDMI eARC | Yes | Yes |
| Included Subwoofer | Wireless, 10” driver | Wireless, 5.9” driver |
| Optical Input | Yes | Yes |
| Rear Speakers | No | No |
| Room Correction | Yes | No |
| Subwoofer Dimensions | 400H x 325W x 325D mm | 280H x 200W x 328D mm |
| Subwoofer Weight | 8.1 kg | 4.1 kg |
| Voice Assistants | No | No |
| Weight | 6.4 lbs (2.9 kg) | 6.4 lbs (2.9 kg) |
| Wi-Fi | Yes (AirPlay, Chromecast, Spotify Connect, Tidal Connect) | No |
| Aux Input | - | Yes |
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