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Polk Signa S4 review

Soundbar + sub. Priced at $715.

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CHOICE Expert Rating

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This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.

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HDMI ARC support View more details.

Audio Return Channel (ARC) reduces cable clutter by sending video and audio to and from the TV using a single input/output.

Yes
Video switching View more details.

Automatically switches the content shown on the TV based on which HDMI connection on the soundbar is receiving a signal.

No
Bluetooth View more details.

Bluetooth is handy for a direct connection with a smartphone to play music.

Yes
NFC View more details.

Near field communication (NFC) allows your smartphone to connect to the soundbar speaker by simply tapping the smartphone on the NFC area to create an instant pairing. Apple iPhones do not support NFC connectivity between devices, but most of the latest Androids do.

No
Wi-Fi View more details.

Wi-Fi connections allow your speaker to be incorporated into a wireless home network to play music stored on your local drive, in the cloud or on your smart device, as long as it's also connected to your home network.

No
Dolby Atmos View more details.

Dolby Atmos is a surround sound technology that creates a spherical audio space to add a sense of height to the mix. It's designed to be more immersive than 5.1, 7.1 etc. Atmos enabled soundbars can process the signal and simulate the effect by bouncing audio off the walls and roof.

Yes
DTS: X View more details.

DTS:X is a surround sound technology that creates a spherical audio space to add a sense of height to the mix. It's designed to be more immersive than 5.1, 7.1 etc. DTS:X enabled soundbars can process the signal and simulate the effect by bouncing audio off the walls and roof.

No
Alexa support View more details.

Built-in support for Alexa so you can issue voice commands via the soundbar. This may require a smartphone and dedicated app. This is a new addition to our test which is why we haven't looked for these features in some previously tested models.

No
Google Assistant support View more details.

Built-in support for Google Assistant so you can issue voice commands via the soundbar. This may require a smartphone and dedicated app. This is a new addition to our test which is why we haven't looked for these features in some previously tested models.

No
Automatic room calibration View more details.

A microphone and clever smarts is used to identify the angling needed to recreate the surround sound experience. The soundbar companies call it automatic room calibration.

No
Wall mountable
Yes
Wireless subwoofer View more details.

A wireless sub offers more positioning choices, particularly if you can't run the speaker cable under the floor or through the ceiling. But you'll still need access to a power point.

Yes
Wireless surround speakers View more details.

A few soundbars come with independent rear speakers. Some of them communicate with the soundbar wirelessly, while others resort to a traditional wired connection.

N/A
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