If you have already decided that you want to buy a new soundbar, but still don’t know what exactly you want, the VIZIO M51ax-J6 vs Polk Audio Signa S4 comparison is here to offer you two decent solutions. The VIZIO M51ax-J6 was rated 5.4, while the Polk Audio Signa S4 has a rating 7.8. Soundbars have the same set of buttons - power, source, demo, volume down, volume up.
Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that M51ax-J6 has 5.1 and Signa S4 has 3.1.2. The built-in subwoofer is not implemented in any of these models. An external subwoofer can be connected to any of the units in this comparison. Rate 7 out of 10 received the VIZIO M51ax-J6 for audio features and specs, but the Polk Audio Signa S4 received 5 out of 10.
The Signa S4 can play audio from Spotify.
Wireless Internet connection is realized only in the Signa S4. Soundbars from this comparison have Bluetooth support. There are 1/1 HDMI inputs/outputs in the VIZIO M51ax-J6 versus 0/1 HDMIs in the Polk Audio Signa S4. As in the M51ax-J6, so in the Signa S4 there is the HDMI Audio Return Channel (ARC). Connecting devices via USB is possible in both models. We rated the connectivity of the M51ax-J6 at 8 out of 10, while the Signa S4 was rated 6/10.
The manufacturer of the Signa S4 provides a device control application. The Polk Audio Signa S4 equipped with a microphone. The models under consideration cannot become part of a multiroom system.
Manufacturers equipped both units with Dolby Atmos audio decoder. The M51ax-J6 can work with surround sound due to DTS:X support. The M51ax-J6 was rated 8/10, while the Signa S4 received a mark of 9/10 for multichannel surround.