I had a chance to test and compare two models: Nakamichi Shockwafe Elite 7.2 vs VIZIO M512a-H6 and this review should help people who are looking for a good soundbar. The Nakamichi Shockwafe Elite 7.2 was rated 8, while the VIZIO M512a-H6 has a rating 5.6. 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 Shockwafe Elite 7.2 has 7.2.4 and M512a-H6 has 5.1.2. 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 9 out of 10 received the Nakamichi Shockwafe Elite 7.2 for audio features and specs, but the VIZIO M512a-H6 received 8 out of 10.
Soundbars do not have AirPlay support. The Shockwafe Elite 7.2 can play audio from Spotify.
Both models do not have a wireless Wi-Fi interface. Soundbars from this comparison have Bluetooth support. There are 3/1 HDMI inputs/outputs in the Nakamichi Shockwafe Elite 7.2 versus 1/1 HDMIs in the VIZIO M512a-H6. As in the Shockwafe Elite 7.2, so in the M512a-H6 there is the HDMI Audio Return Channel (ARC). Connecting devices via USB is possible in both models. The connectivity of each of the models was estimated at 8/10.
None of these soundbars can be controlled using the app. Soundbars in this review are not equipped with a microphone. The models under consideration cannot become part of a multiroom system.
Manufacturers equipped both units with Dolby Atmos audio decoder. Units from this comparison can process surround sound due to DTS:X support. The Shockwafe Elite 7.2 was rated 10/10, while the M512a-H6 received a mark of 8/10 for multichannel surround.