I had a chance to test and compare two models: Nakamichi Shockwafe Ultra 9.2 eARC vs Sonos Arc and this review should help people who are looking for a good soundbar. The Nakamichi Shockwafe Ultra 9.2 eARC was rated 6.6, while the Sonos Arc has a rating 7.
Each of the models under consideration has active amplification type. 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 10 out of 10 received the Nakamichi Shockwafe Ultra 9.2 eARC for audio features and specs, but the Sonos Arc received 5 out of 10. The Arc can play audio from Spotify.
Wireless Internet connection is realized only in the Arc. Soundbars from this comparison have Bluetooth support. There are 3/1 HDMI inputs/outputs in the Nakamichi Shockwafe Ultra 9.2 eARC versus 1/0 HDMIs in the Sonos Arc. As in the Shockwafe Ultra 9.2 eARC, so in the Arc there is the HDMI Audio Return Channel (ARC). We rated the connectivity of the Shockwafe Ultra 9.2 eARC at 9 out of 10, while the Arc was rated 7/10. The manufacturer of the Arc provides a device control application. The Sonos Arc 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 Shockwafe Ultra 9.2 eARC can work with surround sound due to DTS:X support. The Shockwafe Ultra 9.2 eARC was rated 10/10, while the Arc received a mark of 4/10 for multichannel surround.