It makes sense comparing Nakamichi Shockwafe Ultra 9.2 vs LG SL9YG because they both are able to give some premium features. Based on our rating, Shockwafe Ultra 9.2 has a total rating of 8.2 out of 10 versus 8 for SL9YG. The competitors' control buttons are different: power, source, demo, volume down, volume up and power, volume down, volume up, play/pause, microphone, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Nakamichi Shockwafe Ultra 9.2 has 9.2.4 versus 4.1.2 for the LG SL9YG. The output power is different and equal to 1000 (overall) W for the Shockwafe Ultra 9.2 versus 500 (overall) W for the SL9YG. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The Nakamichi Shockwafe Ultra 9.2 got our rating of 10 out of 10, and the LG SL9YG 8 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify is available on each of the soundbars.
Only the LG SL9YG can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Nakamichi Shockwafe Ultra 9.2 has 3/1 HDMI inputs/outputs versus 1/1 of the LG SL9YG. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, the Shockwafe Ultra 9.2 received a rating of 8/10 versus 7/10, respectively. App control is available for the SL9YG. A built-in microphone is present only on the SL9YG. Multi-room is only available for the LG SL9YG.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review. For multichannel surround Nakamichi Shockwafe Ultra 9.2 got a rating of 10, and LG SL9YG 8 out of 10.