l would like to share my experience after comparing and testing two soundbars – VIZIO SB2821-D6 vs VIZIO SB4451-C0. The VIZIO SB2821-D6 was rated 4.4, while the VIZIO SB4451-C0 has a rating 6.4. Soundbars have the same set of buttons - power, input, Bluetooth, volume down, volume up.
Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that SB2821-D6 has 2.1 and SB4451-C0 has 5.1. 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 6 out of 10 received the VIZIO SB2821-D6 for audio features and specs, but the VIZIO SB4451-C0 received 8 out of 10. Google Play Music service is only in the SB4451-C0. The SB4451-C0 can play audio from Spotify.
Wireless Internet connection is realized only in the SB4451-C0. Soundbars from this comparison have Bluetooth support. The HDMI Audio Return Channel (ARC) is implemented only in the SB4451-C0. Connecting devices via USB is possible in both models. We rated the connectivity of the SB2821-D6 at 5 out of 10, while the SB4451-C0 was rated 8/10.
The manufacturer of the SB4451-C0 provides a device control application. Soundbars in this review are not equipped with a microphone. The models under consideration cannot become part of a multiroom system.
Dolby Atmos audio decoder support is not implemented in either the SB2821-D6 or SB4451-C0. Devices from this comparison cannot process surround sound due to lack of DTS:X. DTS Virtual:X technology not supported by any of the soundbars in this review. The same score of 2/10 was put to the soundbars for multichannel surround support.
The VIZIO SB4451-C0 is better soundbar in this comparison. Check VIZIO SB4451-C0 price