The VIZIO SB2821-D6 vs Definitive Technology Mythos SSA-50 comparison shows that these models have some important differences and common features. The VIZIO SB2821-D6 was rated 4.8, while the Definitive Technology Mythos SSA-50 has a rating 6.
Soundbars have different amplification type - active versus passive respectively to devices. A noticeable difference is the number of channels that SB2821-D6 has 2.1 and Mythos SSA-50 has 5.0. A built-in subwoofer is available only in the Definitive Technology Mythos SSA-50. Audio features and specs of considered models we rated 6 out of 10 in our ranking.
Soundbars do not have AirPlay support. The units in this comparison do not support Spotify.
Both models do not have a wireless Wi-Fi interface. Bluetooth support integrated in the SB2821-D6. Neither the SB2821-D6 nor Mythos SSA-50 has the HDMI Audio Return Channel (ARC). We rated the connectivity of the SB2821-D6 at 4 out of 10, while the Mythos SSA-50 was rated 6/10.
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.
Dolby Atmos audio decoder support is not implemented in either the SB2821-D6 or Mythos SSA-50. Devices from this comparison cannot process surround sound due to lack of DTS:X.