The VIZIO SB3821-C6 vs Definitive Technology Mythos SSA-50 comparison shows that these models have some important differences and common features. The VIZIO SB3821-C6 was rated 4.5, 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 SB3821-C6 has 2.1 and Mythos SSA-50 has 5.0. A built-in subwoofer is available only in the Definitive Technology Mythos SSA-50. Rate 5 out of 10 received the VIZIO SB3821-C6 for audio features and specs, but the Definitive Technology Mythos SSA-50 received 6 out of 10.
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 SB3821-C6. Neither the SB3821-C6 nor Mythos SSA-50 has the HDMI Audio Return Channel (ARC). The connectivity of each of the models was estimated at 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 SB3821-C6 or Mythos SSA-50. Devices from this comparison cannot process surround sound due to lack of DTS:X.