It makes sense comparing Samsung Q600B vs Samsung HW-A450 because they both are able to give some premium features. Based on our rating, Q600B has a total rating of 6 out of 10 versus 4 for HW-A450.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Samsung Q600B has 3.1.2 versus 2.1 for the Samsung HW-A450. The output power is different and equal to 360 (overall) W for the Q600B versus 300 (overall) W for the HW-A450. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The Samsung Q600B got our rating of 8 out of 10, and the Samsung HW-A450 5 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. Only the Q600B supports HDMI Audio Return Channel (ARC). For connectivity, the Q600B received a rating of 8/10 versus 5/10, respectively.
Compared soundbars have no app control. None of the models under consideration have a built-in microphone. Soundbars do not have Multi-room support.
Only the Q600B has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the Q600B. For multichannel surround Samsung Q600B got a rating of 10, and Samsung HW-A450 6 out of 10.