Do u update the firmware ?how to know whether the soundbar using latest one?

Hi, im using samsung hwk 551 paired with rear wireless speaker. I read that the soundbar has licence from dolby 5.1 and dts 2.0 only.my question is, can my soundbar play surround audio from dts 5.1 sourced.

Anyone can explain what is dolby digital, pro logic, dts hd, dts master and all these terms. Is my soundbar able to all those types. Tq

hi, i want opinion regarding upgrade. currently using samsung soundbar hwk551 with wireless rear speakers.

is yamaha yas 207 good upgrade?.i only stream iflix, utube, sometime downloaded movie which has dolby 5.1.

reason for upgrade, i dun think the surround effect is sufficient n dialogue is fade compare to music/sound effects. tq