I have a Samsung HW - H450 about six years old. It’s a sound bar with a subwoofer attached I would like to get a new sound bar and was wondering how much improvement I will receive with the new sound bar I’m looking at the Polk audio signal s4. any comments would be appreciated. Thanks
That is not a question that can be answered. Sound bars are not about good sound. They are about voice clarity and NOT natural speech from what I have observed.
Modern TV's have miniature speakers facing the wall, to please the interior designers, by keeping the Bessel as small as possible.
I don't think sound bar designers are particularly concerned about speech quality, just clarity. They employ all manner of phasing and cross talk cancelling techniques to fake a sense of spaciousness. I think sound bars can only really be judged on speech clarity and NOT audio quality.
If it is improved audio quality you are after, then you need to progress away from sound bars. Lastly I'm not aware of any objective measurements of audio quality on sound bars, as I suspect it would be a waste of time.