This is a historic low price I believe for the S360DB. It is the upgraded brother of the popular S350DB, around a year ago the S360DB was ~$600, decreased to $499 since a couple of months ago, this is the first time I have seen them on special at this price.
These will outperform any soundbars + woofer in this price range if you have the space for them. So would the S350DB, but the S360DB have larger planar diaphragm tweeters that sound more detailed according to user reviews of the S360DB, sub-woofer performance between the two should be similar, but the S360DB comes with a WIRELESS subwoofer too, so installation is much easier for where you want it to be placed.
I own the S350DB as desktop entertainment speakers and they have been perfect for well over a year. Great imaging, nice clear mids, and crispy highs, the sub-woofer is clean and punchy too, and not too overwhelming. All in all, the S360DB should be an upgrade in every way.
I think this might be a double-up on an earlier post.