EDIT: THIS DEAL IS BACK, Re-Enabling this thread.
For my computer setup, I upgraded to the Edifier S360DB last year when it hit this exact historical low price, I owned the S350DB prior to that for over a year too. I looked for reviews but none of them really gave me a good idea of what differences to expect between the S350DB and the S360DB. I would argue, the jump is as big as going from the Logitech Z623 to the S350DB, maybe even bigger. And the S350DB is considered one of the best choices already at around the $350 AUD price bracket.
The S360DB sounds full. First of all, there is a big difference in bass performance. Although the sub-woofer performance itself is close to the S350DB (albeit it’s wireless and much easier to setup), the S360DB subwoofer amps are upgraded. The two speakers on either side go deeper, in terms of bass, than the S350DB speakers, giving the sound three layers of bass from all directions on the S360DB. You might be thinking, if the speakers on either side now have a lot more bass, it might muddy the mids and the highs? That assumption is wrong. The planar tweeters on the S360DB are developed by Fostex, they improve not only the imaging significantly in my opinion when compared with its predecessor, but combined with the German produced drivers by KLIPPEL, they produce much cleaner mids and highs too in comparison to the S350DB. These combinations, give a completely different layer to vocals. You can hear the rumble in those who have deeper voices, since both speakers go lower in the frequency range, you get sub-bass and bass from the woofer, and bass from the two speakers, while maintaining and improving clarity of the overall voices.
As I stated earlier, the S360DB just sounds full and rich with detail. I don’t know how else to put it, but I haven't heard any soundbar + woofer combinations or Bookshelf Speakers at around this price of $400 to $450 that would sound better than the Edifier S360DB IMO for Desktop or Entertainment purposes. Purely for music, there are more accurate Bookshelf Speakers in this price range, but overall with a subwoofer, the S360DB are definitely worth their default price of ~$600 to $650.
Upvote for the great description and review.