Super PLS is Samsung's attempt to improve IPS displays, they suggest that this technology will provide better brightness and viewing angles as well as lowering production costs, the latter benefit perhaps being the most attractive.  At a selling price of $1000 this might be hard to believe as is the 4th most expensive 27" on NewEgg right now.  ModSynergy also ran into issues trying to use the onboard speakers as HDMI cannot provide the maximum resolution of 2560×1440 and while using Dual-DVI you can get sound because there is no dedicated sound input jack. See if it is worth the investment by checking out their full review.

"Today we look at Samsung's second integration of Super PLS technology in their lineup with this time the Series 9 S27B970D. What a great follow-up to the Series 8 S27A850D we had for you one month ago. It will be interesting to see and pinpoint the differences between both models aside from the higher price tag. One of the key differences being pushed off the bat by Samsung is the built-in calibration engine and factory professional tuning that the Series 9 S27B970D offers out of the box for unmatched visual experience, according to Samsung."

Here are some more Display articles from around the web:

Displays