The Guru of 3D published a review on the be quiet! Straight Power 11 Platinum PSU
A quote from the article:
We'll peek at the new be quiet! Pure Straight 11 (650 Watt) PSU. The ongoing series keeps getting updated and better. Revision 11 now is an 80 Plus Platinum certified product series....be quiet! Straight Power 11 Platinum PSU Review