Has anyone heard the Denon 103-SA?

It is available at www.audiocubes.com and is listed at $749, yet other than a .9g weight increase, I find virtually no difference between it and the "R" variant. Any thoughts would be helpful as I recently installed my very first DL-103 (yes, the congratulatory calls from friends & family, both far and wide, came pouring in)) and have been astounded to find out that all the hype is absolutely true.