Since my old Pure Sirocco 550 of knobs gave up the ghost in the USB flash drive display, needed a new plant for the living room. The sound of the system is very good in my experience. In addition, she has no other modules and speakers than the much better-rated copies of the 7 Series. The differences are indeed one hand the FM RDS the 9 Series with the DAB version, which the DAB version of the 7 Series has not, on the other hand in the WLAN or Internet radio capability. Edit: Since the LAN or WLAN connection was not set up easily and that bothered me the not so good reception of the plant, I sold the unit. For the living room, the LG-FA168DAB now has jurisdiction (s. Review).