I just bought the KDL32EX720 and found I need to turn the volume up close to maximum to hear it on my HDTV channels using my Comcast DVR. After buying a pair of wireless headsets, I noticed I didn't need the volume very high to obtain sound with the same HDTV channels.
This got me to thinking external speakers might work nicely with this TV.
I'm wondering if people have any experience with this unit and external speaker systems. In this case, the unit is in the master bedroom with the TV about 4 -6 feet from the viewer.