finally, the most important, the compare 6500 and 4100

http://www.tvx-online.net/images/4100_002.JPG
4100

http://www.tvx-online.net/images/6500_003.JPG
6500


http://www.tvx-online.net/images/4100.JPG
http://www.tvx-online.net/images/6500_002.JPG
above is 4100, 6500 is in the bottom

http://www.tvx-online.net/images/4100_003.JPG
http://www.tvx-online.net/images/6500_004.JPG
above is 4100, 6500 is in the bottom and more functions

http://www.tvx-online.net/images/4100_004.JPG
http://www.tvx-online.net/images/6500.JPG
from the back
still above is 4100, 6500 is in the bottom

http://www.tvx-online.net/images/a_009.JPG
the biggest different is the material ,
check the front panel,6500 made by is aluminum

http://www.tvx-online.net/images/PP.JPG
all most same from backend