On Denon site i put the model 3808A and the serial number and they found that :
Changelog of AVR3808A
Crackling noise on surround back speakers during playback of DTS-HD-MSTR 6.1 disc.
"No playback of HD-sat receiver after selects another source. If you switch on AVR with input e.g. SAT and HDMI is configured of HD-Sat receiver can you watch the HD-movie. If you toggle between Sat and another source is the HD-movie not visible."
AVR-3808A freezes while streaming audio via a network device after 2 hours.
After main power off/on, Parameter check [DISTANCE] shows SURR.BACK speaker instead of SUBWOOFER
Setting of Repeat mode and Random mode are not memorized after upgrade the unit.
If Volume of the unit is operated when the sound level changes from
""DIRECT mode"" to ""Another mode"" when ""DynamicEQ mode"" is selected,the level might become large.
When the input signal is changed while displaying the Audyssey Setting screen of MENU, the key might not be able to be operated"
Translation mistake in OSD language.
The GUI and OSD of the A/V amplifier doesn't operate correctly when the A/V amplifier is connected with "iPhone 3G".
Improvement of the Audyssey Dynamic Volume function. (For only PAY-Upgraded models.)
It is for all the 3808 A or for that 3808A?