Seems that the AV1SE upgraded units are slowly being returned and the new AV1SR's are finally becoming available. Is the lack of posts on percieved impovement after upgrade due to dissapointment or simply lack of time due to all that listening? Any feedback much appreciated, I for one would especially like to know if there is any improvement in the dolby digital imaging. I currently own a Yamaha A1 which works pretty well subject to using a quality amp for the front speakers but I'm looking for a major impovement in cinema effect. Forget all the utilities, has anyone compared a Lex MC-12 decoder with the decoding achieved by the much less expensive AV1?