I have an 83 with Audiocom's "full house" Signature HDMI upgrade. Burn-in is now just about completed and I'm delighted with the improvement in both audio and video quality on SACD, DVD-A and CD compared to my previous G98 and Oppo 80. However, I should make it clear that I added a HD621 at the same time as the 83 and, because of lack of space on my system rack, have not been able to A/B the players. My judgment is therefore necessarily subjective but I certainly would not hesitate to have Audiocom upgrade equipment I might buy in future.


NJH Smith