Hi Dave
Can you elaborate on what Source you typically use for Music and Movies and also if you have Upsampling and HS Enabled on both the 621 and 861
I haven't received the HD621 yet (ordered it last Thursday, but it's delayed slightly due to snow), but would expect to use upsampling (I'm assuming it will give a positive effect). Not sure what HS is.
On a daily basis, my main source is my Humax Foxsat HDR for TV. I don't have any speakers on my display so use my system for everything. For movies I'm using an Oppo 83. This is also my source for CDs, but am rarely playing them now. I also have a TViX HD M-6500A which I use for streaming my DVDs (Oppo used for Blu Rays).