I highly recommend that you contact Ric Schultz at EVS (tweakaudio.com) I had him do an all out mod on my 105d and I am very pleased with the results. I now have a world class very versatile player. See my post from June 12.
OPPO 105; how to beat it and at what price?
I am in the process of building my reference system around my new Wilson Alexia’s. I am currently using the OPPO 105. How much would I have to spend to get a significant audible improvement? What would that unit be?