Ebay has linear power modules and excellent replacements for the IEC, jumper to bypass the 100/220 switch. The person I bought from has excellent step by step photos on the product pages which show that it's a simple DIY, no soldering < $500 took my 105 to incredible audio level even for redbook, and since it has a VVC I no longer use a preamp
Oppo CDP is outstanding
I have an upgraded Oppo 103 CDP which was brought back into service for lack on connectivity issue with Micro-Rendu device today. I have gone all digital via my computer with a mostly full 8TB HHD, so while the MR issue is being sorted out, I played music via the Oppo all afternoon with my CD collection. The CDP player is now several years old, but still sounds outstanding. I have long thought that the Oppo players were the best and by far the most affordable glimpse of the great audio. I have no clue why Oppo abandoned them. At any rate, my Oppo CDP is a great performer.