Hi Kai,
When the Pro upgrade was announced, many of us wrote extensively about the differences we heard with the Pro upgrade, and I and some others then noticed a second improvement with the CI board installation.
Do a search for posts about the Pro sound changes and I think you'll have a good start on the differences. As I've noted before, most of us love the change but there were some owners who did not like the sound presentation difference. These threads would be from the second half of 2016.
I went from a D120 to the 220 Pro and the change was dramatic, and I loved it.
When the Pro upgrade was announced, many of us wrote extensively about the differences we heard with the Pro upgrade, and I and some others then noticed a second improvement with the CI board installation.
Do a search for posts about the Pro sound changes and I think you'll have a good start on the differences. As I've noted before, most of us love the change but there were some owners who did not like the sound presentation difference. These threads would be from the second half of 2016.
I went from a D120 to the 220 Pro and the change was dramatic, and I loved it.
Damon
Powernode, NAD M32, Cambridge CD transport, Analysis Plus, Nordost, iFi Nova, CSS Criton 1TDX, KEF C62
Vancouver, Canada
