Hi, I won't be able to report about the "before" as my SA14 is getting shipped directly to TRL. While it won't tell you about the mod, I am going to compare the TRL SA14 with a stock 9500, which is the latest Marantz universal player with the latest Crystal dacs, an improved transport, improved HDAM output stage, blah blah. And I will compare vs my Scott Nixon Tube Dac fed by the digital out of the SA14.