Originally Posted by Frank
Are there any objective measurements which demonstrate the effectiveness of the BDP-83 modifications (other than with respect to the 4xS/PDIF board)? Has anyone here done a subjective comparison of a stock BDP-83 with a modded BDP-83 (other than with respect to the 4xS/PDIF board)?

Well, objective measurements, likely not. There will be two groups on this, those who suggest the mods cannot possibly make a difference and those who swear they do. Perhaps the truth is somewhere in between.

I had the 4xSPDIF board done at the same time as the other digital transport mods so am unable to make any judgement on what improvements accrue to each one individually.

It is my subjective judgement that the mods do make a small difference in video quality - slightly smoother with better contrast. But these improvements are small and elusive and may, in fact, be impossible to distinguish in proper A/B testing.

Audio quality is much improved but, again, this is more a result of using the 4xSPDIF mod to bypass extra A/D conversions and avoiding the Oppo analog section (that in a $500 player is unlikely to be best-in-class).

My Kit: 861v8+ID41, 800v4, UHD722, MD600, MS600, MS200, Oppo BDP-203, Genesis 201, Genesis 350 SE, Genesis S4-8 Sub, BG 520i, VTL MB450 II, Krell Showcase 7, Genesis 928 Subs, Danley DTS10 sub, SVS Ultra 16 subs.