Sony Scd777ES vs Sony 9000ES Modified

Anybody do a side by side on this two: Sony SCD777ES and Sony 9000ES modified by Stan Warren? I would like to know the comparison on CD and SCD.
Hi: I did not do side by side comparison but I owned 777es for two months and later sold it, bought 9000es which Stan Warren modified. Stan version, on my opinion, is way ahead of stock 777. Simon
Is the 9000ES capable of multi-channel SACD playback or just two channel the way most 1st gen. SACD players are?
The 9000ES is 2 channel version.