External DAC for Sony SCD-777ES

I have an SCD-1 (balanced version of 777ES) with SC4 and many other mods, which I have compared directly to my stock Theta Gen Va DAC throughout the development process. RBCD on the SCD-1 surpassed the Gen Va at an early stage in the mod process.

I think it would have been unusual for Kern to have modded an SCD-1/777ES without installing some kind of aftermarket clock. I've had three iterations of Audiocom Superclocks in the SCD-1 up to the SC4. The SC4 is a big improvement over earlier Audiocom clocks, which in their day were themselves considered by several pro modders as the best available.

There are lots of things you can do make the 777ES near SOTA, but if resale value is a big consideration you might do better elsewhere.

Dcaudio,

A new power cord is nice, but if you want to take the unit much further, the next step after the SC4 would be to replace the stock 4-pin rectifier bridges on the Power Board with discrete Schottky diodes. If you don't have the capability yourself, then Reference Audio Mods does it. With this mod there is improvement in all areas, but particularly in bass control & dynamics.