Sanity with the Zhaolu mods...
Originally Posted by liwei
Thanks for the review! I'm in the market for a DAC currently and this will certainly help me with my decision. It's funny, my checking account has exactly $494.80 right now.
BTW, if you run RCA only, then pull the XLR plugs out of their sockets and remove the single opamp near the DAC_out connector. You may insert a small cap between pins 4 (ground) and 8 (V+) of this socket, to stiffen the local capacitance reservoir and perhaps cut down some supply noise.
I'd definitely remove the headphone connection and disconnect the power from the headphone amp, which shares the same regulators as the analog section of the DAC. You'll notice that the DC wires are bundled with the AC wires. Separate and twist all pairs for a cleaner DC supply.
All the above can be done without touching the soldering iron!