Thanks for the help, Steve.
We run our performance testing with the provided power supply, and measurements are nothing short of spectacular. The DAC DAC is very tolerant of ripple and power supply noise. Interesting idea, however, to offer alternatives. The DAC DAC requires 12V at a few watts, so it's not too difficult to make an alternative power supply. We obviously can't cover DAC DACs under warrantee when a custom supply is used, though, so best to talk to us before attempting something like that.
And, yes, we are working on a 12VDC power supply connection on the 60V 1kW supplies to power the DAC DAC. That, plus the cable to connect the two. This enables the "triple stack" with DAC DAC, STM (Stereo Maraschino), and 60V 1kW power supply. 1000W max (400+Wpc into 4 ohms) of ultra clean Cherry sound with a super compact footprint! This makes your bedroom system way-out-perform most main systems.
Thanks again.
-Tommy O