kennyb123,
I understand what you are saying about adding the Sean Jacobs DC4, but it isn't possible to hear it in my system. I don't want to pay $7K for a power supply that I can't hear in my system prior to purchasing. Some describe the Dave as being accurate, clinical, and mechanical sounding. I don't believe the power supply would change the tonality of the Dave, but I could be wrong. I don't know if that description is true or not, because I haven't compared any DACs to the Dave in my current system. I'm trying to determine if there are other DACs below $20K that can present a 3D-soundstage like the Dave, but are more musical than the Dave? I've looked into the TotalDAC d1-seven and MSB Premier, both are over $20K.