Here is what I have done.
1. Boulder Mods to Touch.
2. Boulder Power supply.
3. Zu Mother Power Cord to Boulder power supply.
4. Power supply plugged into my Synergistic Powercell.
5. Boulder upgraded umbilical cord.'Nitro"
6. Morrow Audio D4 digital cable with Eichman silver RCA's.
7. Using Dac section from my Cary 306 SACD.
1. Boulder Mods to Touch.
2. Boulder Power supply.
3. Zu Mother Power Cord to Boulder power supply.
4. Power supply plugged into my Synergistic Powercell.
5. Boulder upgraded umbilical cord.'Nitro"
6. Morrow Audio D4 digital cable with Eichman silver RCA's.
7. Using Dac section from my Cary 306 SACD.