Price Reduced even more... need to move it. Great DAC made better by Ric Schultz of Electronic Visionary Systems. The Oppo DAC3 started as a great DAC using the top of the line ESS ES9038 PRO chips. Ric's modifications made the sound much more open and clean. I especially noticed improvement in the bass response and dynamics. The User Interface via Sonica App and Network connectivity is pretty intuitive. Even has Bluetooth and WiFi. This unit has the differential and single ended outputs enabled. ($1000 modifications) Cash or Paypal or Venmo. Buyer pays shipping or pick up in San Jose area. Mods include:
1. Cleaned up noise from fuse.
2. Eliminated a distortion producing part from the AC line.
3. Eliminated the 110/220 Volt switch and connector.
4. Hardwired wires from input of transformer and twisted them.
5. Mounted the toroidal transformer on hardwood (glued down) and secured with plastic screw and nut and eliminating the steel bolt, nut and cover and isolating it from the steel chassis.
6. Hardwire the secondaries of transformer to custom hand made damped diode bridges eliminating cheap diode bridges.
7. Damped power supply caps and regulator heat sinks.
8. Changed cheap regulators to modified super low noise discrete low impedance regulators.
9. Changed caps on output of above regulators to much better ones.
10. Eliminated inductors from the power supply lines.
11. Changed caps on output of 3.3V power supplies for the DAC.
12. Installed better sounding heatsinking on DAC chip.
13. Remove entire output stage and replace with modified discrete output stage using state of the art resistors and filter caps......this stage is direct coupled....no coupling caps.
14. All wire for output stage power supplies and inputs and outputs are hand made pure copper in damped cotton.....and installed in the correct sonic direction (very, very important).
15. Modified Wima .33 poly prop caps used as bypass caps in output stage power supply. See here for pics:
16. Change clock on DAC to low jitter "femto" clock.
17. Digital input board completely isolated from steel chassis and only grounded through its ribbon cable.
18. Ribbon cable from the digital input board damped with cotton braiding.
19. Digital input board and brass struts damped.
20. Eliminated a distortion producing part on the coax digital input and changed the coupling cap on the coax input to a modified Wima.
| 
