16/11/09 05:08:39.65 40vEy2lY.net
The F-1 uses a Xilinx FPGA and TI isolators in lieu of the Murata's (note the lack of the Murata box).
It does offer the advantage of placing the clocks on the 'clean' side of the board
- this does improve the isolation by providing GI from the USB power - but not on the USB data lines.
This form of isolation becomes less important if you feed the F-1 a separate clean power source then the PC USB.
This can be done with a split USB cable, or using a Remedy, Regen or Wyrd which substitute a well regulated low noise power feed to the USB power lines.
The SU-1 uses a similar scheme for SPDIF isolation - but adding BNC, Coax optical and AES to the outputs (also note the lack of Murata boxes).
だと。