Laptop via USB?
Laptop via SPDIF?
Computer via USB?
Computer via SPDIF?
Computer via coaxial?
Whats the best?
I use USB 2.0.
Foobar2000 --->PC--->USB--->Grace Design m903 Amp/DAC ---> Denon AH-D2000 or JH Audio 10 x3 Pro IEM.
I have read that some of the "murk" from USB listening can be removed using SPDIF, but it really depends on how the DAC interprets the signal. There are going to be DAC units that sound better using USB vs SPDIF.
USB has the lowest jitter, but that doesn't always make it the the best choice. For me.
Laptop via USB.
Desktop via USB.
I go over USB, but in the USB line I have a box called iUSB, I have been told it is a power supply.
Laptop -> USB -> iUSB Box -> USB -> DAC
When I asked about USB vs SPDIF I was told that SPDIF is really bad. This makes sense to me as when I was buying a serious HiFi in the 90's I ended up with a Naim CDS, two boxes, but not separate Transport and DAC as was the fashion then. In some ways the iUSB and Dac is similar, one Power box and one for all the processing and audio.