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Best Cable Option: Streamer to DAC

I was recently told that the inherent limitation of SPDIF connection is PCM 192Hz. I didn't know that. Many new streamers spec 384KHz and I am also told that to achieve higher sample rates (and presumably the full capabilities of the new units) I should use USB rather than SPDIF.  So it made me wonder what actually is the best connection between streamer and DAC:  USB, COAX BNC-SPDIF, AES/EBU or something else?   From a practical standpoint, is there any audible difference from the higher sample rates?  If so, my system should be able to reproduce it.  I'm just looking for help, not trying to start any arguments on here.
papafrgog

Showing 1 response by nordicnorm

nordicnorm
313 posts
 
S/PDIF is also limited to 24 bits while USB can pass 32 bits (in case you are interested).

Is there an audible difference? Now that’s a loaded question!

My feeling is that, all things being equal, yes there is an audible difference.

I’m a big proponent of using a DDC when passing hi-res files (DSD) through USB to a DAC. I connect my media player to a DDC (Singxer SU-1) then on to my DAC (Gustard x20 Pro) via I2S. 
My media player is an Asus VivoPC (a fan-less, small form factor pc) so to remove all noise from the USB, I rely on the DDC. At lower resolutions it may not make a noticeable difference though.


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