Basic question: I have both SPDIF and Optical output from my CD player to be the input to my DAC. I probably can't hear any difference between them. But assuming I can't hear a hum (ground loop), is one likely to be better than the other?
Basic question: I have both SPDIF and Optical output from my CD player to be the input to my DAC. I probably can't hear any difference between them. But assuming I can't hear a hum (ground loop), is one likely to be better than the other?
Basic question: I have both SPDIF and Optical output from my CD player to be the input to my DAC. I probably can't hear any difference between them. But assuming I can't hear a hum (ground loop), is one likely to be better than the other?
Emphasis on 'should' - sometimes a design screwup means one will perform better than the other, but it would need testing to find out.Optical is spdif... Should be the same...
Let me rephrase: Optical or RCA?Optical is spdif... Should be the same...
Let me rephrase: Optical or RCA single ended?
No, you need an RCA on each end for it to work...
The DAC sits on top of the CD player and yes.How far is your DAC from your CD player, close enough use the coaxial digital cable (100 Ohms or 75 Ohms would work).
Your DAC has a coaxial digital input?
BluRay restricts the quality artificially - they can "control" the use of the digital content over HDMI using HDCP, but not over coax/optical S/PDIF.I thought some devices limit the bandwidth on optical vs digital coax. For example, during playback of a Blu-ray disk with a lossless audio format, 192/24 audio is only available from the hdmi connection. Digital coax is less than that, and on some systems optical is less than digital coax.
Electrical signal propagation velocity in typical cables is about 200e6 m/s, roughly the same as your figure for light in plastic fibre. That should be no surprise since electrical signals are actually electromagnetic waves (light) travelling in the cable dielectric (plastic).Use copper coax if you don't want to be waiting around all day for the light to propagate through the fiber and the music to start.
Electrical signal via copper - about 300,000,000 m/s.
Light via fiber - about 204,190,477 m/s.