CD Mat

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Roderick2 wrote:

Roderick2 wrote:

For those of use who have already uploaded our CD collection on to a NAS drive in FLAC format (indistinguishable from the 16/44.1 CD source) and checked against one of the various online databases that we had achieved a bit-perfect copy each time we uploaded a CD, I am wondering what could possibly be gained by the use of a CD mat.

 

 

 

Is a FLAC copy is entirely indistinguishable?  I havent found it to be so.

Admitedly I have only tried comparing a streamed FLAC from Tidal with the CD (using the same DAC) but in every case I prefer the sound of the CD, (and I am fortunate enough to have an extremely good CD transport.)

I appreciate that there may be differences in mastering etc, but no instance have I ever prefered the Tidal stream to a CD.

Does a FLAC file from a NAS drive sound better than a streamed FLAC? I'd be interested to know from those who have made a comparison.

flac

Provided the same mastering is used a flac file is bitperfect identical to the cd.  Whether it sounds the same or not is a different matter. The DAC in the CD player may be different from the DAC used for the FLAC file (but I doubt this would be audible, given the high quality of modern DACs). Level differences are the most likely explanation for perceived sonic differences, since the brain interprets louder as better. Even really tiny differences matter here, so levels should be matched with a volt meter (the audibility threshold is about 0.2 dB). There could also be a gain mismatch between CDplayer/Dac on the one hand and the amplifier on the other, resulting in clipping.

Willem

Interesting. I use a

Interesting. I use a Accuphase DP 560 CD player which has the option to accept digital inputs, one of which I feed a Tidal stream from a Moon MiND 180. The amplifier is also Accuphase  (E470) so I would be astonished if there were an incompatabity between CD player and amplifier. 

I take you point about the level from the Moon could be less than from the transport side of the CD player; I haven’t measured it. 

The difference in sound is not that which is normally expressed in “hi-if” language, it’s just that the CD sounds more real, more convincing and ultimately more engaging than the Tidal FLAC. 

If you only listened to the FLAC you would be happy, no doubt,  but not after hearing the sound from the CD. 

Of course I could be deluding myself  but the delusion makes me happier with CD than a streamed FLAC. 

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