Half the information on CDs is analogue


I would like to argue that one of the reasons that some transports sound significantly better than others is because much of the information on a given CD is actually analogue (analog) information.
An excellent transport does not just read digital information: 1s and 0s (offs and ons); it must be sensitive enough to pick up the other information that has been stored as a physical property of the CD medium. This 'physical' information, like the tiny bumps in the groove of a vinyl record, is analogue information.

Before I say more I'd like to hear what others think.
exlibris
Onhwy: The digital recorder that i was using was a stand alone TDK CD-R Audio burner. I purchased this unit based on the reputation that the TDK computer based burners had at the time i.e. as being the best and most reliable at the time for pennies on the dollar. Most of this had to do with their software, which included specific "tricks" to minimize errors, data correction and "glitching" due to a lack of buffering.

From what i can remember, i think that the ADC's and DAC's in this unit were made by AKM, which is the brand that Shadorne mentioned above. I would have to pull this unit apart to make sure, which i will do if you guys really want me to.

Obviously, this is not a "high tech" or "ultra resolving" unit. Then again, the original analogue tapes were made on a DC powered portable monophonic Marantz unit. Even so, the recordings made on the Marantz unit sound more realistic in terms of tonal balance than the direct feed "dubs" made via the CD burner. As i previously mentioned though, the digital dubs should have simply recorded what was being presented to it, NOT shifted the tonal balance in quite noticeable fashion.

As far as recording using a computer or sound card based device, i wouldn't bother. That's why i bought the stand alone Audio based burner. Sean
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Exlibris,

May be your system is very resolving and sensitive to changes. I have never heard the slightest difference in one digital cable from another.
Shadorne...Me neither. Perhaps we are lucky. They say that having absolute pitch hearing makes a lot of music, which is off key, sound bad.
Sean, I don't question your specific results, but do they really warrant the blanket statements you've posted about in this thread and others about analog to digital conversion?
> TONS of equilization...

Digital music is not alone in the area of needing special equalization when CD's are produced.

Keep in mind that in the production of all standard vinyl LP records, the RIAA equalization curve has a 40 dB range of boost and cut that is applied to the signal. It is not a straight linear drop.

See http://en.wikipedia.org/wiki/Image:RIAA-EQ-Curve.svg

In playback of an LP, the phono preamp must apply perfect inverse equalization and also assumes the record production plant equipment perfectly applied the RIAA curve to start with.