What is purpose of a cd transport?

That's how the production Audio Logic with the single power supply did it as well. A good design. I sort of miss the separate boxes from the prototype, though, because you could turn off the analog stage (and therefore save tube life) while leaving the digital stage on all the time, which seemed to help it sound better.

Hell, Sugarbrie, my PREAMP is 4 boxes. Where my friends can turn on their receiver with one button and a CD player with another and have music, I have a tuner, a CD transport, a DAC, two preamp power supplies, an active crossover and four amplifiers to turn on to get music (and then I have to wait 6 minutes until the Jadis' auto-muting goes off)! Is it any wonder people view us as "different"?

I love, I love it, Rcprince !!!!

If you listen to vinyl then you have to get the Blue Circle BC27pi phono stage, even if only for the reason it's a two box phono stage !!

Do you have separate mono-block amps ??
6 separate cables for each tri-wire speaker?

Then install dedicated AC power lines for each power cord !!

Sorry, I am getting out of control here...

The purpose is to transmit digital data to the DA convertor for processing.

A good cd transport definitely make a difference as compared to an average one.

Of course, you can said that a CD transport with a DAC will definitely beat a 1 box player provided that u are comparing in the same class which will cost more.

My advise is still keep to a 1 box player. A CD transport with a DAC sill required a good interconnect & power cable matching in order to sound good.

Sometimes, making thing complicated is a long way to achieve good sound. Keeping your stuff as simple ( CD player, int. amp & speaker ) as it is will be more easier for u to achieve a good sound unless u don't mind spending $$$.

Heck, Sugarbrie, for vinyl I only have the Lamm phono to turn on for the phono stage (maybe I should consider the Blue Circle, though the Lamm is really an extra box itself because my Jadis has its own world-class phono stage), but then I also have to turn on the Walker Motor Drive, the Basis' motor and the vacuum for the vacuum holddown! And you guessed the monbloc amps, with two biwires for the highs and a lonely single wire for the bass. I won't go into the four dedicated lines....

Honestly, Jeremy's right, simpler is better if it's well-designed and executed.

There is another big reason that hasn't been mentioned yet. With digital processors, such as digital EQ and upsampling, or processors built into to surround processors (such as room correction and surround processing), you're better off keeping the signal in the digital domain without introducing multiple DA & AD conversions. You can use the digital out of a CD Player, but why use that if the CD player's DACS will never be used? My preference is to use a high quality transport routed to a Digital EQ processor, then a DAC, then on to the preamp.