Novice Digital (wired) Question(s)

Jitter may or may not be an issue for you depending on the DAC you use. For me it was a non issue, even with an inexpensive $200 DAC. I read so much about jitter and wondered if it was present in my wireless systems using an Airport Express or Apple TV, even though they sounded fantastic and as good or better than my CD players (an OPPO, an older Denon, and an older Sony). Just to see if I could improve the sound I tried an IFI S/PDIF iPurifier and it actually degraded the sound making it somewhat muddled. I also tried the Wyred4Sound Remedy Reclocker and I could not tell a difference.

I would caution you that there have been reports that some people had problems using the Cambridge Audio DacMagic with an Airport Express.

Thanks for the info, ljgerens,...It’s been most helpful to me in making this process understandable!

Finally got some spare time to do some more web surfing on the topic and, based on what I’d read, decided to go ahead and hook up the Airport Express to the PrimaLuna’s CD input and stream from my Mac’s iTunes without a DAC other than the internal one in the AE.  The Prologue Classic is pretty much old school basic insofar as it only has RCA inputs so the Apple Express is connected via the (3,5mm?) stereo pin into right/left RCA.  Early impressions, after streaming Paul Simon’s “Graceland” (ripped to iTunes from my CD) using the “Remote” app on my iPhone are...well...I’m smiling.  At some times I’m thinking it sounds better than my old Denon DCD 1560 CD player...other times it sounds about the same to me.  Interestingly, I’m finding I have to turn the volume control on the PrimaLuna to about “10:30” with this digital file to attain the same sound pressure most of my LPs create thru this setup (Music Hall MMF-5/stock Goldring cart > Music Hall PA1.2 stage > integrated amp) at 10:00 o’Clock.  It’s always been that digital sources were inherently louder than vinyl...sometimes much so...before this.  I’ve checked to make sure all volume settings sliders on the Mac and iPhone are maxed out so I guess this is just a different order to things.  All in all, extremely pleased!  I’ll probably just continue to enjoy the ‘tunes this way until a “no obligation” type scenario presents itself with regard to trying out an external DAC, if ever.  Truth be told, I still like my vinyl best with this rig but I sure would’ve missed out on a lot had I kept digital streaming relegated to my one-step-above-boombox, workshop system!  Anyway, thought someone might be able to glean some useful info from my experiences here.  Thanks again!

Glad it is working out for you. The internal DAC in the Airport Express is pretty good, probably equal to the built-in DACs in many receivers, integrated amps, and CD players. It sure makes it convenient to listen to your favorite music. 

Glad you got it set up. I'll admit that I don't know if I know what jitter sounds like but when I stream via Apple TV>optical>DAC the sound quality is not as good as when I stream (or play ripped CD) directly from computer> USB>DAC. It isn't a huge difference but it is there.

So I use an old iMac to play ripped CDs in iTunes through USB to DAC and I'm satisfied with that.

Will consider upgrading from $150 DAC in the future.