Does anyone out there NOT hear a difference in CD

replacing my Pioneer Elite PD-65 with a Cambridge Audio 840c

These players use different chipsets (generation & technology wise) so the sonic rendition will be different. How perceptible the differences depends on the rest of the system AND the kind of music you listen to.

"The digital era is just beginning to give birth to itself." I'll bet that really hurts.

I was very please with the smoother and warmer sound of my stock EAD CD-1000 mkIII compared to my previous Parts Connextion modded Music Hall CD-25. The MH CD-25 was very, very bright but excelled in details.

Then I modded my EAD CD-1000 mkIII with new RubyCon ZA/ZL caps, Stealth soft-recovery HEXFRED diodes, replaced all internal wiring with teflon coated silver wire, and the Auricap cap mod on the IEC. I have no desire to replace this fantastic sounding player, as everything was much better.

Two points IMHO:
1. There are sonic differences in CDPs and,
2. The "stable platter" is a nice transport and foundation for a front end

CD players, DAC's, etc… Are not really always going to give you immdiate impression of hearing a big difference.. The only way to judge digital is more or less to listen for a more extended period of time to music you are fairly familure with, and really give them a go like a concert type playback, use several albums you are very expecting of certain things, and see how it emotionally engages you more than if you are just listening to another stereo or boom box with the same old sound.. Its hard to explain but like Vinyl you will hear a difference in impact, overall space, air, presence, naturalness… Many times its simply about Consitency, if a certain digital source can constantly please you with many recordings making a less flawed or better dynamic range, like how deep and impactful does the bass go, how smooth is the midrange and vocals, how good does the highs sound without getting harsh even at hi levels with raspier music, this will point you toward less distortion..

Many people make the mistake of testing digital sources at Low volumes, or ones that are just comfortable, you really need to drive the volume up even if it’s a little scary(not saying blow up your system) but rather let it play a little higher volume for a period of time to let things flow, see how much more control, and less distortion the digital source is making, and if you realize shes glued down really well, and you play your old source and it sounds more raw, muffled, or just sounds like your woofers are "Popping" making you think its not right than the digital is less engaging to you and you found a bit of a better digital source.. Its not an overnight experience sometimes, I believe in fact it can take a bit of a seasoned "Audiophile" to develop the taste of their own and pick out when something sounds right…

Also fact is you really have to kinda accidentally experience it to realize it, or believe it sometimes, nobody here can put words on paper and make you hear the difference you seek.

Oh and don't forget first of all some people like a different digital sound than you, which is not right or wrong, so many suggestions will be made, however also your system, cables, and even the power from your walls can effect how good one player or the other will sound in the end.

I have no issues with the PD-65, in fact I am the happiest I've ever been with my system. I was just considering replacement due to the age of the Pioneer and also, I've been told digital technology has advanced so much since that player has come out that it a new cd player would sound much better. I have to say, the Pioneer is built like a tank and the transport is dead quiet while playing. I've heard some new machines in excess of $1000 that aren't as quiet as the PD-65. Also, when I first bought the PD-65 back in the early 90's I also purchased a Theta external D/A converter. I returned it because I could hear absolutely no difference in the sound. I have been a little skeptical of external D/A converters ever since.