Does anyone out there NOT hear a difference in CD

DACs have advanced since the early 90s (as have all-in-one CD players). Better, more resolving chipsets is one reason.

If you want to give the Cambridge a try, why not watch for a used one to come up for sale and buy it? You can often buy-and-try used gear, and re-sell if you don't notice an improvement over the PD-65, without losing too much money in the process.

Jeff, obviously you mean humans (since information/technology by definition cannot create itself; it takes an intelligent source for specified complex information) are giving birth to a new digital era. But, your poetic description is enjoyable.

I must agree with Tvad. As a long time owner of a PD-65 (I sold it a year ago after 14+ years of great performance), I can say this is an unbeatable player standalone. But you will get magnitudes of sonic improvement with your money invested in a top-tier DAC from 5-10 years ago than any new player for the same price.

I tried a bunch of DACs over 12 years from the best value ever Counterpoint DAC10 (I am kicking myself for selling it) to the ARC DAC3 (rather fatiguing and sterile) to the awesome Manley and VTL Reference tube units, and later Electrocompaniet ECD1 and Classe DAC1 which are both now under $1k. The Classe particularly is a great great sounding component and has a hint of the Manley and VTL sound as it uses the same UltraAnalog chipset.

Along with the Genesis Lens, the PD-65 was a great transport to these many DACs. But it really was the Manley Ref DAC that was so superb especially after having the audio and power supply sections significantly updated by GNSC. Nobody would have ever known I had a $400 "transport" in the chain. Having the Aesthetix/CAT/SoundLab at the end of the chain surely helped a bit. 8-)

Only when I wanted to scale down the number of components did I change to a single player. But I have kept the Manley as it has a classic rich and bloomy sound that is nothing like any other have I heard.

I would not pay as much attention to the sampling rates or number of bits but rather the analog output stage and power supply. These far more affect the resulting dimensionality than any of the games being played in the digital domain. But don't expect to hear major differences here if the rest of the system is not at the same caliber as the DAC under consideration.

I see two Classe DAC1's now on here...both sold. They sell in the $800-1100 range and go fast. You could jump on one when it comes up, play for a week or two and sell it for the same price if it is not to your liking. But I think you will be presently surprised. The digital cable makes a huge difference here in the portrayal of space and body of instruments. And the solid-state-based Classe can pull this off quite well.....again due to the UA chipset. But the rest of the system must have this resolving power to appreciate this.....and far too few digital playback systems have this.

John

Fruff

To your initial question:

"Is there a significant difference...?"

A local dealer should help. Try to find 2 players that represent different
approaches and price points and audition them in the same system. One
other test may prove useful:

See if you can audition a Cary CD 303 or similar model with DACs that are
adjustable for O/S rate and N/O/S operation. (The Cambridge may qualify,
I'm not sure). The Cary also has tube and ss outputs, all switchable from the
remote. A local dealer will allow you to toggle through the options as you
audition. If you find these differences meaningful you can proceed with
confidence that you'll hear differences between players. If these differences
seem less significant, you can proceed with caution - or not at all.

Good Luck,

Marty

PS - I own a 303 and have found the differences meaningful, but be aware
that the output level between the tube and ss out is different and must be
matched for comparative purposes..

Considering the equipment that you currently own, you should be able to hear differences between the Cambridge and the Pioneer. You mentioned that a clear improvement is needed if the switch is to be warranted. Whether that happens depends on your tastes and system synergy. Keep your expectations reasonable; to a certain degree you are taking a step sideways.