CD players with no or configurable upsampling

Mrjstark is stating an opinion and this is by no means a fact. Many, not all, would disagree with this statement completely while others would agree totally.

Perhaps you would want to take a look at several of the best digital equipment companies in the world to see their approach. This will tell you very clearly that the answer to this is purely subjective. Two good company's to look at are EMM Labs (offer professional equipment for studios and consumer equipment) and DCS (also offers both professional and consumer equipment). I am sure Stark can recommend other highly regarded brands who are considered leaders in both the professional and consumer markets.

Cary 303 has adjustable/defeatable upsampling. If you audition one, you can compare for yourself. BTW, it also allows you to choose between tube and ss output sections.

Good Luck,

Marty

What is the advantage of having none?

It generally means the designer needs a more expensive sharper brick wall analog filter on the output - this may affect phase in the in band frequencies.

I disagree with Mrjstark. I generally find that upsampling yields a more analog-sounding result. I've had 12 CD players, some of both types, and I currently own one of each. My Creek CD50mk2 doesn't upsample but my Audio Aero Prima mk2 does. And I love both. But in my experience, upsampling doesn't matter as much as the output stage design, so there is lots of overlap in performance between the two types. The bottom line is you don't need to worry about it. Just enjoy the music!

Arthur

I had the Consonnce CD120 Linear with Non-OS 16 bit DAC (2 DACs) and no brickwall digital filter.
Smooth, relaxed, musical, yet detailed and great PRaT. Lovely analogue sounding unit. Recipient of many awards.

They make the 2.2 Reference (tubed w/ 4 DACs), Ofeo (top of the line Forbidden City, 4 DACs and better chassis), and DAC16 (DAC portion of Linear CD)