Single box CD players with NO oversampling?

If it is 4 times oversampling it is not the same as Audio Note. In addition, The ARC does not use the same chipset as Audio Note or the 47. The Audio Note uses no up or oversampling and no digital filter. The results are astonishing.

Zaikesman. There have been hundreds if not thousands of Audio Note Dac's sold world wide. I have never heard of one person who had a problem because of what you have described. Many are not used with Audio Note amps. A Goldmund amplifier produces a bandwidth from dc. to over 2 mghz. Does that imply it can't be used with a speaker that has a frequency response of 20Hz-20kHz? What are you basing your opinions on? Are you familiar with the technology behind a Audio note DAC? Ever heard one? Eliminating a brickwall filter should not hurt any amplifier or speaker on the planet. You should do some research before making such claims.

Hi Z'man,
I appreciate your threads. Your comparison on upsampling vs. non-upsampling was a fine piece of work. Didn't mean to come across as defensive.

The Audio Note DAC's do not use digital filters but do use custom analogue filters. In fact, the quality of these filters improves as you move up the line.
They all use the Analogue Devices AD1865 18 bit chip, they have no optical link and use these custom tailored analogue filters to roll off enough of the carrier frequency at 44.1 KHz to render it inaudible.
In addition, from the DAC 2 up they use the patented interface matching transformer coupling curcuit in varying quality as you move up DAC levels. Many actually using transformer coupling to the output stage instead of capacitor coupling.