Originally Posted by spritzer
All but a select few NOS dac's are very rolled off in the top end plus all the other issues (mostly to do with the output stages). I had some for fun back in the day but I really fail to see the point of having some of the most revealing transducers in the world only to couple them with less than revealing sources.
Sorry Spritzer, I don't agree here. Having had top of the line Meridian and Naim OS DACs and then 2 NOS Audio Note DACS, the treble detail is as good, as extended and as detailed in the NOS DACs. And if we are saying here tubes roll of the treble? Then there are many amps and output stages that don't do that at all.
Also you do know Audio Note DACs DON'T use a brickwall filter at 20k or whatever, to take out the so called 'harmfull' sonic shadows. The removal of this filter is another step IMHO and in listening test, that takes 44.1 to another level, as well as NOS. Remember why the manufacturers built OS in the first place, to take out the sonic shadow, and to do that, they HAD to upsample to built a cheap and acceptable filter.
In digital you can't create new resolution from a set value, or information that is not already there. I accept 96 or 192 material from good masters is better than RedBook, that is another subject. What I am saying is OS blurs the sonic, and ruins the treble in particular.
The other thing I have found, is I prefer R2R type chips in my DACs, (ladder type). It justs sounds better. Delta Sigma sounds steeely, more hi-fi, just plain false. I encourage others out their to go against the masses, don't believe the big manufacturers, and listen to a good NOS DAC with R2R chip set and no filter. I can listen to 96 material on my DAC, so I don't miss the Delta Sigma OS capabilities.