Hi. I have an auzentech x-fi forte 7.1 sound card. Since windows 1903 it no longer works. I'm interested in replacing it.
Yes, only a madman would keep updating windows when it just risks breaking things over and over. Replace Win 1903 with prior version. Your world will not implode. Quite the opposite. Treadmills are for mice and hamsters. Paying $150 plus problem ID and resolution time just to stay on that treadmill? Okay then!
However you asked more, so... for premium cans, there is no sound card that's sufficient. You want digital output, to a DAC, with a linear regulated PSU powered gain stage using at least 18V. Better analog ICs require more than the 12V a computer PSU produces, and more voltage still for high-Z cans.
I repeat, there is no sound card powered by an ATX 12V PSU that can do justice to 600ohm cans. Unless you only like low volume before distortion. Theoretically it is possible, to take the ATX PSU 12V input, use a switching boost converter, throw a ton of filtration on it, then use a linear regulator to drop back down to the target voltage, but nobody does that because computer sound cards are more about snake oil than benefit after a certain point.
There may be a product that ticks all the boxes I mentioned, but I haven't kept up with that since there is no real innovation in tech that changes DAC to linear PSU powered class A headamp, available for $150, unless you build it yourself and are a super savvy shopper for discrete components or have some suitable parts already lying around.