Originally Posted by ap1
Since the OP already has TT, I assumed that he has phono preamp too. Otherwise he won't be able to listen records at all.
That's probably all true, but for some reason he came here asking questions about an add-on for his computer that would record LPs without using a separate preamp
Sonar STX is still cheaper than any comparable in quality USB interfaces, and probably priced lower than any other high quality cards.
That depends on how you judge quality. What you are really saying that as you judge quality, this is all true. My point is that there are a number of effective solutions that are more complete, better address the OP, and oh by the way cost only a fraction as much.
When one records from vinyl, it is reasonable to use the best A/D converter as possible.
Again you are applying your values. Technically speaking the use of the best A/D converters possible is a complete and total overkill for digitizing vinyl because vinyl, as a legacy analog source, has only modest technical performance. For example have you ever digitized any of the great legacy or modern SOTA test LP's and analyzed the results to see what kind of technical performance is possible? I have digitized many of them and done my homework.
You may not be aware of the technical limitations of vinyl, but I've been digitizing it for over a decade and I'm acutely aware of them. Remember, I'm an EE who was an audiophile back in the days when vinyl was all we had. I have long used audio interfaces of the same or better quality as the Xonar STX.
For example I have long owned a LynxTwo (obtained shortly after introduction) and a LynxOne before that. Yes, I've digitized vinyl with a LynxTWO, and it gives great results, but the resulting transcriptions do not reflect the great performance of the LynxTWO. They reflect the modest performance of vinyl as a medium.
In fact the performance of audio interfaces has undergone considerable price/performance improvements. Today relatively reasonably priced hardware can fully exploit the performance of the LP as an audio medium.
If you do some research, you will find that vinyl transcription is commonly done using much more expensive professional interfaces like Lynx.
Being lectured about my need to do research about Lynx professional audio interfaces is ironic bordering on surreal! ;-)
I was an early adopter of the LynxTWO (introduced in Y2K). I've been doing vinyl transcription with the best available computer audio interfaces for well over a decade.