Whether or not you are using the soundcard for D/A, I would recommend the Lynx if price is no issue, and the Audiophile 192 if price is an issue. In your application, I would not necessarily consider an external DAC, your soundcards listed will be very nice all by themselves (especially the Lynx). You might want to check out some 1/4" to RCA adapters, and similar adapters for XLR if using the Lynx.