I know this isn't a community buy and sell forum, but I do have a new Infrasonic Quartet card that I can part with. This sound card is on the list that Larry recommended for the LP-PAN. I bought it, used it for about a week, then built another computer with high-end onboard sound that worked perfectly with PowerSDR/IF. As such, the Quartet card has been sitting in a box for over 2 years.
If you have any interest for the Infrasonic Quartet card, please contact me. I am open to offers and can ship to US Lower 48 and Canadian provinces.
Brian