Or maybe he can find a used one?
I used to own a Metric Halo ULN2. I miss that little beast. I've never had the pleasure to work with a Prism interface... yet.
Yes: https://reverb.com/fr/item/46144089-prism-sound-lyra-1-usb-audio-interface?bk=eyJhbGciOiJIUzI1NiJ9.eyJqdGkiOiIyZWU4OGQzMi0zODZhLTQ0MzMtYWJiOS0yYmNmZTM2Nzk1OWQiLCJpYXQiOjE2Mzk0NDUzMDMsInVzZXJfaWQiOiIiLCJzZXNzaW9uX2lkIjoiMGRiOWRhZmYtMDUxYy00NGNiLThhODMtMDhhZTdkZWM0MGQ5IiwiY29va2llX2lkIjoiNzQ0Y2E4NzEtMzc4MS00N2UwLWFhM2UtNzQ1ZjlhMTk5MThjIiwicHJvZHVjdF9pZCI6IjQ2MTQ0MDg5Iiwic291cmNlIjoiTk9ORSJ9.jHYx9vG1ZzNs9W1Rz3t9M7EW1iaHWqFzY3ptFmyPrw4
for example, but its the Lyra 1