need help for ur44

hi, i am a live sound engineer .alongwith live shows i record every live performance audio on my pc in Nuendo .from past 4 years i have been using PCI sound card INFRASONIC QUARTET.NOW m planning to shift to a usb interface… i have some questions in mind. CAN ANYONE HELP!!!

Just make a numbered list with your questions and I see if I can help.

PS. This is the WORST forum of any supplier I know. Basically dead. No moderator, 100’s of views on a topic and no answers (although the latter could be from people looking for the same solution btw.)