I also have Balance issues. I am running 6.5 on a macbook pro. If I use my condenser mic, sometimes it may record for a few seconds but it will then cut out with a message saying that a usb device is drawing too much power and device is now disconnected. This only happens when I use phantom power.
If I use a Sm58 it will maybe work sometimes through a recording other times a few seconds and will the just cut out completely, no message apart from audio device stopped working. This is really frustrating. I had vocalist round tonight and Spent a good while trying to get it to work. In the end I had to use my nio 2/4 interface instead. Any ideas? I'd rather use the balance because of the. preamp, either way it is an expensive ornament at the moment.