without a proper USB-connection (particularly for recording, reamping) KPA even with its promising technology is not state-of-the-art. Hope the future firmware will solve the issue asap & without any hardware modifications.
You don't need USB to re-amp...you use the Monitor Out.
What studio uses USB for recording?
I'm willing to bet that the majority of KPA owners will be guitarists, not studio owners.
I have a digital setup, as much as I love analog for it's mojo I'm not going to be singing it's praises on the outputs of a digital unit, especially when it comes time to re-amp from my DAW and I want convenience and control. The point of the KPA is after all to replace an analog component completely, so I think it's only reasonable to expect to be able to (eventually) record directly out of the unit with something slightly more modern, controllable and convenient than barely working SPDIF.