But what after the ux/x3, into an amp and then mic?

But I'm guess straight to you pc?

IMHO, if you can afford, I would go fo rthe X3, it is much more powerfully hardware wise.

Also, the X3 can be used without a computer.

As far as passing audio via USB, I think the X3 has a better A/D convertor.

Will it be noticable in a final mix?? Not sure.

But, if you are going to recording the dry (while montoring the wet) and applying the plug-in (post processing), then final product will be very close.

The one thing you can do with the UX2 that you can not do on the X3 in real-time is the flexibiliy of the siganl chain with POD Farm 2.

In POD Farm2 direct monitoring you can have upto 10 effects in any order ber signal chain.

But with the PF2 Plug-In you can do it with either.