Experience with AudioTechinca warranties?

[airbadger]

Hi guys, new member here. I have pair of ATH-A900s I got from AudioCubes and they've been great but tonight the right side died. It should still be under warranty so I'm going to call them first thing on Monday to see if they'll take care of it. I have a couple quick questions for anyone that has dealt with their warranties:

1. Is it fairly quick and painless? How long do they usually take to repair and send 'em back?

2. Does it make a difference that these are imported headphones from Japan?

Thanks guys.