Very Nice. are you using or have you thought about using the Optical out? on the AK?
Im very happy with the setup at the moment. may consider going optical out in the future. but i doubt it would make a huge difference.
Earphonesolutions have them for $299 definitely with warrantee and free shipping within the US, they are probably clearing the w4 out for the new w40.
They claim an improved audio performance, and I like the simple logo in the picture with the phone remote cable included.
I'll be very curious what "improved audio performance" will mean!