Hello all. I would really love to try out any of these models to see what all the fuss is about. I am not setting out to purchase any of these items, although I may consider it. I merely want to give them a test run for a day or two. My amps at the moment are the RSA P-51 Mustang and the JDS Labs C421 (AD8620). Both should be able to supply the headphones with enough power for me to get a feel for the sound. I have lots of positive feedback and would greatly appreciate the gesture. I am also very hygienic and would enjoy a unit owned by a like-minded person. Asking from those located in the lower 48 states. I will provide payment for shipping costs. Thank you for your consideration!