I completely agree with khokugo. I purchased both the P1A & P3A. They are incredible, and mine have no mods. The customer service is first rate, and I even received a phone call from Mark Schiffler asking what I thought of them. Now, how often does the president of any company that sold you something do that? If you really want the full glory of this set up, sell the AA piece here on the GON and purchase both pieces. You'll be very glad you did. Remember, upsampling is just one of the things this set-up can do.
Good luck!
Good luck!