The P3 has two 'high current' outlets that are filtered and surge protected but draw their juice from the house AC - they do not draw power from the regeneration part of the P3. The 750 AV limit of the P3 is not affected by anything plugged into those two outlets. There is plenty of power for all the front-end pieces you want and it looks like your amp as well.
If you want to be sure, go to their site and find the email address for their sales dept (under Contact Us). I sent them some questions and they answered within an hour or so.
If you want to be sure, go to their site and find the email address for their sales dept (under Contact Us). I sent them some questions and they answered within an hour or so.