I would go with a Meridian 561 or 568 then the Proceed AVP or AVP2.
On the balanced outputs it is best when the pre-amp is fully balanced but results do vary so you should try for yourself. If your interconnect runs are going to be long then you will benefit more from balanced outputs.
You should really try and audition A/V pre-amps in your home since it is a sizable investment. It is the only way to be sure you made the choice that is right for you.
Good Luck
On the balanced outputs it is best when the pre-amp is fully balanced but results do vary so you should try for yourself. If your interconnect runs are going to be long then you will benefit more from balanced outputs.
You should really try and audition A/V pre-amps in your home since it is a sizable investment. It is the only way to be sure you made the choice that is right for you.
Good Luck