Sorry... i'm not up to speed on parasound, I just assumed, Ah...
Anyway, I took a look at your amp, Your right that's beefy! 400-watts into 8-ohms should drive those speakers just fine.
As far as cabling goes I've used MIT reference, Cardas golden Ref. and Nordost Quatro-fil. In the end I kept the Cardas, the sound was good and the cables were easy to work with. (not to heavy or to fragile)
Anyway, I took a look at your amp, Your right that's beefy! 400-watts into 8-ohms should drive those speakers just fine.
As far as cabling goes I've used MIT reference, Cardas golden Ref. and Nordost Quatro-fil. In the end I kept the Cardas, the sound was good and the cables were easy to work with. (not to heavy or to fragile)