I tried NAD751. Its built-in amp is way better(?) than onkyo797 or denon3802. However I did not like the digital
sount of it. That is cd/dvd sound fed through digital input of the receiver. I tried NAD, Onkyo, Denon, and I liked the Onkyo's digital sound best, although their amp was not as good as NAD. But that is my taste. Not that I bought Onkyo. I'd love to try Marantz, given that I kind of like Philps product.
Ken