Help with integrated amp choice


New to the site and admittedly proabably not at the level of sophistication of most on here but here goes.
Attempting replace my Denon 750 for around 2k driving a pair of Polk 10s 
Have had hooked up the NAD 368 and now the Nova 300.
First question with no input and the amp maxed out should there be any noise (hum/buzz)
Second it may be just my bad audio memory but the  Denon just seemed to be more accurate.
Now I know that may sound like heresy to some but is it my ears or my expectations?
Using California labs CD for the testing
I’m lost  just trying to listening to 60 - 70rock
Would appreciate any help and direction
Thanks 
Jim
jwfitzdo
used prices on the H-160 are quite good, as it has just been replaced by a new model...
Thanks everyone 
This was valuable info.

Tablejockey not sure what your response meant?
You'll get even better suggestions here if you share what aspects of sound reproduction you're looking to improve upon and/or that are most important to you.  Knowing what kind of music you listen to really isn't enough to go on here. 

jwfitzdo-

just poking fun. The question seems impractical.

My lame attempt at humor was ignored. Never mind.

The Creek Evolution 100A is an excellent choice.  Very versatile and sounds great.