What amp is best?

Since you are apparently going to need 7 channels of amplification, you need to answer a few questions before anyone on the forum can provide you with useful commentary:
1. What is your budget?
2. Will you consider two amps (a 3-channel and a 4-channel combo, or a 5-channel and a 2-channel), or are you limited to a single-chassis amp?
3. How much power do you think you will need, given your listening tastes and the size of your listening room?

If you want to start with 2ch serious listening than you ought to get an integrated Unison Unico(free trial or for a misurable price for a week or so) or Plinius 8200.

I have thought about an x250 for the 802's and an x5 for the rest or an hpa3 for the fronts or an hpa2 and an amp5 for the rest.

I listened to a Pass X150 in the same room as a Proceed HPA-2 both playing N801s and I have to say that I loved the X150. It is expensive for 150W but man was it nice. The proceed was nice too but not quite the Pass. May not be the most cost-effective for 7 channel however.... Proceed is way more accomodating with HT. At least you have dealers in your area! I only get to visit them on business trips. Go and audition them and see what you think. Arthur

Keep Canada green, buy Bryston. No. I am not related in any way to that concern, save and except as a satisfied customer. Good day!