Unfortunately, I think in your large room the AVR300 will not have enough juice to drive those 87db NHT 2.9's.
I say unfortunately because I think the Arcam is a better match for the NHt's, as they will sound bright with the Outlaw unit. I think the Arcam will be a little more forgiving on that metal tweeter.
Personally, I would sell the NHT setup on Audiogon and get more sensitive speakers. Then you could buy the Arcam AVR300 at the steal of a price that it is .
I say unfortunately because I think the Arcam is a better match for the NHt's, as they will sound bright with the Outlaw unit. I think the Arcam will be a little more forgiving on that metal tweeter.
Personally, I would sell the NHT setup on Audiogon and get more sensitive speakers. Then you could buy the Arcam AVR300 at the steal of a price that it is .