I've found that ARC doesn't really maintain the same sound from model to model, so I wouldn't really weigh any opinions on models other than the ones in which you're interested.
That being said, I did have a chance to listen to the 150. It was excellent, but I was listening through Magnepan 3.7's with an LS27 preamp and an Esoteric K01. All I can say is that the 150 is a great amp.
That being said, I did have a chance to listen to the 150. It was excellent, but I was listening through Magnepan 3.7's with an LS27 preamp and an Esoteric K01. All I can say is that the 150 is a great amp.