I currently have the a3.2 integrated amp and cd player. They are great, I love them to death!! I think the a3.2 is the better amp because it has more detailed bass, mids and hights, because of the nu vista circuits. It also has more power. I couldn`t describe the sound as warm, but more neutral and laidback. I think the a3.2 is a well ballanced, sonically, dynamic and detailed amp. Especially for the money. Just listen to both of them yourself and decide!