A couple of things-- I did own the Sophia--I had the 845 monos. It had wonderful mids but was lacking at the bottom--(within my system,at that time) Cary has more/better resale. It will take the right speakers for either. Buy the highest version U can afford. In most things SET, the bigger the transformers,the better.i.e.--Don't buy those 5 pounders.