I have the martin logan 60xti in my 2 channel listening area. They are incredible and possibly my favorite speakers I have ever owned to date. The sound is very full although I would not call it muscular or forward. It has a natural warmth. The midrange is smooth. The bass I think is its strongest point. In my opinion this is a speaker that you may not need a sub. The bass is tight punchy and deep. I am driving them with the naim uniti atom which is only 40 wpc.