My Classe CA-400 and Dunlavy V based two channel system, I would say come to 75 sitting in the sweet spot, but Extend that to stereo surround sound mode on Classe SSP-50, CA-400 and Dunlavy II in concert with two channel sitting in NEXT room or back yard on a good recording (e.g. Days of the New's debut CD), closeness to live comes to 90. No kidding. Hate to admit but it is true.