I USED THIS IN MY HOME THEATER SETUP WITH GREAT SATISFACTION. I AM SELLING IT FOR I HAVE TO SELL MY HOUSE AND NO WAY I CAN MAKE A SETUP OF THIS TYPE IN A SMALL CONDOMINIUM UNIT. 
 DENON's original dual super non-feedback amplifier is used for the circuit method, and the essence of amplifier technology such as complete DC configuration and non-switching method is put into it.

The dual super no-feedback circuit is designed to eliminate static distortion and inherent noise caused by nonlinear characteristics of amplification elements such as power transistors.
The structure consists of three servo amplifiers : a distortion servo circuit in which the N-channel and P-channel transistors in the power stage cancel each other's distortion, and a distortion servo circuit in which the total distortion appearing in the output stage of the speaker is eliminated. The main signal is transmitted to the speaker terminal without feedback, and because there is no NFB circuit, it is not affected by the back electromotive force from the speaker, and there is no increase in distortion when the speaker is connected.