I have an offer of Denon 3805 AVR for 25K. This is 5-year-old and made in USA as claimed by the owner. Is this worth to buy at this price? The total sound output 770 W ( 160W X2) is what impressed me. I own wharfedale diamond 9.5 and think this AVR would do justice to the sound area. Thanks in advance for expert advice and alternate options at this price level.