Since my Marantz DV 6200, the then purchase price 849, after 10 years of an amplifier broke and the repair would have cost 250, I decided to buy a new AV receiver. After weeks of research and buy and read of several scientific journals, I am on the Yamaha RX-V 771 gekommen.Er had overwhelming test results and is in the upper class, the measure of all things. Now that I have tested the unit two weeks, I can confirm the reviews. The device is quick to connect the HDMI cable and speaker cable. In the Marantz I had to 10 cable (Except the speaker cables), while Yamaha just two. The automatic calibration of speaker is exemplary and is erledigt.Es quickly was measured at four points. The whole procedure described took 22 minutes for me. Now for the most important, the sound. I thought not to believe my ears, what a great sound of this AV receiver. Whether in stereo, the Yamaha is the purest HiFi-machine, or DVD in surround mode, and even the TV sound is great! So a crystal-clear sound in every function I did not expect. Opposite the Marantz DV 6200 which was considerably more expensive, I had the feeling that opens a wide stage. Suddenly I missed nothing more of the details, every little thing can be heard. As I said I had not heard anything. I have now heard some CDs and DVDs and can not at all get enough of the great soundscape. I hear sounds, noises and voices that were previously hidden from me. So, for that price, there are better z.Zt.keinen AV receiver, because I have all the sample belongs! A very clear buy recommendation!