I had almost 1.5 years The RX-V 475. The I was completely satisfied and he made no difficulties. But when I've bought more speakers than the front, center and surround, he felt something was overwhelmed. So I needed a more powerful receiver. After some comparisons and reflection of my own needs, which will have the new, I decided initially for another manufacturer: Onkyo. This is because even in an unbeatable price. Onkyo is certainly also a manufacturer that builds high-quality hi-fi components. So I have the TX-NR 737 ordered me, because he has the equipment that I have wished for. After I tested it extensively about 3 weeks, I still was not as happy as I was with my Yamahageräten previously. It provides good sound, is sufficiently stable levels (you have to say that I like in our house, according to music listening and movies look) and the equipment leaves nothing to be desired. THX, Dolby Atmos ... But still, I was of the sound simply is not 100% done. The bass just were not so precise and fully adjustable (crossover point .. etc.) and also in the entire sound simply lacked the spine-tingling effect. So again held intensive after Yamahakomponenten out and lo and behold: Yamaha but has a receiver in response to the 737 for a great price, namely the reviewed here. So you do not necessarily resort to Aventage series of Yamaha, which is also a bit more expensive. It has almost the same features as integr. WLAN, etc., similar power and looks even valent out, with its aluminum front than the Onkyo. Only on THX and DAtmos have to do without, but I can live in any case. So let go back 737 and 777 ordered me. After setting up what has worked flawlessly, he was back: the spine-tingling effect and the stunning sound !!! He is more powerful by the performance at worlds, as my old Yamahareceiver and has the equipment that I need. So I can highly recommend this receiver and would buy it again at any time !!!!!