Summary: [Update] I found an article that explains the purpose of the Impedance Selector. Switching over to the 4-ohm setting actually DEGRADED the power, so the sound improvement was all in my mind. I also want to add that I've been considering an upgrade to the Yamaha A-S1000 integrated amp.
Summary: After going through a very frustrating experience with a lot of other Yamaha models, the RX-797 was an answer to my prayer. With a turntable and Bose 901 speakers I needed something with a pre-amp loop/tape monitor (so I can plug in the Bose equalizer) as well as a real "phono" input.
Summary: I bought this unit to replace an aging Yamaha receiver that finally quit. Well, it worked great and sounded great -- for less than 8 months. Now when I turn it on, the display is extremely dim, and it turns itself off after a couple of minutes.
Summary: First let me explain that I will never buy any audio product except Yamaha and here is why: My old system was Yamaha circa 1986. I paid $9600 for it then and just now gave it away at the request of my family.
Summary: Have mine hooked up to B&W 703 speakers. They shake the house! CD direct is awesome and the sound from DVD via my TV is crystal clear. Just the right knobs/controls on the front of the unit, which is nice since the remote for this unit is uughlyyy!
Summary: Recently replaced my darling 1983 NAD 7155 receiver (I loved it) but could not justify the price or reliability issues identified with current NAD receivers. After some research, picked the YAMAHA 797 as a clean, powerful, affordable ($399) replacement.
Summary: I wanted to replace my Klipsch promedia 2.1 speakers I played off my computer. I am a big MOG Music fan and usually only stream music. Local radio and Sirius xm do not come close in sound quality.MOG Music streams at a high bit rate, so I wanted a clean powerful receiver.
Summary: I bought this receiver to power an extensive multi-room household system. It has the power to do that -- actual output at 6 ohms is 120W per channel. It can easily power several rooms at a time.