When I first heard (and saw) about the Onkyo revival and this particular M80/P80 combo I was really excited, immediately contemplating the idea to get it a.s.a.p. My first doubt occurred when I saw the back panel picture of the preamp. Only 2 analog input ? Why ? Quality signal relays are so cheap these days (the excellent Panasonic TQ2 series relays are about 2 euros/piece even at street prices) and some additional quality RCA input connectors are also dirty cheap. I thought is just me with my outdated thinking; Afterall we are living in a digital audio world and the choice for such a ridiculous small number of analog inputs is a design wise decision of the skilled and seasoned designers behind this product. Then, the real shock came when I saw the "guts" inside these boxes (there are several videos on YT). This is not a price optimized design is a dirty cheap approach. I am in electronic building hobby for more then 40 years with dozens of fairly complicated projects successfully accomplished, I just know something about audio design and electronic component choices. But, to use only 2 pcs. of 10000uF in the main power supply (one each for positive/negative rails) in a more then 2x100w rated class AB amplifier is simply a bad decision driven, I presume, only by the aggressive cost cutting decision. Then the small heatsink (too small for such a claimed output power), the quality of the PCBs, the wiring (look at the speaker output terminal connections), the cheap quality of the mains transformer and other flaws which I don't bother to mention. All these for a piece of equipment positioned in the upper segment of the market with an asking price of near 3000 Euros/combo. I read in the previous comments that some of the early adopters noticed hum and buzz attributed to the top cover which was solved by putting a weight on the top. This is not a surprise, the steel sheet is too thin (economy reasons) and also that fancy pattern (but otherwise totally wrong from the functional perspective) of the venting holes are the main culprits. Also it tells us something about the quality of the mains transformer and the parasitic escaping magnetic flux due to a cheap implemented iron core laminations. Well, I admit that those VU-Meters are nice and will bring a solid visual satisfaction and also the overall external design is appealing but this is only what you get for the money.
Overall, a big deception for me.