Best 9 channels power amp?


New to separates and looking for advice and first hand experience from this community. What power amp would you recommend to power a 5.2.4 system? I would rather keep it to just 1 amp due to space constraints. I have been researching the yamaha mxa5200, monolith 9x, and emotiva xpa gen3. All have plus and minus points. 

Yamaha is well established as a brand and it has a bridge load function so that you can use 2 amp sections to power each of the fronts. It has 11 channels so this would allow it to power 9 speakers with that function on. While rated at 150 wpc, audioholics measured it to run at about 65 wpc with 7 channels driven. 

Monolith is rated at all channels driven with 3x 200 wpc and 6x 100 wpc. I dont know much about their reliability and sound. There's much less reviews on the internet about them than the other 2. 

Emotiva has a 9 channel which has 5x 300wpc and 4x 65wpc. I dont know how these measure as they state it is 2 channels driven rather than all channels driven. I also read the sound is muscular rather than refined. I also read some bugs with their amps. 

If anyone has any suggestions I would appreciate it. 
jwl244

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