The 801's are very power hungry. You will not get what this speaker has to offer unless it is mated to a high current ss amp. I was running a pair with a Bryston 4B (250w) and the sound was ok, but when I added another 4B and ran them as monoblocks into the 801's did the music really shine. They also need to be on a good stand, in a big enough room to open up and are fussy with placement. Taken all that into account, they are big and bold with a non fatiguing presentation when mated with a tube preamp.
I don't have any experiencer with the Yamaha speaker.
I don't have any experiencer with the Yamaha speaker.