Opinion on Yamaha Amps

The Yamaha MX-1 has been my favorite budget(<$1k) power amp for over a decade. The A-S2000 is an excellent value int. amp, the current 2100/3000 might be better but I have not heard either and there much more costly. FWIW the A-S2000 works very well with the ATC-scm11. The KEF or a ZU monitor will NOT be able to tell you what's on a recording like an ATC loudspeaker!

The Yamaha MX-1 was my first separate amp. It was a great piece & I still regret selling it.  If you can find a nice clean one it would be a good day indeed.  -John

From all I have heard and read, the Yamaha A-S801 is a solid piece of gear. Plenty of thump and built well.  I have the A-S1000 driving a pair of Klipsch RB-75 bookshelf speakers and could not be more pleased with the combination.  

The built-in DAC on the 801 is a nice touch as well as the variable loudness control.  I love the retro look also.

Bill

One thing to note, the 801 has an impedance switch on the back, to protect it from lower impedance loads. Something like this is generally thought of as cost saving and a compromise.

Any integrated amp worth its weight will be able to drive down to 4 or even momentary 3 ohm loads without issue. None of the Nad integrated amps need or have such a switch, even their entry level C316BEE is rated for 4 ohm loads.

It might be worth considering the Nad C356BEE for this reason, and the fact that all Nad amps have the superior toriodal transformers, not the laminated core design that Yamaha employs in the 801.  Shop Spearitsound as they occasionally have demo models on sale.