Quick update on the M3:
After over 3 month and 700 or 800 hours of burn in, macrodynamics have much improved and are now satisfying all the time (plus i added a gauge 10 power cord to feed it today after trying other power cords, which improved things, read bigger is better). It is all i want from an amp. Except small. But it does not get much hotter than 30C.
It organic and smooth, while being neutral and transparent. As i read in a review, it is on the warm side of neutral. It can output harshness if fed with it, as it should. I am experimenting with an ocxo hooked up to my u16 with a badly put together bnc cable, which can make the r7he sound a little harsh at times. The m3 will play it through.
So i recommend the m3 without any reservation. The highs are really exceptional, the mids, splendid, the bass, tight and deep. You get attached to it with time, after the initial impression of having you living room invaded by it. Cheers to Kingwa and his team! Sometimes, bigger is better.
Sounds like a great amp.
This AC Power whitepaper is well worth the read.
http://www.msbtechnology.com/faq/how-to-wire-your-house-for-good-power/
I had my Krell mono blocks set up to run on 240V and there was a big jump in SQ.
After reading this whitepaper, I upgraded my 60' power feeds from 10AWG to 6AWG and everything got better - I would scale it at 50% more relaxed and detailed and 20% better imaging.
Depending on the distance to the panel and the AWG, it may be well worth the upgrade. In this case, bigger IS in fact better!
Thanks for the shares on your AGD path.
Rich