Chris,
You stated with respect to Atma-Sphere,
Atmasphere will run much hotter, have much less bass drive, are way more high maintenance.
I have been running 4 MA2-MK III's for almost 2 years now, and I have lost 3 power tubes during this time. This is the lowest tube loss I have ever had when running Audio Research, Air Tight, and Bat, and this is with 4 monoblocks or 80 power tubes in total. I have not heard the Berning, so I can not comment as to how its bass compares to Atma-Sphere's, but I have never heard better bass. I agree that Atma-spere's do produce heat, but my air condition easily keeps this in Check and does not appear to noticeably run more than it normally would when amps are not powered up. Sonically, I can not imagine amps sounding better, more accurate or musical.
Happy listening
You stated with respect to Atma-Sphere,
Atmasphere will run much hotter, have much less bass drive, are way more high maintenance.
I have been running 4 MA2-MK III's for almost 2 years now, and I have lost 3 power tubes during this time. This is the lowest tube loss I have ever had when running Audio Research, Air Tight, and Bat, and this is with 4 monoblocks or 80 power tubes in total. I have not heard the Berning, so I can not comment as to how its bass compares to Atma-Sphere's, but I have never heard better bass. I agree that Atma-spere's do produce heat, but my air condition easily keeps this in Check and does not appear to noticeably run more than it normally would when amps are not powered up. Sonically, I can not imagine amps sounding better, more accurate or musical.
Happy listening