@shkong78 I like your approach to audio...buy it, plug it in, listen and see if it floats your boat. Screw all the subsequent hand ringing and anguish over the hows and whys. It’s great if the science behind a device is available to you and comprehensible but I never let it dictate the outcome. And don’t get me wrong, I do like to feel like I have a modicum of understanding of the whys and hows but will not let that override perceived performance
BTW, got a quad of the melz 1578s based on the thread you started on 6SN7s. At $500 it was a reach. Think I got ’em from your listed seller. Good in my atma-sphere/avantgarde based system but not better than some of my vintage 6SN7s. But I do not regret the purchase.