other way around, bugle boy HD 800 and orange globe T1. and those are supposably not as good as the amperex PQ whites or the rarer pinched waist 6922, or even the 7308 varieties..... and then theres the siemens tubes i have yet to try, i feel those will be real winners with HD 800.
im gonna give a few more 6SN7 a try on WA22, but i feel that the WA22 is next on the chopping block. its like the WA6-SE, WA22, and WA2 neither is really "Better" than the others, just preference, and seems like neither is perfect either.
mainly heres what i think so far:
the WA6-SE is most SS sounding, can drive anything, but can become grainy and not as good with beyer t1. full and dynamic, great clarity, but also tube rolling can be a pain at times, and tonality is kinda lacking, not euphonic just warm with tube rolling.
the WA2 is close to perfect for me, but i don't like the rectifier choice, and not good with low impedance, so only limited mostly to the 300/600 ohm headphones from beyerdynamic and sennheiser. requires a ton of money tube rolling to sound best.
the WA22 seems to be warm and more colored than WA2, but not as silky smooth, it has a slight thinness to it, despite the warm and forward mids, too middy for me, and bass not as good as other 2 woos, though can drive almost anything, has to be balanced source though, can't use single-ended, and looks like tube rolling on this is even more expensive than WA2. soundstage and imaging greatest out of all 3.