How does the Lyr work for them? I have a large collection of 6DJ8 tubes that I enjoy using with the Woo WA2, but I'm just not feeling the love with the LCD's. I have found brightening things up with tubes helped with the HD-650's, but the LCD's are just sounding dull all around. Nothing pops out at all, and I'm used to listening to laid-back headphones (they're my preference to begin with... I really hate the newer bright headphones, that's why I upgraded from the 650's to the LCD-3F's). Like I said, I tried Siemens grey CCa's, Telefunken E188CC and CCa's, Philips pinched waist 6922's, etc... these tubes really shine with the 650's, but I find them all to sound rather lackluster with the WA2 and LCD's. The Telefunken's did sound superb, but very neutral. Jazz is great, but rock/acoustic not so much. (The funny thing is the LCD's actually sound rather good with a Telefunken tube straight out of the T1 as well...)
The WA2 pumps out 310mw @ 32ohms. Very under powered for the LCD3 which states it needs 1W @ 32ohms. The WA2 is not even supplying 1/3 of what is needed.
I was looking at the WA2 way back and avoided it for this exact reason. I ended up with the WA22 which produces 1500mw (1.5W) @ 32ohms.
Boy does it make the LCD3's sing. I also have the Oppo HA-1 SS amp. The WA22 kills it.