I own the LCD-2 and have found it very easy to drive. I haven't tried it with the Woo Audio amps but I use it with an Accuphase integrated amp. I've also tried it with Burson, Music Hall, Eddie Current, and even midfi gears such as, Sony and Denon. In each case, there were no issues driving it. Of course, the better the equipment the better the sound quality got, but lack of drive was never an issue.
Info. for anyone interested in the Audeze LCD-3's.
It seems like the older batches of Audeze LCD-3 Freq. charts drop off at .8k versus a 1.5k drop off. Which should be a loss of upper energy 3db or more. A Freq. sheet is provided with each purchase. Many consider the older builds to be veiled. (Although a slight shift can change the Freq curve but the correlation seems to exist with the veiled units.)
Plus, they use a few different materials in the new builds. All the nice variation of wood color, are luck, not a request. The newer Fr. charts start at 20 versus 10.
From Woo Headphone amps: (My choice of amp.)
The WA-22 will provide better imaging and stereo sound, however the power output is not as strong as the WA6-SE. If you like to listen to your music really loud, the WA-22 is not for you. If you want an amp with great sound and more than enough power to drive the headphones go with the WA6-SE. This is actually the amp they use for "reference" in their test area. Upgraded rectifier and tubes are highly recommended!
All good information to follow up on and research, if interested in the LCD-3 cans.