Dubstep Girl has posted a review of the Woo Audio WA5-LE headphone amplifier ($2750) at Headphone.Guru. His conclusions:

“The sound signature offered increased dynamics while maintaining the same liquid velvety 300B presentation as before. The WA5-LE continues to provide top-level endgame sound at a reasonably and affordable price and is now the better buy if you do not plan on listening to speakers.”

You can read the full review here.