I have a WA6 with some excellent tubes in it and I don't find it to be an amp with a lot of gain. I am interested in the DT880s, especially the 600 ohm version, but I am afraid the amp won't drive them well. Do you get enough volume and quality bass with the Woo/880 pairing?
i had Woo6 intended for the DT880 600 ohm. Smooth...In fact too tamed. Zombie_X is right. Either the Woo3 or the bottlehead crack would drive like an american muscle car. I am using the crack and it provides alot of power with reserve to push it.