Are there any difference by using the k1000 output or high gain output driving the hd800?
Although i just have a new wa5-le, but i am quite interested in this question.
The wa5-le sounds good on the hd800 after changing tubes, fuse and cabes.. maybe will get a max wa5 next year..
HD800 is better driven from the high gain SE socket - I plug it into the K1000 output to experiment, but it probably isn't a good idea.
The K1000 socket is ideal for the HE6. From what I understand, the only differences between the WA5 and WA5LE are the K1000 socket and the speaker outs. If you don't want to drive speakers, or a HE6, there is probably no need to go from the WA5LE to the WA5. Others on the forum will know more about this than I do.