Originally Posted by Skylab
Yes, the Leben is VERY heavy - solidly built, and some serious transformers! But it isn't that big really - compact for what it is, as it's a pretty full-featured tube integrated amp.
Since the only difference between the XS and the X was the supplied tubes, mine is somewhere in between those - as I'm using neither the Sovteks nor the NOS Mullards. But the NOS Sylvanias sound great (and I have used these Sylvania...