hey Boed,
there's a dire warning in the x-10 v3 manual about this issue...i think the correct way to hook it up
is to turn the buffer on first and let the circuits normalize a minute or 2, then turn on your amp, then sources.
My buddy's girl blew a fuse when he wasn't home...she flipped the breaker which turned the amps & x-10 on at the same time...a few puffs of smoke later and 2 Adcom 555 in mono were ruined.
just a week or so ago a guy posted a similar problem here, but he destroyed speakers.
Fun toy, you gotta be careful though. No idea if other buffers have the same issue.
The TVC does add a LOT of body and weight and dynamics and slam and all that...its really the sound & tone i'd been looking for. For similar $ as a tube buffer, the TVC is quite a steal.
matt