I'm fiddling about[1] trying to use 1 pair of speakers, with the option
to switch between power amps - one SS, one valve. This:

http://www.maplin.co.uk/Module.aspx?...299&doy=search

would seem to do the job, but I'm unclear on a couple of things:

1. What would be the consequence of operating the valve amp when the
switch (is there a switch?!) is connected to the SS amp? I'm going to
guess 'disaster' - if that's the case is there an elegant way around
this possible mishap?

(I assume SS amps don't mind being left on without speakers btw)

2. Does anyone know what the proection circuit referred to might be, and
if it would 'pollute' the sound?

TIA

Rob

[1] tentative foray into the wire maze that is home cinema - just got a
couple of cheap AV amps, and currently trying the pick (a Yamaha DSP
595A) of the bunch. Actually sounds very good in normal stereo until
it's switched up - hence this post. I'd use the Yamaha amp for 'casual'
listening.