Be sure to add a pair of 100-150ohm 10W resistor on tube amp side speakers connectors to keep the tube amp permanently loaded and not degrade performance much.
Excellent recommendation by imhififan, I have experience using many of the Niles products and they always function well. Guess I'm somewhat curious as to why you talk about switching speaker cables and ask about a line level (RCA) switcher? Do you have an A/V receiver with preouts? Assuming the 2 channel is preamp and amp, does the preamp have a HT bypass input or just an unused input? Trying to think about an alternate solution. Listing your components would be most helpful.
Tube phonostage into tube pre into tube monoblocks into L/R speakers.
Using same speakers as Frt. L/R in a 5.1 A/V setup.
Wanting to be able to route through a switch so I don't have to reach behind the rack & TV (close quarters) to switch speaker wires between sources when I change from listening to 2ch analog to 5.1ch home theatre. (Plus I know it's bad for the connectors to keep plugging/unplugging all the time).
So I'm using same speakers, but switching between sources, and I don't want to run the A/V receiver through the tube amp. It doesn't have pre-outs anyway. I need a speaker switch box to accept 2 speaker inputs with one output. Most everything I run across is designed to have 1 input and multiple outputs to run different speaker zones from a single source.
I need to run the same pair of speakers from 2 different sources.
Sorry for the lack of clarity in the OP, it was a few cocktails into the evening when I posted it.
"Be sure to add a pair of 100-150ohm 10W resistor on tube amp side speakers connectors to keep the tube amp permanently loaded and not degrade performance much."
Correct me if I am thinking wrong here, but as long as my tube amps are off they don't need a load on their outputs, correct?
So as long as I switch the speakers over to the tube amp side before I power up the amps all should be good?