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Please help Two amps to one pair of speaker?

Hi,

I have a tube system for music and solid state for home theater. The problem is that I have to merge two systems in same room and my room can not have two pairs of speaker (small room).
I'm thinking of connecting two amps to one pair of speaker, turn on only one amp at a time and the other amp must be off without removing the speaker cables. Does this way create any problems with only one amp is on?
Thanks for your help!
Tran
worldcup86

Showing 1 response by ghostrider45

ghostrider45
449 posts
 
This has been covered before.

Do not under any circumstances connect both amps to the same speaker without an AB switch. If you do, each amp sees as its load impedance the speaker in parallel with the output stage of the other amp. This may be quite a low value, and could result in a nice fireworks show and possible expensive damage to both amps.
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