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2 amplifiers, 1 pair of speakers

Any ideas on the best way to achieve this? My friend has a sony multi-channel amp for HT and a Cary SLI-80 for 2 channel listening. The speaker wires are currently plugged into the Cary. For movies, the Sony runs the surrounds and uses the pre-amp out to the Cary for the main speakers. The sony is off for 2 channel.

He would like to preserve the tubes for 2 channel only but needs a separate amplifier A/B type switch. Online searches have lots of speaker switches but we can't find any quality amplifier switches. One that accepts the spade terminations of quality speaker cables not the spring-loaded type for lamp cord.

Any ideas?

Thanks
stuartbranson

Showing 1 response by kr4

kr4's avatar
kr4
3,704 posts
 
Do not connect both amps to the speakers at the same time, even if only one is on at a time. First, even when off, the amp will load the other. Second, can you really be certain you will NEVER make the mistake of powering both?

Options:
1) Get a speaker selector switch and wire it backwards as an amp selector.
2) Use the tube amp all the time for the L/R.
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