A / B Switching


Does anyone have any experience with using a switch to go between speaker pairs?
which unit is best?
concerns over running multiple pairs?

Ive got a pair of B&W 802’s and a Dahlquest DQ-10 (full system).  Mac 2105 amp C 28 preamp.  I’d love to keep both speaker sets in the system, but concerns over signal degradation by the switch or burning up my amp.  Thanks 
128x128jj228
Thanks guys for the advice. My listening room isn’t huge.  I may have to end up running the DQ-10’s off a separate system in another, larger, room just based on the space requirements
way overkill - but this thing works and it is quite a truth teller!

https://avahifi.com/products/abx-switch-comparator

iirc niles made a line of regular speaker selectors... ok, not great fidelity but did the job safely
Post removed 
btw,

It isn't good to have spare speakers in a listening space, they passively react to vibrations generated by the active speakers.