Switching a single set of speakers between two amps

I search all of the posts first, and found one discussion about this topic, 4 years ago, but it wasn't exactly the same as my situation, so I am going to bring it up to see if anyone has experience with this.

Right now, I am using my AV system in conjunction with my analog system - I have a Garrard 301/Jelco 750L/Zu Audio 103, feeding a Tavish Adagio, which then rolls into an NAD T187/Classe CA5300, connected to KEF speakers (stereo pair are the LS50s, which might be the biggest bargain in audio -I used to run Maggies - the 3.7i's, which are great speakers but turn out to be wrong for my room - contact me if you want to buy them! - I initially purchased them for a different environment, where they worked great, but they are too large for the room I am in now).

What I want to do - continue to use the NAD/Classe system for A/V and also for surround SACD, but install an integrated tube amp - maybe the Line Magnetics 518- for use with vinyl and tape.  I located one well-reviewed switch - the Beresford TC-7220 - and I wanted to see if anyone has actual experience running two different amps with the same speakers, especially when one of them is a tubed amp.