SET on JBL Everests - Mouse breeding an elephant?

I have to apologize for posting such a confusing question.  Let me start over.  I am using one bridged 275 to power the left speaker and a second bridged 275 to power the other speaker.  No biamping.  I’m using the internal crossovers.  A buddy has built an Elekit TU 8600s SET for his Valencias and the result is VERY impressive.  I have been wondering how it would sound on my Everests.  I know it could never handle four 15”s when playing music with any significant bass signal, but what about music that has an almost exclusively mid/tweeter signal - jazz ensembles, classical or jazz piano, acoustic guitar and such?  Perhaps the Elekit could work then?
 I’d have to put some sort of switching system into the mix to go from one amplification system (the 2 bridged 275s) to the other amplification system (the SET), depending on the type of music.  Complicated, yes, but man o man, the thing is really magic on my friend’s Valencias.  And my Everests are almost as efficient.  
Probably too much trouble to fool with.  I’m already tired of it, just trying to explain what I was thinking….

“Still better off with SS for bass management.“


I got rid of my old 7270 but I have a 452 that I could use for the bottoms, a single 275 for the tops, then put the other 275s on the block.  I have an idle 4350 that got displaced by the Everests, and I had managed to get it dialed in when I first set it up.  Hopefully, I can manage to do it again.  Anyone have experience with biamping the 67000?

I did try it when I first set them up, using 275 on top and Mac MC7270 on the bottom.  For some reason, they sounded horrible.  So bad that I had to verify every setting.  Swapped in a Luxman M6000 amp, no joy, so I gave up and went back to using the internals.  I think I need to retry that approach and invest more time in getting the biamping right.  Heckuva lot easier than the nutty idea I had come up with. 

ok, thanks!  I’m going to follow the overall plan that you guys have come up with:  single 275 for mids and tweeters, single 452 for woofers.  Active crossover with signal split around 850.  That last thing is probably what I did wrong when I tried biamping when I first bought them - IIRC, I set crossover frequency at about 250 instead of 850.  

I kinda like the idea of 2301s, mostly because of the looks. That’s a pretty hefty outlay, though.  Thanks for the good guidance!

best regards