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SET on JBL Everests - Mouse breeding an elephant?

I have a set of DD67000s and I’ve been running them on a pair of bridged Mac 275 amps.  I’ve been quite happy with the results even though most advise a lot more juice.  Lately, I’ve been hearing interesting things about the Elekit TU 8600s and I’m curious how that would work on the Everests.  Most of my listening is to acoustic guitar, jazz ensembles, piano (classical and bill evans jazz), and intimate vocals at fairly low volume with the remainder being orchestral/symphonic, early rock, big band, Texas swing at higher volumes.  Room is 22 X 40 with vaulted ceiling.  I’m thinking of adding the SET for the smaller scale stuff and leaving the 275s as they are for the rest.  Thoughts?
doodle6
ditusa's avatar
ditusa
1,912 posts
 
   ''Always bi-amp at least.''
I agree, my JBL 4435 monitors sound better active then passive.
fiesta75
1,378 posts
 
The DD67000's are bi-AMP capable using the internal crossovers! You could use the SET's on the high end and bridged Mac's on the low end. Or you could un-bridge the Mac's and use one amp to power the right and the other for the left speaker. Believe me when I say bi-amping would sound much better than the bridge Mac configuration. Very easy to try.
doodle6 OP
72 posts
 
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. 
oldhvymec
5,101 posts
 
You would be better off unbridging the amps and using one for bass and one for mids and highs.. That would sound better than bridged MC275s believe me.. 50 years with Macs, you don't bridge any of the 225, 240, or 275s without some serious reworks for SQ.. They just don't cut it for me.. or anyone I know.. Loud yes quality no.. Either way vertical or horizontal, The horizontal is better.  The channel load is more equal.

Still better off with SS for bass management.. JBLs use to be wired different to.. because of the JBL driver phase shift.. I like um... one of my all time favorites.. JBLs, Especially the Everest series.

Regards
doodle6 OP
72 posts
 
“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?
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