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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

Showing 5 responses by fiesta75

fiesta75
1,378 posts
 
+1 phusis - Always bi-amp at least. They will sound so much better even at low volumes and with all types of music.
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.
fiesta75
1,378 posts
 
I totally agree with jasonbourne52 on the active crossover method. Jasonbourne52 - The second woofer in the 67000 operates up to 850 Hz., so crossover for bi-amping should be around there. I was under the impression that OP didn't want to hassle with it, so I didn't suggest that. Again I agree that limiting the frequency range to the input of the amplifiers is the most ideal (that's what I'm doing), but even if you don't do that, there will be a major improvement. The high frequency amps will not need to deliver the current in the output stage, same for the low frequency amps not needing to supply the current. The saving in output current is a significant overall load savings. 
fiesta75
1,378 posts
 
A couple 9V batteries in crossover? I just read the D67000 manual and it says the internal crossover has a couple 9V batteries to keep the crossover energized. Has anyone heard of this approach before and does any other speaker manufacturer do this?
fiesta75
1,378 posts
 
Thanks for the info, much appreciated. I just recently started upgrading and had never heard of this approach.
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