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In Reply to: RE: miss the Telarc Organ Symphony posted by Satie on January 21, 2017 at 12:03:53
Still scratching my head. Both the Neo-8's and tweeters can get by with a smaller amp, which means the A-21 really makes sense for the woofers. But then, I want to try separating the woofers, so need another reasonably-sized amp to play with (although I can just wire them together for initial experiments and keep the woofer and mid-woofers equidistant). The only reason for the second woofer amp would be to adjust timing -- I'm not sure a crossover would be a good idea since the panels aren't quite tuned as LF/HF, there's a lower bass segment in the midbass panel.
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If you are dropping the idea of crossing over between the bass and midbass panels because of their complementary tuning to perform together as a single driver then you really don't need another high power amp. Your room is small enough so that it can be fully loaded with the power on hand via the A21 and there is little to be gained by powering the bass panels separately. .
In which case you don't need a high power amp but a good quality 4 channels of high bias class A/AB amps rated around the 50-100W range at 8 ohms.
Damn, could have sworn I replied to this when I saw it a few days ago.
OK, so my senility notwithstanding, the reason I need to biamp the midbass and bass is that they probably won't be equidistant.
Of course I could use a 100 watt amp to experiment with and then get a bigger one for the second bass panel if I do decide to split them. Which will depend on whether the split arrangement sounds better than my current one, which is starting to sound pretty good. I'd been eying the little Pass for the Neos . . . not sure what I'd put on the tweeter (or if it really matters, now that my ears are only good to 12 kHz).
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