Surprise! the Raven is A DUAL WOOFER speaker - always has been! You can thank Talon for their TERRIBLY inaccurate website that does not clearly state that. I have complained about this mis-information to Mike Farnsworth 10 times, but he is just too busy to get it fixed.
It uses an isobaric (back-to-back) design, where the second driver is aimed into the cabinet in a push-pull configuration. Like this: ><
The biggest difference between Khorus & Raven is the 3-way crossover and corresponding extra mid driver. This may allow the bass drivers in the Khorus to extend a little deeper, cause they aren't having to deal with frequencies quite as far up into the mids.
That's the good part about the Khorus, but 3-way designs don't tend to have as good of a reputation for linearity as 2-ways, because the extra crossover point happens in a frequency range where some people can clearly hear when the tweeter stops and the mid starts. You may or may not be able to detect it or even care, but some professional reviewers I have read articles by can't stand 3-ways because of this, so YMMV...
As for the Bel Canto eVo's - well, you just hit on an important synergy situation. These amps are well-documented natural partners with the early (warmer) Talon models. Check out the StereoTimes.com reviews about the eVo's - they were all written using early-model Khorus'es.
I JUST bought another round of amps to try with my Raven C's, and the eVo Gen 2's were seriously on my short list. But, Stewart at Sanctuary of Sound (Current Talon dealer and ex-Bel Canto dealer) indicated that my C's would probably not work best with the eVo's for the exact reasons I described in my earlier post. Instead, I went with Electocompaniet AW220 monoblocks, and -so far- feel that they are a terrific match. I will be doing some critical listening this weekend (if Hurricane Ivan doesn't mess up my power!), so we'll see...
Hope that helps...
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