JBL Everest DD67000 vs. Avantgarde Duo Mezzo


Hi:

I'd like opinions of members who have compared or listened to JBL Everest DD67000 and Avantgarde Duo Mezzo (not the new XD version).

I auditioned Avantgarde Uno Nano in 2011 and really liked it. I don't have any exposure to Avantgarde Duo Mezzo yet. Last week I compared JBL Everest DD67000 against Revel Salon 2 and I liked JBLs much more.

Thus, I am going to choose between JBL Everest DD67000 and Avantgarde Duo Mezzo. 

Please help me by expressing frankly!
haroon
gdhal- compared to conventional speakers, yes. My Duos are 104 db and the units with the so-called Omega driver are 106 db if memory serves. This may make the difference between using an SET amp or not. My ML2s, which are 18 watts each, are more than adequate for my Duos. I’m not sure they would drive the Everest effectively though. And the Lamm is not a flea powered SET. I know there are more powerful SET amps, includling Lamm’s own big dog SET, but you are getting into some real money with those. I did hear Magicos driven by the big Kondo SETs at a reviewer’s home -those are rated at 50 watts of output (I think), and they worked pretty well- but that amp is also expensive.
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whart, you raise a good point and I will concede the efficiency issue. What do yo say about the fact Harmon is also recommending a MINIMUM wattage of 100? If that is the case the type of amp may be dictated by that fact alone.
Gdhal, I have thought about the Everest as my next speaker simply because it is less involved than custom made horns with unobtanium drivers. I don’t doubt that the Everest benefits from some power, probably for the bass. I also don’t know enough about the X-over network to know how transparent it is, or whether it benefits from tweaking or bypassing in favor of some external one, but at a discounted price, it is actually not crazy money (at least compared to some of the uber horn systems and antiquarian ones). Hopefully, David Karmeli will weigh in here, b/c he has JBLs among other horns and uses them with SET amps. More later, and thanks for the kind response.
I've been harping over the Uber jbl model line's for year's!, only to be bashed by members of audiogon,  which tells me that they never listened to them,  to me,  the jbl speaker's mentioned on this thread is better than any magico speaker's,  I would know,  of course I  have both!