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The D'Appolito, MTM Configuration

One speaker technology which is I think old but hasn't gotten the praise it deserves is the Joseph D'Appolito configuration.  In short, it uses a tweeter vertically sandwiched between two midwoofers.  Using two actual midranges is a variation on the theme. 

What got me thinking of this was the $220,000 speaker pair that appeared on Stereophile's coverage of the Florida Audio Expo, which made me think, fondly, of the original, 1980's era  Focal Utopia where I first heard this arrangement. 

It's a very good arrangement for those who love detail and want a speaker that's relatively easy to live with.

How about you? Have a pair of D'Appolito-like speakers ever won you over?

erik_squires

Showing 1 response by jaytor

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jaytor
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I owned Duntech Sovereign speakers in the late 80's/early 90's these used this approach for all the drivers, but John Dunlavy used shadow first order crossovers. The big disadvantage of this design is that the tweeters had far less per handling capacity than the rest of the system and we're very easy to blow if you played them to loud. 

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