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When speakers duplicate drivers

What are the effects of duplicating drivers? I'm not talking about the so-called "half" driver where one does, say, both bass and midrange and the other does only bass, I'm talking about straight duplication.

What is the effect on sound? From a technical standpoint, what happens to the incoming signal when it gets split over duplicate drivers?
128x128jimspov
avanti1960
1,452 posts
 
Done correctly it can work quite well for more power handling. SPL and dynamics- especially bass output.  A good example would be two woofers handing off to a midrange driver at a low enough frequency (e.g. 400Hz) where distortion and phase issues are not audible.  A 2.5 way can accomplish the same thing.  
martykl
3,578 posts
 
Google "D'Appolito configuration" and you'll get one argument for this approach.
ebm
9,311 posts
 
My speaker have this and sound WONDERFUL!!!!!!
ricred1
1,996 posts
 
I have Monitor Audio PL-500's and they are the best speakers that I've ever owned.
willland's avatar
willland
846 posts
 
Three 6.5 inch drivers handing off(1700Hz) to a 5.75 inch tractrix horn with a 1.25 inch compression titanium driver.  Very smooth transition with no cancellation or phase issues that are noticeable.

Bill
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