Axiom Home Page Forums General Discussion Home Theater MA Silver 8 and M60 in home demo.

Sorry, was just having fun with that extra "b" in lobing

Horizontal layouts don't work for center speakers either, unless the drivers are arranged symmetrically (eg. the WTW array, named D'Appolito after someone I have never heard of). In a symmetrical layout the sound combines to give the same effect as one speaker in the middle, so to the ear it seems as if all the drivers are in the same spot, ie same as if they were aligned vertically.

The only problem you still have is lobing, which doesn't go away even with a symmetrical layout.

I'm guessing it was someone named D'Appolito.

D'oh !!

That's why I keep coming back here. Where else can I learn so much so quickly ?

OK, a slightly different Google search got me past the 1,135,205 different center speakers on the Internet and found a picture of Dr. Joseph D'Appolito :



http://www.visaton-bausaetze.de/hifi/index_en.htm?/hifi/referenz_en.htm

oh!! You were making fun of my spelling!!

John, for shame! Dr. Joe D'Appolito .

Don't Rockets have a bookshelf speaker with such a configuration? I believe that is the speaker with which I was confusing your Ascends.

Yeah...they do.

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Horizontal layouts don't work for center speakers either, unless the drivers are arranged symmetrically (eg. the WTW array,

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Umm, a bit of a stretch Bridgman as it does not explain the VP150.
Ian has done so here and here .
Lobing is not always a big consequence as some believe and in regards to centre speakers, those who say it is a huge problem typically state this after they have heard it from sitting so far off axis that it makes you wonder about what they are expecting for performance from a system. Complete perfect sound dispersion 360 degrees behind and in front of each speaker? I sometimes wonder.

Not sure I understand. The VP150 *is* symmetrical -- TWWWT is the same as (carefully typing it in backwards) TWWWT

I read the first part of your post in a different way, but the last sentence i think was the one i should have quoted:

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The only problem you still have is lobing, which doesn't go away even with a symmetrical layout.

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According to Ian, the VP150 doesn't have the lobing axis.