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In the Forum: Horn-Loaded Speakers
In the Thread: Omni-directional 'horny' speaker from RAAL
Post Subject: The conventional pair of front firing loudspeakers can not?Posted by Romy the Cat on: 10/14/2008

Thanks, for posting the link. I never heard about this company.

Here are a few interesting quotes from the Morison Audio site:

“A conventional pair of front firing loudspeakers cannot recreate a natural stereo illusion. It always sounds like a sophisticated public address system. I suppose the continued success of front firing units is due to the proliferation of PA systems wherever you go. A "live" jazz event isn't really live when everything is squeezed through a PA system. Hell, even the opera is now mic'd since most of the citizens expect things to be "loud".

OK, let presume that the initial sentence is right and front firing loudspeakers are limited. Then whatever come after it (about the PA systems) is completely irrelevant to the alleged front firing limitation.   The fact that “everything sounds too squeezed” is not then inherited shortcoming of front-firing loudspeakers but rather a sign of very bad loudspeakers.

“Rule # 4 The dirty little secret of the recreating stereo illusion with a loudspeaker is: 360 degree dispersion at all frequencies into a solid angle. When a two way sytem is used the woofer and the tweeter must be snuggled as close together as possible. Both units must exhibit 360 degree disperion at all frequencies into a solid angle. To achieve this task the drive units are forced to behave in this fashion. One need only look at the detail of an omnidirectional microphone to see how it "receives" it's signal. A grid is fixed over the capsule forcing it to receive from all directions. At the other end of the chain we simply turn the thinking inside out and "broadcast" the signal by forcing it to disperse into a solid angle. Many speakers will have drive units on different faces of the box firing six ways to sunday. This won't work. It may sound a bit more "spacious" but since the drive units are too far apart and there is not a solid dispersion pattern at all frequencies due to lobe effects, we end up with yet another PA system. A full range single drive unit suffers the same problem. When mounted in a conventional front firing fashion the effects of a discontinuous signal launch of all frequencies will get us back to PA land. A single drive unit firing upwards and then forced to launch its signal into a 360 degree angle at all frequencies will work. The bad news of course, is that a single driver will always trade off frequency extremes - this is true no matter how it's mounted. Any talk of the basic "monkey coffin" type of loudspeaker having great imaging is nonsense on stilts.”

Possible, I do not know. What I think is important is talk about the cons and pros of the concept and do not confuse it with the success of failures of a specific implementation. Anyhow, if you feel that Morison Audio is a right implemented “360 degree dispersion at all frequencies into a solid angle” (soothing that actually never happen live) then is any place what the Morison Audio’s results might be experienced?

The caT

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