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In the Forum: Horn-Loaded Speakers
In the Thread: Munich High End 2010
Post Subject: An effect of a large screen TV between the speakers.Posted by Romy the Cat on: 5/18/2010
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 Joe Roberts wrote:
The L-9 enclosures were wood on all sides. Sealed box. No ambiguity here.

Wings were common on theater speakers for mid-bass reinforcement. Plainly audible improvement on these and, for example, A-7/A-5 VOTs. It is equivalent to in-wall mounting down to a freq determined by the width of the extensions.

There is no interference with MF and HF from the side baffles because those frequencies come out of the 60 degree horn on top of the cab, obviously.
 Hm, the sealed boxes – I am surprised – I would never guess. The wings are for the mid-bass reinforcement? That is a bold waste of speaker’s surface for a small result.  BTW, I presume that 60 degree horn is only if you stay literally under the horn but from a reasonably listing distance the HF channel runs at much much lower angle. Unfortunately all, absolutely all with no exception speakers with open baffle (including with the “wings form mid-bass reinforcement”) suffer from the fact that the large vertical surfaces of their baffle flatten out the upper frequency. The upper frequency starts to be fluffy and reminds a fur of wet animal. To “cure” it people inject more amplitude in HF, overloading the initially sub-sized horns. This is what many Morns call “vintage sound”. Ironical to demonstrate the problem is very simple – juts to toss a hairy blanket/carpet atop of large baffle. Of course then the blanket will cover the WE logo and then many audio “writers” will have no subjects to write….
 
The Cat

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