Rerurn to Romy the Cat's Site
In the Forum: Horn-Loaded Speakers
In the Thread: How to USE “Resonating Oops” in loudspeakers
Post Subject: Oops - Layered SoundPosted by stevie7V on: 11/24/2007
 guy sergeant wrote: |
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I have some experience with the 'Layered Sound' concept and although I haven't read all of this thread, I think that it does perhaps have some 'Oops' about it.
Basically, you run an NXT type panel speaker in parallel with your moving coil speaker. The moving coil speaker can then be designed 'by the conventional book' for minimum panel resonances and the NXT adds the equivalent of 'panel vibration'. The advantage is that you can run the NXT via a separate amplifier and control its level relative to the main speakers. If you get it right this combination adds an air of realism, particularly with regard to the ambience of the system - a bit like the old Haffler setup. Placement of the NXT speakers is not critical and the frequency response only needs to be from about 200Hz to about 8kHz. When I use it I set the volume of the NXTs to around -6dB relative to my main speakers. At this level the easiest way for me to tell whether it's on or not is for me to listen to the rear of the room, as that is where I detect the biggest effect. Subtle is the key to success here.
Please note that the Layered Sound system is patented and you can't do anything commercial with it without licence from the Layered Sound guys (that's how they make their money, although I believe that most of their work has been with setting up PA systems for concert halls - I may be wrong).
I hope that this helps and perhaps inspires some experimentation.Rerurn to Romy the Cat's Site