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In the Forum: Horn-Loaded Speakers
In the Thread: The 5-ways from Germany.
Post Subject: About the Germany Loading.Posted by Romy the Cat on: 2/9/2018
I keep thinking about the type of the loading the guy from Germany used. I am not sure if I agree with Josh that the absence of front chamber if the key for the success that Josh describes. Let analyze it. 
 
The front chamber for LF drivers is not bad at all. The frequency at which the LF drivers operate makes the front chamber very much irrelevant. I case of dual 15” drives the front chamber always in play and throat size become huge and consequentially the horn become huge. In case the Germany Loading (as Josh described above) the Germany front chamber is not there, it is not good or bad, it is not there. There is of cause a very strong resonance opportunity as the location where the horn close in the back but the space behind (the horn tail) is very smalls and the resonance will be too high to care.
Josh claims to his liking of the result from the horn very much and he feels that it is become there is no front chamber. However, horn used a driver that Josh does not know and therefore I do not feel that Josh has a methodological reason to associate a reported good sound from the horn with the lack of front chamber. I feel if a person knows that sound of a driver as a direct radiator on sealed configuration and see the equalization response coming from a horn then a person can claim that a given type of loading was successful. Without knowing all of it is is very difficult to attribute causality for good sound. If sound is bad then it is frequently easy to say why but if sound if good then we need to be very conservative to reverence one or another narrow parameter. 
 
Please, do not feel that I question the Josh judgment about the sound he heard. Furthermore I do find that the Germany Loading is dazzling and very much deserves attention. (I would not use the driver in opposite phase and keep the horn channel free from second driver’s basket). What I do assert is that the good result that Josh report from this horn NOT NECESSARY derive from the fact the horn does not have a classical front chamber.

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