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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: What is important in Midbass Horn?Posted by Romy the Cat on: 7/22/2010
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I realized that this thread is slowly becoming the most sophisticated web recourse about Midbass Horn available. Trying to keep the thread educational I would like to introduce to my readers one more objective of my project. The subject is super important and could be a full blown own thread on it’s own but I decided to imbed this subject into my midbass project thread as to me, it is a part of my whole vision.
Many audio people unfortunately do not recognize that bass note is not a just “frequency bump” but a full of character LF event. Audio people recognize zillion little characters in MF “bumps” but we for some reasons they do not presume that LF events have the same magnitude of characters. I think we do that because it is very difficult to get LF and as we eventually get some bass then we are so happy that we go alone with it without questioning it too much. However, most of the LF bumps that audio people get sound like the same note and the whole bass has no a lot of discrimination of character.
Topologically any single ported or dipole bass application sound like the same note. The sealed enclosure might have some character but in relatively narrow band pass. I think that reasons for it is that all of them use in one way or another resonance of the system to amplify bass. So, is any way to get bass amplification with use of resonance and to use acoustic system as a strictly linear resistive-load transducer? Yes, here we have a midbass horn. You see, in a properly design long horn the driver resonance does not exist. I mean it exists but it smeared by the that reactance and the whole driver operation see purely resistive load. Add to it a need for no super stiff suspension, no excursion, high compliance to low currents, sensitivity and etc and we have in my view an opportunity for LF notes to sound in max synchronization with the current of signal.
So, to have the max possible magnitude of sounds at LF is one of the objectives of my midbass project. This, combining with the super softness that I am craving from midbass horn will make me very happy.
http://www.GoodSoundClub.com/TreeItem.aspx?PostID=13846
I warn that I do not know where the super softness and super notes discrimination is coming from. My vision is to behave like Cats do. When Cat does not feel good she stop eating and put herself in hunger. The stoppage of the food stop bring the organic poisons that we get via food and the Cat body begin to self-regulate itself, in fact removing the former poisons from the body. (Read the works of Herbert Shelton and Ragnar Berg about intentional starvation/fasting). So, my idea is the similar: give to horn the best driver, best signal and make it absolutely flawlessly designed and the refuse to poison horn with all know to me sources of poisoning. My presumption is that then a midbass channel will be performing with “Original” non-poisoned Sound instead of demonstrating the artifacts of multiple mistakes midbass horns usually demonstrate.
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