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04-15-2008 Post mapped to one branch of Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,543
Joined on 05-28-2004

Post #: 1
Post ID: 7213
Reply to: 7213
Denouncing of idea of Bass Horns.

I know, I know, I know…

Any person who in one way or other practices horn-loading loudspeakers has a wet dream about bass horns.  Here and there people built them. Here and there you can hear the assuring and overconfident statements like: “there is nothing like bass from the bass horn”.  Being a devotee of horn-lording direction I should enthusiastically spout the bass horns ambitions but I do not. In really I do not practice horns but rather I try to practice better sound. So with respect to better sound I admit the idea not juts horns but properly sounding horns. Therefore I am not supporting the hype about bass horns as with all best intentions of people who do it, the bass horn never sound correct.

In any horn the diameter of throat and the rapidness of the horn expansion determine the rate of horn equalization. If you shot for 6-9dB equalization then you are with small throat and slow opening rate. This way the entrance of the horn has a lot of near parallel surfaces that act as resonance chambers.  Did you even try to drive a tone across this “pipe”, I would not even mention an impulse or anything like that?

Anyhow, the point that I am trying to make is that there is a very reasonable and very sensible balance between the throat diameter,  capacity of  radiating surface, horn opening rate and the targeting frequency. Make larger then necessarily throat diameter and your horn will at  lover frequencies to act as a direct radiator (98%n of all “bass” horns out there). Make smaller then necessarily tghe throat diameter and your horn will sound like any other sewer pipe with articulation  and tone of a person singeing while swallowing 543 hot-dogs. It is possible by mitigating between throat, profile, driver and the mouths rate to found a perfect equilibrium. I feel that if everything else is done right then the minimum frequency where horn loading still makes sense is around 50Hz -60Hz. With loner frequency the problems avalanche and the alternative methods of bass reproduction become more effective and successful.

Rgs, Romy The caT


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
Page 1 of 1 (1 items) Select Pages: 
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  More about the EdgarHorn Bass..  More about the EdgarHorn Bass...  Horn-Loaded Speakers Forum     0  22269  01-13-2005
  »  New  Problems with horns: upper bass ..  Must it be about loading?...  Horn-Loaded Speakers Forum     109  862441  03-25-2005
  »  New  Why horn-loaded loudspeakers are bad...  Re: the converse can also be true...  Horn-Loaded Speakers Forum     9  54205  05-30-2005
  »  New  Chinese upperbass horn...  Some sensibility about bass reproduction...  Horn-Loaded Speakers Forum     35  263992  08-08-2005
  »  New  Magico: Robert Harley’s upperbass mouth...  Surprisingly interesting write up by Federated Mike abo...  Horn-Loaded Speakers Forum     35  224161  02-19-2006
  »  New  45Hz Bass Horn..  Can We Ever be Saved From Ourselves?...  Horn-Loaded Speakers Forum     23  237313  09-19-2006
  »  New  A right midbass solution for Altec 515G...  Its even possible to make my midbass......  Horn-Loaded Speakers Forum     21  132981  05-06-2007
  »  New  The state of High-Efficiency Loudspeakers...  Tom Danley’s brilliant law...  Horn-Loaded Speakers Forum     6  64530  02-25-2009
  »  New  The tapped horns: cons, pros and Sound..  Sorry, no images any more....  Horn-Loaded Speakers Forum     56  487438  04-23-2009
  »  New  Midbass Horns and Real Estate...  Just a youtube video......  Horn-Loaded Speakers Forum     247  1514219  07-26-2009
  »  New  About bass horns by Johan Dreyer..  There are lowest bass horns and there are not lowest b...  Horn-Loaded Speakers Forum     5  66514  02-11-2008
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