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  »  New  Why I do not like La-horns. The tomatoes…..  The stupidity of JMLC profile: not a problem with horns...  Horn-Loaded Speakers Forum     7  47600  05-02-2011
07-06-2013 Post does not mapped to Knowledge Tree
LogicAudio
Posts 6
Joined on 07-06-2013

Post #: 1
Post ID: 19642
Reply to: 19642
JMLC horns profile?
fiogf49gjkf0d
actually I'm from Iran and needless to say we are stock in the middle of nowhere here (sanctions,...) so we weren't able to hear much of the horn speakers, so we started to think we should do it ourselves because we are able to obtain CDs much easier than big horns. now we are building a special Lathe Machine to turn horns, for now I've planned to do the Tractrix but I thought "why not try JMLC?" so I wanted to check if there is public free or commercial information about these horns
btw, we use Linear bearings and a pivot-guide method to scratch the MDF or natural wood. maybe some mold and then go for fiberglass

any help is much appreciated

اینجا کلیک



"Nothing is better than a horn loudspeaker, well... unless two horn loudspeakers!"
Regards,
Arash
07-06-2013 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,495
Joined on 05-28-2004

Post #: 2
Post ID: 19644
Reply to: 19642
Space and JMLC.
fiogf49gjkf0d
Logic, the conversation of JMLC profile vs. tractrix is not a subject of debate of any kind. This is well addressed subject and if you look at my forum then you will find all necessary information. Look for words La-Horn as this is how I call JMLC profile.

To be very beef without repeating myself too much. JMLC profile is non-arguably better in theory and the higher horn’s cut off frequency the more JMLC is better. However, this JMLC advantage manifest itself for a standalone horn. If you begin to pile up horns in Macondo configuration then the JMLC advantage very fast will be overcome by JMLC disadvantages deriving from the fact that JMLC are larger than tractrix for a given frequency and therefore the horn stock will be less grouped together.  

So if you plan to build a Macondo-style sound installation that will be located in one of the grand rooms of Ali Qapu Palace then I would go JMLC. If you are like we all regular mortals are trying to squeeze the horns in relatively definitive space and listen them from 10-15 feet then I would advocate Tratrix.

Rgs, 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 (2 items) Select Pages: 
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Why I do not like La-horns. The tomatoes…..  The stupidity of JMLC profile: not a problem with horns...  Horn-Loaded Speakers Forum     7  47600  05-02-2011
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