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I’ve been harassing my horn-maker for quite a while with an idea to go for straight, no-cheating 45-50Hx horn. We discussed it countless times and sometime probably we would go for this, and particularly if I figure out how to resolve the delays problems. I’m not taking about the ultra-short phony Edgar-Altec horns with cheating curves that run at half of their resonant frequency as the direct radiators. Those horns might please the specific hoodlums form mid-west and those horns were designed specific for the  “taste” of those Morons ™. What I am talking is the real upper bass horn, loaded “as horn” all the way down to it’s mouth rate. Thanks God I do not believe in the lower bass enclosures… :-)

Anyhow, this weekend a friend of my send me pictures of a Chinese guy who did something in the similar direction.

http://www.bbs01.com/add.php?forum=3&titid=142943&replyid=150430&page=14&style=1

Something in what that guy does (his name is Samuel) looks quite attractive: the correct size, the almost sufficient thickness of the walls and few other things. However, when I saw that to this quite nicely made horn this Chinese guy attached the flimsy Klangfilm 405 drivers with no back chambers then a sadistic smile crossed my face.

I always said that the people who spent some time with upper bass open baffles develop a permanent (or long lasting) corruption of taste to reproduced music. The open baffles at upper bass, no mater how large they are and what king drivers were used, produce completely different and completely artificial bass and this bass is VERY devastating for long-term listening experience. As the result the open baffles bass people get converted in a sort of cult where to even talk with them about sound become virtually imposable.

So, why Samuel form China built his nice horns and then ruined them by refusing to use a sealed back chamber? Go to his home page:

http://spaces.msn.com/members/turboguy/

, view his album and you will not have further questions. The upper bass open baffle is a diagnosis of this disease.

Even presuming that the throat of the Samuel’s horn is full 14” then the mass of the air on this horn’s belly is quite tangible for the Klangfilm 405’s diaphragms. As the result this horn should have quite strong throat reactance that should kill at least 10-15Hz of it lower response, but with this LF horn it might be even more. Why in the name of Rationale Samuel went for those heavy tasks of steam- or vacuum-bending those large panels but then desisted to loose the best 15Hz of his horn to the open baffles lunacy? Not to mention that his horn with completely under-damped back of the cones should weep and howl like a wolf.

Rgs,
Romy the caT

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