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In the Forum: Horn-Loaded Speakers
In the Thread: Impulse response, short notes and midbass horns.
Post Subject: I think we are talking about different things.Posted by Romy the Cat on: 6/14/2011
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 jessie.dazzle wrote:
Romy wrote:

"...The legato expressions the properly midbass horns handle with untouchable grace. The short and ultra short expression the bass horns tend to possess “longer” then it needed..."

I've sort of been wondering if you might bring this up; it is exactly the concern I had when briefly listening to my one completed 40Hz horn. In my case, there was no other mid-bass channel to use for comparison; still this characteristic was apparent.

Such is the price one pays for having bass horns one can truly bring home to mother! There will always be those nights when what we really want is a confidently nasty little red-head...

I have not ruled out taking on a mistress in the form of some sort of direct radiating setup (like your bass line arrays) running in roughly the same frequency range as the 40Hs horns. I don't know that it is a realistic means of addressing the issue and successfully integrating such a relationship usually proves to be very taxing.

Jessie, you might consider my response extremely strange but I very confident that I very much correct in my suspicion. My suspicion is that you are incorrect and we are talking about very different things. My comment was about very minor satellites, about a nuance character, not about the dominating quality. The effect I experience is very minor and I absolutely assure that no one who heard my playback ever noticed the thing in the direction I described.  The effect exists but at the degree that serves purely semi-theoretical purpose and it is WAY below the level that any motivation to change anything would appear. 

What you describe it feels like much stronger effect. Knowing that you was listening your midbass horn only briefly and as a uncompleted prototypes I absolutely assure you that what you hear was not what I am taking about but the effect of improperly integrated midbass.

You shall not hear the sound of ONLY midbass horn as in your case it is very narrow band devise and it has to be supplemented with channels the serve the overtones. Also, the integration of the 40 Hz horns are long and creative process – you will not be able to do over a few days of briefly listening. This site well documents the efforts and time I went over. It took 3 months until I was able to get the level, application and filtration that work.  The horn people who visited me did not believe that the horns where it is but it took a very deliberate tuning that sometime is not so orthodox and straight forward. You did not go over it and I feel that your comments are a bit premature.

Make a good direct radiating midbass channel. Make your playback to sound well with it. Then engage your midbass horn and make your playback to sound with the midbass horn identical to the direct radiating midbass channel. Then, ONLY THEN, comment about the differences between your midbass horn and direct radiator. I think you do a methodological de-service to yourself making concussions about uncompleted random midbass that were played with some kind of random playback that was not tuned to play with horn midbass.

I think we will return to this conversation but if you will be at the same boat as I am then you would agree that the subject is more has to do not with the actual sound but with some sort of sonic finesse.  For whatever it worth it shall motivate to built an alternative midbass channels, not that you are not free to do it…

The Cat

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