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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s lowest channel.
Post Subject: The problem that that I see with my ULFPosted by Romy the Cat on: 3/10/2011
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As good as my ULF turned out to be but purely conceptually it is not an ultimate proper playback solution. I have midbass horns runs down to 42Hz and ULF kicks in at 25Hz with 3rg order. In reality does to the geometry of my room and the fact the distance between midbass horns and the opposite wall is a half lower cut of wavelength I think my midbass horns sound lower then what they are. The 42Hz/25Hz is fine configuration but not the best for ULF perspective. The best would be to have midbass horns going doe to 30Hz and to have ULF to kick in at 17-18Hz. If I had this setting then the ULD would be much more non-auditable and this would be much better in my view. Sure it is not what I will be going for the folks who contemplating it might consider it. A good idea is to have midbass, bass and ULF as 3 independently tunable, amplifiable entities. Then all stupid fantasies that people are telling about room tuning are evaporating as you have narrow tunable slices of radiating spectra that might be custom tined foe what the given room need.
BTW, I do not think that industry even produced any driver or speakers that are useable at 17Hz. To have a sealed box with 17Hz would need to have a driver with free air resonance at 10-11Hz. If you need 100dB sensitivity from such a driver, high power handling, low distortion and ability to react to low currents then we are talking about a driver that is verbally impossible to make with conventional methods.
That all is not truly applicable to me as I am set with what I got. The only thing that I might be contemplating in future is to have a powerful 200 SET amp to drive my lower bass, perhaps even DC-able OTL. To find this monster tube amps would be another subject...
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