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In the Forum: Horn-Loaded Speakers
In the Thread: Transition : Driver to throat, when throat is smaller than driver
Post Subject: Re: Transition : Driver to throat, when throat is smaller than driverPosted by jessie.dazzle on: 5/26/2006
Thanks Romy and JLH for your input :::: It seems very likely that in this application (100 - 1000Hz), the return on my investment may be small to nonexistant, and that I may be wasting my time in trying to create a smoother transition :::: Looking at my computer models, intuitively it would seem that unless the taper of the transition spacer were a lot more gradual (meaning a much deeper spacer when measured along the horn axis), it may not have much "smoothing" effect at all :::: However, I remain disturbed by the following (silly ?) visual analogies :::: Imagine trying to coax a soap bubble through a funnel having a sharply-stepped passage... Another image : Fitting an intake manifold to the port on a cylinder head, where the diameter of the manifold is greater than the diameter of the port ; in this case, at higher velocities, the stepped edge creates turbulence, further reducing the opening, and if fuel is introduced up stream of this junction, the result will be a puddle (until the manifold heats up, possibly going "boom") :::: I think I will just have to physically try the experiment... Because I cannot actually see the waves passing through the horn, I realize that there is no chance of completely understanding the cause of any difference I may hear. It should be enough to answer in simple binary fashion : i.e. : "ahh, better", or "whoa, worse" :::: Any additional thoughts would be very appreciated :::: jd :::: PS, Thank you Romy for uploading the images : I've tried it now with both the Safari and Explorer browsers (Mac OS X v.10.4.6)... There is simply no "yellow icon in the tool bar" as stated in the instructions for photo uploading...
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