New Danley sub

Re: New Danley sub

Ivan Beaver said:
Or you can do a modified version of the exit in the middle 120" wide and make a V out of it. The mouths would be at the point of the V.This does a couple of things-especially if you put a "top" on the V (ie opposite the floor), you will extend the low freq response (due to a now longer horn path), gain SPL (due to a narrowing of the "pattern" 90°vs180°).If you went to 4 cabinets in the V (2 stacks of 2), you would have a very serious output configuration.
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Would there be anything to gain from doing the V-configuration with TH118s, you think? Or is it too small?Also, what would be required from the "roof" material (the sheet you'd put on top of the)? How sturdy/heavy would it need to be to work well? I'm assuming that a roof that vibrates too much would not give the optimal power out of the array? Any suggestions to specific objects you'd use for this?
 
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Re: New Danley sub

Frederik Rosenkjær said:
Would there be anything to gain from doing the V-configuration with TH118s, you think? Or is it too small?Also, what would be required from the "roof" material (the sheet you'd put on top of the)? How sturdy/heavy would it need to be to work well? I'm assuming that a roof that vibrates too much would not give the optimal power out of the array? Any suggestions to specific objects you'd use for this?
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As with all things bass-size matters.

Since the "wooden" front part of the TH118 is not all that large, it would be most effective in the upper bass regions. How much is hard to say without actual measurement. But you would get some gain.

Also because of the way the Tapped horn works, it is not as effective (but still does benefit a bit) with a V configuration as a normal bass horn-like the DBH218LC.

As far as the "top" goes, it needs to be rigid and not flex. If a material is flexing, then it is absorbing enery-NOT what you want. You want it to confine and direct the energy.

Think of it as a sub cabinet that does not have proper bracing. Add some bracing and the bass will get louder and "tighter".
 
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