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Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) [message #88450 is a reply to message #88057]

Mon, 16 July 2018 09:50

Wayne Parham
Messages: 18789
Registered: January 2001

Illuminati (33rd Degree)

Very cool looking tweeter enclosure!

As an aside, the compression driver has a gasket that provides seal even with some of the casting marks on the mount. The casting marks simply press into the gasket. Still, it doesn't hurt to take those down with sandpaper as long as one isn't too aggressive.

Earlier versions of the horn had an aluminum throat mount that was machined from billet. The current H390C wood horn still has this mount. It has an O-Ring immediately outside the throat.

But I found this was extreme overkill. The gasket on the front of the compression driver works very well.

Another example of something similar: Some people press modeling clay into the slight separation between compression driver and throat mount. They think the tiny gap might be a problem, like a larger discontinuity would be. But it's acoustically too small - Small compared to wavelength. It's kind of like how you can't see the mesh of a screen door. A better analogy would be a large tire rolling over a small crack which passes without disturbance. There are no anomalies that can be detected from the tiny gap between compression driver exit and horn throat entrance; There are no measurable differences made when using the modeling clay. So while it doesn't hurt, it doesn't help either.

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[Message index]

		Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Mon, 21 May 2018 21:09
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Tue, 22 May 2018 08:17
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Tue, 22 May 2018 10:07
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Tue, 22 May 2018 11:26
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Tue, 22 May 2018 11:47
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: Wayne Parham on Tue, 22 May 2018 16:03
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: ggnarley on Wed, 23 May 2018 21:28
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Wed, 23 May 2018 22:52
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sun, 10 June 2018 20:16
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Tue, 12 June 2018 22:14
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: ggnarley on Thu, 14 June 2018 17:19
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: johnnycamp5 on Wed, 13 June 2018 07:17
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: Wayne Parham on Wed, 13 June 2018 11:46
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Thu, 14 June 2018 06:51
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Thu, 14 June 2018 21:30
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Fri, 15 June 2018 00:54
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sat, 14 July 2018 13:10
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sat, 14 July 2018 14:45
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sat, 14 July 2018 15:09
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sat, 14 July 2018 16:12
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sun, 15 July 2018 17:19
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sun, 15 July 2018 17:53
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sun, 15 July 2018 18:24
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sun, 15 July 2018 19:06
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sun, 15 July 2018 19:37
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: joshua43214 on Sun, 15 July 2018 19:47
		Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center) By: Wayne Parham on Mon, 16 July 2018 09:50

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