Dampening in Tapped Horns?? - Page 3

atilsley · 14th June 2009, 09:25 AM

All my pics are oversized....damn it

atilsley · 14th June 2009, 09:26 AM

I have a thread on Stereo Net here in Australia...

http://www.stereo.net.au/forums/showthread.php?t=14588

Some pics there

Don Snyder · 20th June 2009, 12:14 AM

Here's Andrew's Tapped Horn!

I pulled the pic off www.stereo.net.au

It's a single fold tapped horn (looks like 14 x 18 x 88 inch outside). The only thing unusual is L12 has no taper,
which makes the build a little harder without any improvement. The driver has an x-max of only 3.5mm, which
makes this box good for HT, but not PA.

atilsley · 20th June 2009, 12:59 AM

Hi Don.

What's L12?

There is a taper on the inside panel. The top measurements where the panel finishes are:

195mm (7.7 inches); 205mm (8.1); 211mm (8.3).

There are two small corner deflectors at the top of differing sizes...both 45 degrees.

The horn mouth is 324mm x 324mm (12.8 x 12.8).

I'm still mucking around with deadening. At the moment, I have both sides of the horn channel damped with fairly loose poly fibre...plus some dimpled foam at the horn curve. I think this piece needs to be removed...not sure.

I know this - 600-watts is hard to tame..especially where the driver is 97dB...and my lounge room is a moderate 4m x 7m.

In a way, I'd prefer a valve amp....

I agree with your comment - the horn would make a massive impact for Home Theatre...which I don't do any more.

My latest project is a pair of Coral 12-inch drivers in sealed ply boxes...heavily braced and damped. Nice tight sound. I'm stunned that the 'vintage' Corals can generate so much bass...only 60-watt drivers....94dB. Again, I'm using the same 600-watt amp. I can hardly move the volume dial before all hell breaks loose.

Don Snyder · 20th June 2009, 07:01 AM

Hi Andrew,

In HornResp, L12 is the length from the closed end of the Tapped Horn to the centerline of the front of the driver.
Your baffle (where the speaker is mounted) appears to be a separate piece, not just part of the flare panel.
William Cowan, and many others combine the flare panel and the baffle panel into one. This simplifies the carpentry
without causing any problems.

atilsley · 20th June 2009, 09:24 AM

Thanks Don.

Yes..I thought how much of a difference having the speaker mount square or in-line with the main divider...any way...done now.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
jbell's set of four tapped horns	davygrvy	Subwoofers	475	15th September 2011 03:30 PM
how to model tapped horns?	weikertball	Subwoofers	2	11th January 2009 10:43 PM
tapped horns - a different perspective & an alternative	vasyachkin	Multi-Way	54	14th February 2008 05:25 AM
Effect of using dampening in rear horns?	Geek	Multi-Way	19	26th September 2004 02:11 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

14th June 2009, 09:25 AM	#21
atilsley diyAudio Member Join Date: Aug 2008	All my pics are oversized....damn it

14th June 2009, 09:26 AM	#22
atilsley diyAudio Member Join Date: Aug 2008	I have a thread on Stereo Net here in Australia... http://www.stereo.net.au/forums/showthread.php?t=14588 Some pics there

20th June 2009, 12:59 AM	#24
atilsley diyAudio Member Join Date: Aug 2008	Hi Don. What's L12? There is a taper on the inside panel. The top measurements where the panel finishes are: 195mm (7.7 inches); 205mm (8.1); 211mm (8.3). There are two small corner deflectors at the top of differing sizes...both 45 degrees. The horn mouth is 324mm x 324mm (12.8 x 12.8). I'm still mucking around with deadening. At the moment, I have both sides of the horn channel damped with fairly loose poly fibre...plus some dimpled foam at the horn curve. I think this piece needs to be removed...not sure. I know this - 600-watts is hard to tame..especially where the driver is 97dB...and my lounge room is a moderate 4m x 7m. In a way, I'd prefer a valve amp.... I agree with your comment - the horn would make a massive impact for Home Theatre...which I don't do any more. My latest project is a pair of Coral 12-inch drivers in sealed ply boxes...heavily braced and damped. Nice tight sound. I'm stunned that the 'vintage' Corals can generate so much bass...only 60-watt drivers....94dB. Again, I'm using the same 600-watt amp. I can hardly move the volume dial before all hell breaks loose.

20th June 2009, 09:24 AM	#26
atilsley diyAudio Member Join Date: Aug 2008	Thanks Don. Yes..I thought how much of a difference having the speaker mount square or in-line with the main divider...any way...done now.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)