Front horn, HF response.

jnb · 1st February 2008, 11:17 PM

In a tractrix front horn with a throat area just wider than the driver, why does hornresp show the HF rolling off continuously? Shouldn't the driver become a direct radiator at HF so the response plateaux at the rated sensitivity?

GM · 2nd February 2008, 12:10 AM

By default, Hornresp only shows the horn's output, but in the SPL response window you can choose to sum it with the driver's pistonic response in the Tools folder.

GM

jnb · 2nd February 2008, 03:22 AM

I have found the option "combined respose" and I can only get it to work when a BLH is selected by zeroing the rear chamber. Aside from losing the chamber, the response is 180 OOP with direct.

GM · 2nd February 2008, 05:50 AM

Oops! I'm still a newb with Hornresp and referenced the wrong tool for a FLH, click on directivity/response and choose the desired axis.

GM

jnb · 2nd February 2008, 09:54 AM

Ahhh, that's better

jnb · 22nd February 2008, 01:12 PM

If I build a 5000cm^2 mouth directly in a corner, is it fair to model another segment in hornresp of 5000 to 60000 conical, being the corner of the room itself?

MaVo · 22nd February 2008, 02:50 PM

If the flare rate stays the same and there are no big transitions, theoretically yes.

1st February 2008, 11:17 PM	#1
jnb diyAudio Member Join Date: Dec 2006	Front horn, HF response. In a tractrix front horn with a throat area just wider than the driver, why does hornresp show the HF rolling off continuously? Shouldn't the driver become a direct radiator at HF so the response plateaux at the rated sensitivity?

2nd February 2008, 12:10 AM	#2
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	By default, Hornresp only shows the horn's output, but in the SPL response window you can choose to sum it with the driver's pistonic response in the Tools folder. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

2nd February 2008, 05:50 AM	#4
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Oops! I'm still a newb with Hornresp and referenced the wrong tool for a FLH, click on directivity/response and choose the desired axis. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

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
low frequency room response - front vs. rear ported	JLC7	Multi-Way	0	3rd May 2009 02:04 AM
how to go from horn response to a folded bass horn design?	paulspencer	Subwoofers	8	4th November 2005 10:44 PM
Comments on bass horn sim in horn response	paulspencer	Subwoofers	38	1st November 2005 08:34 PM
front load W horn???	psychosteve	Multi-Way	15	8th November 2004 06:12 PM
Front Horn	advisd	Multi-Way	9	3rd December 2003 02:47 PM


	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

2nd February 2008, 03:22 AM	#3
jnb diyAudio Member Join Date: Dec 2006	I have found the option "combined respose" and I can only get it to work when a BLH is selected by zeroing the rear chamber. Aside from losing the chamber, the response is 180 OOP with direct.

2nd February 2008, 09:54 AM	#5
jnb diyAudio Member Join Date: Dec 2006	Ahhh, that's better

22nd February 2008, 01:12 PM	#6
jnb diyAudio Member Join Date: Dec 2006	If I build a 5000cm^2 mouth directly in a corner, is it fair to model another segment in hornresp of 5000 to 60000 conical, being the corner of the room itself?

22nd February 2008, 02:50 PM	#7
MaVo diyAudio Member Join Date: Jan 2006 Location: Herne	If the flare rate stays the same and there are no big transitions, theoretically yes.

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

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