Compound horn for FE166ES-R FULL PLANS - Page 2

hm · 24th April 2009, 04:17 PM

good luck!

Jeb-D. · 24th April 2009, 04:27 PM

Looks like a cool project!

brsanko · 24th April 2009, 06:41 PM

the middle row of charts shows the response of both horns working together. The one on the right doesn't look really impressive by itself but when you consider that hornresp doesn't model the high frequencies of the driver correctly because it assumes a flat plane insted of a cone with a whizzer. If you look at how it plots the high frequencies in an open baffle compaired to how it plots it in the horn (middle left) you get a pretty good idea what it does for the high frequencies. As you can see by the plot it's bringing the spl up pretty evenly all the way up and if the true response of the driver is relatively flat then the response of the driver in the horn will be as well. This sounds like a leap of faith but we've done it several times and have found this to be quite true.

mp9 · 8th September 2009, 08:31 PM

Quote:

Originally Posted by brsanko

as soon as I get some time I'm gonna figure out all the angles on all the cuts.

this design reminds me of the beauhorn virtuoso with front firing blh. do you think it would be optimal to router a circular rebate for fitting the plastic ring at the edge of the surround on the front of the fostex drivers frame in order to create a tighter passage for the fh's air flow? also could the blh be made somewhat wider to bring the usable bass down to ~45hz-50hz without the help of a eq etc. yet still meshing with the fh fq res?
i'd like to see the updates when they're ready.

brsanko · 8th September 2009, 08:59 PM

making it wider won't bring the bass lower for that it needs to be longer.

mp9 · 8th September 2009, 09:16 PM

how much larger would it need to get for that kind of lf resp.?

brsanko · 10th September 2009, 01:38 AM

How low do you want to go?

mp9 · 10th September 2009, 03:43 AM

40hz-45hz would be good.

mp9 · 28th November 2009, 05:42 AM

have there been any update of the plans, i.e. slightly larger for more bass and measurements/cut angles?

paba · 28th November 2009, 12:40 PM

almost 1300 views, lots of interest... I know I am. It will probably be between this one and the Hiro.

thanks for sharing
paba

24th April 2009, 04:17 PM	#11
hm diyAudio Member Join Date: Feb 2004 Location: near Hamburg Germany	good luck! __________________ http://www.hm-moreart.de

24th April 2009, 06:41 PM	#13
brsanko diyAudio Member Join Date: Dec 2003 Location: Duluth, MN	the middle row of charts shows the response of both horns working together. The one on the right doesn't look really impressive by itself but when you consider that hornresp doesn't model the high frequencies of the driver correctly because it assumes a flat plane insted of a cone with a whizzer. If you look at how it plots the high frequencies in an open baffle compaired to how it plots it in the horn (middle left) you get a pretty good idea what it does for the high frequencies. As you can see by the plot it's bringing the spl up pretty evenly all the way up and if the true response of the driver is relatively flat then the response of the driver in the horn will be as well. This sounds like a leap of faith but we've done it several times and have found this to be quite true. __________________ PASSIONN

8th September 2009, 08:59 PM	#15
brsanko diyAudio Member Join Date: Dec 2003 Location: Duluth, MN	making it wider won't bring the bass lower for that it needs to be longer. __________________ PASSIONN

10th September 2009, 01:38 AM	#17
brsanko diyAudio Member Join Date: Dec 2003 Location: Duluth, MN	How low do you want to go? __________________ PASSIONN

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24th April 2009, 04:27 PM	#12
Jeb-D. diyAudio Member Join Date: Nov 2005 Location: SoCal	Looks like a cool project!

8th September 2009, 09:16 PM	#16
mp9 diyAudio Member Join Date: Jun 2006	how much larger would it need to get for that kind of lf resp.?

10th September 2009, 03:43 AM	#18
mp9 diyAudio Member Join Date: Jun 2006	40hz-45hz would be good.

28th November 2009, 05:42 AM	#19
mp9 diyAudio Member Join Date: Jun 2006	have there been any update of the plans, i.e. slightly larger for more bass and measurements/cut angles?

28th November 2009, 12:40 PM	#20
paba diyAudio Member Join Date: Sep 2004 Location: Montreal	almost 1300 views, lots of interest... I know I am. It will probably be between this one and the Hiro. thanks for sharing paba

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