looking for 6.5inch woofers suitable for a 30 - 35Hz horn... and a small horn too :P

SkinnyBoy · 9th February 2004, 01:07 PM

as the title says... anyone got any ideas? I noticed that the scan speak drivers have really low fs... which is good... but really high pricetag :P I also discovered that if you put multiple drivers in the one horn, the horn length gets shorter... why is that? THANX!

SkinnyBoy · 9th February 2004, 01:47 PM

two peerless 850122s in a horn.... best I could come up with..

SkinnyBoy · 9th February 2004, 01:48 PM

not the best.... but space is an issue in a car.. lol

JeremyD · 9th February 2004, 02:09 PM

What are the specs on those drivers?

SkinnyBoy · 9th February 2004, 02:18 PM

umm... there are some here.....
http://www.d-s-t.com/peerless/data/850122.htm

but I'm not sure if they are the ones I used.. lol

why do you ask?

needtubes · 9th February 2004, 02:56 PM

Any drawings of how you are going to make this horn? I was also thinking of a horn with dual 6.5" or 8" woofers, though not for car, so it can be a tad larger. I wanted it to be useful down to about 25-30Hz... but I have not done anything with horns before, so a picture could be useful to see how you are going to do this.

SkinnyBoy · 9th February 2004, 03:27 PM

Quote:

Originally posted by needtubes
Any drawings of how you are going to make this horn? I was also thinking of a horn with dual 6.5" or 8" woofers, though not for car, so it can be a tad larger. I wanted it to be useful down to about 25-30Hz... but I have not done anything with horns before, so a picture could be useful to see how you are going to do this.

I haven't designed the horn yet, as I haven't decided what the best drivers to use are.. :P

SkinnyBoy · 9th February 2004, 04:01 PM

grr... I hate speakers:P

this horn would be good for about 40watts before the drivers exceed X-max

EDIT!! but at 35Hz it should handle full power..

lol I honestly have no idea... MIKE!!!! HELP!!

JeremyD · 9th February 2004, 06:40 PM

Quote:

Originally posted by SkinnyBoy
umm... there are some here.....
http://www.d-s-t.com/peerless/data/850122.htm

but I'm not sure if they are the ones I used.. lol

why do you ask?

The response curve looks a little peaky and has an odd low end hump....Just wanted to see the specs of the driver. At first I though it looked like a too high q driver, but at .4 its hardly out of useable range for a horn.

Certainly looks like the horn could benefit from being a little larger...

GM · 9th February 2004, 08:40 PM

>I also discovered that if you put multiple drivers in the one horn, the horn length gets shorter... why is that?

====

View the single driver horn along its length, now cut off whatever portion of the initial expansion is required to get to the larger throat area dictated by the multiple drivers........

Note that if the shorter length is <1/4WL of the effective mouth's Fc then it will perform like a high Q sealed cab below its effective 1/4WL.

GM

9th February 2004, 01:07 PM	#1
SkinnyBoy Banned Join Date: Nov 2002 Location: Adelaide, Australia	looking for 6.5inch woofers suitable for a 30 - 35Hz horn... and a small horn too :P as the title says... anyone got any ideas? I noticed that the scan speak drivers have really low fs... which is good... but really high pricetag :P I also discovered that if you put multiple drivers in the one horn, the horn length gets shorter... why is that? THANX!

9th February 2004, 08:40 PM	#10
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	>I also discovered that if you put multiple drivers in the one horn, the horn length gets shorter... why is that? ==== View the single driver horn along its length, now cut off whatever portion of the initial expansion is required to get to the larger throat area dictated by the multiple drivers........ Note that if the shorter length is <1/4WL of the effective mouth's Fc then it will perform like a high Q sealed cab below its effective 1/4WL. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

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9th February 2004, 02:09 PM	#4
JeremyD diyAudio Member Join Date: Mar 2003 Location: New Bedford, MA	What are the specs on those drivers?

9th February 2004, 02:18 PM	#5
SkinnyBoy Banned Join Date: Nov 2002 Location: Adelaide, Australia	umm... there are some here..... http://www.d-s-t.com/peerless/data/850122.htm but I'm not sure if they are the ones I used.. lol why do you ask?

9th February 2004, 02:56 PM	#6
needtubes diyAudio Member Join Date: May 2003 Location: USA	Any drawings of how you are going to make this horn? I was also thinking of a horn with dual 6.5" or 8" woofers, though not for car, so it can be a tad larger. I wanted it to be useful down to about 25-30Hz... but I have not done anything with horns before, so a picture could be useful to see how you are going to do this.

9th February 2004, 04:01 PM	#8
SkinnyBoy Banned Join Date: Nov 2002 Location: Adelaide, Australia	grr... I hate speakers:P this horn would be good for about 40watts before the drivers exceed X-max EDIT!! but at 35Hz it should handle full power.. lol I honestly have no idea... MIKE!!!! HELP!!

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