Can someone look at this diagram for me?

warnsey · 30th May 2006, 11:13 AM

G'day. Well previously i thought i was going to go for a bass reflex design using the Fostex FE206E. I still plan to use this driver but have drawn up a design that is similar to a front horn type of design. I made the dimensions minimal because my g/f would kill me if i put anything bigger in. I guess my question is would this sound anygood or am i missing some fundamental design aspects.

Note: Sorry bout the drawings i am using the mac equvalent of microsoft paint. If anyone knows any free drawing programs that'd be great.

2nd Note. The shody drawing on the corners i was planning to use flexible plywood to curve all the corners and stuffing material behind the drivers.

Any input would be great.

[IMG]

[/IMG]

ow31 · 30th May 2006, 12:24 PM

Ohhh..........
Take care ! Your enclosure will not give you what you expect.

A backhorn "must" respect some laws : lenght, wide, depht,...

Your will make the speaker moving air with no rules.

sreten · 30th May 2006, 12:39 PM

Hi,

when in doubt use something that already exists, e.g.

http://www.humblehomemadehifi.com/Solo206.html

/sreten.

ghpicard · 30th May 2006, 12:52 PM

With that outer dimensions as a requisite, IMO you should head to build Dave's (planet10) Frugelhorn project.
BLH design is not an easy task, with lots of math involved. Just take a look at MJK site, http://www.quarter-wave.com/Horns/Horn_Theory.html
Or you could take the trial and error way and risk to waste lots of wood or whatever material you choose to build.

Gastón

Scottmoose · 30th May 2006, 01:22 PM

What you have there is a Voigt style BLH / TL, but looking at the dimensions, it hasn't enough Vb to work properly. If your GF won't allow you an enclosure large enough to do the job properly, then I'd suggest you go back to either a reflex or MLTL design.

Snickers-is · 31st May 2006, 01:21 AM

You should read a bit on the Single Driver Website. You will also find different alignment calculators there that will bring you a bit closer to your goal.

link: http://melhuish.org/audio/

30th May 2006, 11:13 AM	#1
warnsey diyAudio Member Join Date: May 2006	Can someone look at this diagram for me? G'day. Well previously i thought i was going to go for a bass reflex design using the Fostex FE206E. I still plan to use this driver but have drawn up a design that is similar to a front horn type of design. I made the dimensions minimal because my g/f would kill me if i put anything bigger in. I guess my question is would this sound anygood or am i missing some fundamental design aspects. Note: Sorry bout the drawings i am using the mac equvalent of microsoft paint. If anyone knows any free drawing programs that'd be great. 2nd Note. The shody drawing on the corners i was planning to use flexible plywood to curve all the corners and stuffing material behind the drivers. Any input would be great. [IMG][/IMG]

31st May 2006, 01:21 AM	#6
Snickers-is diyAudio Member Join Date: Nov 2004 Location: Rakkestad	You should read a bit on the Single Driver Website. You will also find different alignment calculators there that will bring you a bit closer to your goal. link: http://melhuish.org/audio/ __________________ Live sounds better than HiFi.

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30th May 2006, 12:24 PM	#2
ow31 diyAudio Member Join Date: May 2006	Ohhh.......... Take care ! Your enclosure will not give you what you expect. A backhorn "must" respect some laws : lenght, wide, depht,... Your will make the speaker moving air with no rules.

30th May 2006, 12:39 PM	#3
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, when in doubt use something that already exists, e.g. http://www.humblehomemadehifi.com/Solo206.html /sreten.

30th May 2006, 12:52 PM	#4
ghpicard diyAudio Member Join Date: May 2005 Location: Buenos Aires	With that outer dimensions as a requisite, IMO you should head to build Dave's (planet10) Frugelhorn project. BLH design is not an easy task, with lots of math involved. Just take a look at MJK site, http://www.quarter-wave.com/Horns/Horn_Theory.html Or you could take the trial and error way and risk to waste lots of wood or whatever material you choose to build. Gastón

30th May 2006, 01:22 PM	#5
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	What you have there is a Voigt style BLH / TL, but looking at the dimensions, it hasn't enough Vb to work properly. If your GF won't allow you an enclosure large enough to do the job properly, then I'd suggest you go back to either a reflex or MLTL design.