Made a boo boo when constructing a speaker - will it have much effect?

wixy · 16th May 2007, 03:44 AM

I recently constructed a speaker (Fostex FE208ESigma cabinet with FE206E driver), and made an error of not placing the driver in the position of absolute centre. It is about 1 - 2 mm off to one side.

What sort of affect (if any) will this have on sound?

Nanook · 16th May 2007, 03:49 AM

If you can hear a 1 or 2 mm "offset", you hear with the dogs..

454Casull · 16th May 2007, 03:56 AM

It's probably about as audible as the difference between the loudspeaker playing at 22 deg C ambient temp and 24 deg C.

footstony · 16th May 2007, 04:24 AM

Theory would say it should sound slightly better

Regards Philip

wixy · 16th May 2007, 06:53 AM

Hooray! Thanks guys!

Scottmoose · 16th May 2007, 08:21 AM

I wish I could build well enough to have only a 1-2mm margin of error.

Geoff H · 16th May 2007, 10:51 AM

My thoughts exactly. I hope the other side's a mirror image, be a shame to skew the stage of centre.

Well done.

Geoff

AndrewT · 16th May 2007, 11:08 AM

Hi,
deliberately offsetting the driver from the nearest three edges can deliver a small audible improvement, particularly at the higher frequencies.
Similarly removing the corner at those nearby edges can help the sound. Try a large radius curve or even a chamfer.

jmateus · 16th May 2007, 11:23 AM

I can't believe it!!!

Puffin · 18th May 2007, 10:34 AM

Wixy. We spoke about the cutting plan. I assume it was all o.k. Got any pics of your speakers ?

16th May 2007, 03:44 AM	#1
wixy diyAudio Member Join Date: Mar 2006 Location: Melbourne, Australia	Made a boo boo when constructing a speaker - will it have much effect? I recently constructed a speaker (Fostex FE208ESigma cabinet with FE206E driver), and made an error of not placing the driver in the position of absolute centre. It is about 1 - 2 mm off to one side. What sort of affect (if any) will this have on sound?

16th May 2007, 03:49 AM	#2
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	essentially none. If you can hear a 1 or 2 mm "offset", you hear with the dogs.. __________________ stew ☮ -"A sane man in an insane world appears insane."

16th May 2007, 03:56 AM	#3
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	It's probably about as audible as the difference between the loudspeaker playing at 22 deg C ambient temp and 24 deg C. __________________ Building a 2.1 system out of a 3/4"x4'x8' sheet

16th May 2007, 11:08 AM	#8
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, deliberately offsetting the driver from the nearest three edges can deliver a small audible improvement, particularly at the higher frequencies. Similarly removing the corner at those nearby edges can help the sound. Try a large radius curve or even a chamfer. __________________ regards Andrew T.

16th May 2007, 11:23 AM	#9
jmateus diyAudio Member Join Date: Mar 2003 Location: US, New Jersey	I can't believe it!!! __________________ JLH 2005, Cyrus and so on...


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16th May 2007, 04:24 AM	#4
footstony diyAudio Member Join Date: Oct 2004	Theory would say it should sound slightly better Regards Philip

16th May 2007, 06:53 AM	#5
wixy diyAudio Member Join Date: Mar 2006 Location: Melbourne, Australia	Hooray! Thanks guys!

16th May 2007, 08:21 AM	#6
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	I wish I could build well enough to have only a 1-2mm margin of error.

16th May 2007, 10:51 AM	#7
Geoff H diyAudio Member Join Date: Oct 2006	My thoughts exactly. I hope the other side's a mirror image, be a shame to skew the stage of centre. Well done. Geoff

18th May 2007, 10:34 AM	#10
Puffin diyAudio Member Join Date: Feb 2006 Location: U.K	Wixy. We spoke about the cutting plan. I assume it was all o.k. Got any pics of your speakers ?

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