Unknown 3" drivers - Can you do anything with 'em?

Zeeall · 12th May 2007, 02:03 AM

I've got a pair of three inch drivers of unknown specifications it says

"JB
1113-490
4 ohm 5W"

on the back.

I happen to know that they come from a bass reflex speaker

I have limited knowledge when it comes to speaker design but i would like to build something with them (since i got them for free), is there any "universial" design that could work?

Thanks in advance, Zeeall

Pics coming shortly!

(Sorry for my bad english)

planet10 · 12th May 2007, 02:06 AM

Pictures would help a lot... with so many OEM drivers the numbers sometimes don't tell us much.

dave

Zeeall · 12th May 2007, 07:45 AM

Here are the pics!

I think the drivers might come from computer speakers. They are probably "crap" but it could be fun to try to build something with them

Zeeall · 13th May 2007, 01:17 AM

After some investigation i have found out that they come from IBM Infinity computer speakers. but i have no specifications on them.

planet10 · 13th May 2007, 02:08 AM

That probably means they were targeted at small bass reflex boxes.

Are you wanting to get as much bass as possible out of these or will they have help on the bottom?

dave

Zeeall · 13th May 2007, 06:57 AM

I just thought it would be fun to build my own speakers instead of buying them, but since they are from computer speakers i will probably not do anything with them (unless you got some good idea).

irbow · 13th May 2007, 09:39 AM

There're lots of DIY speaker sites try:
http://www.partsexpress.com/projects.../homeaudio.cfm
or
http://www.mhsoft.nl/default1.asp

And search around this site.

planet10 · 13th May 2007, 10:51 PM

Quote:

Originally posted by Zeeall
I just thought it would be fun to build my own speakers instead of buying them, but since they are from computer speakers i will probably not do anything with them (unless you got some good idea).

In that case your best bet is a smallish ~2 liter sealed or aperiodic enclosure. The drivers can be tweaked (after you get them in cabinets) which will give a good feel for what that does.

You can build cabs out of wood, or get cretaive with a found object... i've always thot these were an object waiting for an application

http://www.ikea.com/webapp/wcs/store...103&langId=-15
IKEA | Home | Decoration | Bowls, dishes & vases | Bowls & dishes | BLANDA bowls series

2 of these larger ones in a sphere would be just about the right volume,

Ceramic pots, coffee cans, go crazy...

dave

v-bro · 13th May 2007, 11:07 PM

PVC

Zeeall · 14th May 2007, 03:10 AM

mm, pvc pipes looks like fun!

@ planet10, what size wooden bowl do you mean? (there are several different sizes)

12th May 2007, 02:03 AM	#1
Zeeall diyAudio Member Join Date: May 2007	Unknown 3" drivers - Can you do anything with 'em? I've got a pair of three inch drivers of unknown specifications it says "JB 1113-490 4 ohm 5W" on the back. I happen to know that they come from a bass reflex speaker I have limited knowledge when it comes to speaker design but i would like to build something with them (since i got them for free), is there any "universial" design that could work? Thanks in advance, Zeeall Pics coming shortly! (Sorry for my bad english)

12th May 2007, 02:06 AM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Pictures would help a lot... with so many OEM drivers the numbers sometimes don't tell us much. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

13th May 2007, 02:08 AM	#5
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	That probably means they were targeted at small bass reflex boxes. Are you wanting to get as much bass as possible out of these or will they have help on the bottom? dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

13th May 2007, 09:39 AM	#7
irbow diyAudio Member Join Date: May 2007	There're lots of DIY speaker sites try: http://www.partsexpress.com/projects.../homeaudio.cfm or http://www.mhsoft.nl/default1.asp And search around this site. __________________ Iain.

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13th May 2007, 01:17 AM	#4
Zeeall diyAudio Member Join Date: May 2007	After some investigation i have found out that they come from IBM Infinity computer speakers. but i have no specifications on them.

13th May 2007, 06:57 AM	#6
Zeeall diyAudio Member Join Date: May 2007	I just thought it would be fun to build my own speakers instead of buying them, but since they are from computer speakers i will probably not do anything with them (unless you got some good idea).

14th May 2007, 03:10 AM	#10
Zeeall diyAudio Member Join Date: May 2007	mm, pvc pipes looks like fun! @ planet10, what size wooden bowl do you mean? (there are several different sizes)

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