3" driver with 3/4" mounting depth

percy · 5th October 2006, 03:47 PM

trying to find a 3" driver that has a very shallow mounting depth. About 3/4" is the max. Any ideas what I could consider ?
This is for replacing the inside speaker of a couple of sortwave/communications receivers so doesn't have to be hi-fi, just something that doesn't sound really bad! or is atleast listenable!

Relax · 5th October 2006, 05:51 PM

I got 60 3" drivers 45 ohm that would work.

percy · 5th October 2006, 06:22 PM

45 ohm ? although anything in the 4 to 16 ohm range would be better, this might be worth trying, because I haven't found anything else yet

. What is it you have got ? Could you provide any more details ? Thanks.

Zaph · 5th October 2006, 08:47 PM

The Aurasound NSW2 might work for you. If you mount from the flange back, it's 1/2" depth, with the remaining 1/4" available for venting some of the back pressure.

Relax · 5th October 2006, 09:19 PM

I got 60 of them from BillF. No parameters but heres a picture:

http://www.diyaudio.com/forums/attac...amp=1155323525

Now that I look at them, they are 1 inch deep from back of mounting flange.

If you want a couple I can spare them no problem, just shipping for ya.

percy · 6th October 2006, 02:43 AM

zaph, mounting that 2" driver with the extra voluptous surround foam might be tricky. The flange dimensions might be off too.

relax, before I have you send one or two all the way here would you mind measuring the dimensions of those puppies ? I need the flange and mounting hole distances, mounting depth and also the magnet diameter.

Relax · 6th October 2006, 02:59 AM

sure thing:

They are exactly 3" x 3". The holes are 2 1/4" apart and 3/8" from the edges. Exactly 1" from flange to magnet backplate, and magnet is 1 5/8" diameter.

Also- I am in Dayton, MN. SO its not that far.

Willitwork · 6th October 2006, 03:05 AM

Percy, what is it you want to do with those speakers? As far as I know 45-ohm drivers are usually used in commercial or office environments for PA/paging purposes but I imagine using 4 in parallel can lower impedance enough for audio use... I'm just being curious.

percy · 20th October 2006, 06:45 PM

Hi relax,
just wanted to let you know that I am following a few good leads that might help me find a speaker that is a better fit - both physically and electrically.

http://www.kiwa.com/ATS909.html (see note about replacement speaker at the bottom of the page)
http://www.radiolabs.com/products/re...s/super909.php (their audio mod includes a different speaker with better fidelity)
There is also buzz about the Sony 7600/7601 receiver speaker being of great sound quality so that is also an option.

willitwork, like I said in my original post I am looking at replacing the stock speaker on a communications receiver -
http://www.universal-radio.com/catal...rxvr/2786.html

tomtt · 20th October 2006, 07:56 PM

Mineapolis Speaker Company

5th October 2006, 03:47 PM	#1
percy diyAudio Member Join Date: Apr 2004 Location: MN	3" driver with 3/4" mounting depth trying to find a 3" driver that has a very shallow mounting depth. About 3/4" is the max. Any ideas what I could consider ? This is for replacing the inside speaker of a couple of sortwave/communications receivers so doesn't have to be hi-fi, just something that doesn't sound really bad! or is atleast listenable!

5th October 2006, 08:47 PM	#4
Zaph diyAudio Member Join Date: Sep 2003 Location: Wisconsin	The Aurasound NSW2 might work for you. If you mount from the flange back, it's 1/2" depth, with the remaining 1/4" available for venting some of the back pressure. __________________ -Zaph\|Audio-

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5th October 2006, 05:51 PM	#2
Relax diyAudio Member Join Date: Jun 2005 Location: Dayton	I got 60 3" drivers 45 ohm that would work.

5th October 2006, 06:22 PM	#3
percy diyAudio Member Join Date: Apr 2004 Location: MN	45 ohm ? although anything in the 4 to 16 ohm range would be better, this might be worth trying, because I haven't found anything else yet . What is it you have got ? Could you provide any more details ? Thanks.

5th October 2006, 09:19 PM	#5
Relax diyAudio Member Join Date: Jun 2005 Location: Dayton	I got 60 of them from BillF. No parameters but heres a picture: http://www.diyaudio.com/forums/attac...amp=1155323525 Now that I look at them, they are 1 inch deep from back of mounting flange. If you want a couple I can spare them no problem, just shipping for ya.

6th October 2006, 02:43 AM	#6
percy diyAudio Member Join Date: Apr 2004 Location: MN	zaph, mounting that 2" driver with the extra voluptous surround foam might be tricky. The flange dimensions might be off too. relax, before I have you send one or two all the way here would you mind measuring the dimensions of those puppies ? I need the flange and mounting hole distances, mounting depth and also the magnet diameter.

6th October 2006, 02:59 AM	#7
Relax diyAudio Member Join Date: Jun 2005 Location: Dayton	sure thing: They are exactly 3" x 3". The holes are 2 1/4" apart and 3/8" from the edges. Exactly 1" from flange to magnet backplate, and magnet is 1 5/8" diameter. Also- I am in Dayton, MN. SO its not that far.

6th October 2006, 03:05 AM	#8
Willitwork diyAudio Member Join Date: Aug 2006	Percy, what is it you want to do with those speakers? As far as I know 45-ohm drivers are usually used in commercial or office environments for PA/paging purposes but I imagine using 4 in parallel can lower impedance enough for audio use... I'm just being curious.

20th October 2006, 06:45 PM	#9
percy diyAudio Member Join Date: Apr 2004 Location: MN	Hi relax, just wanted to let you know that I am following a few good leads that might help me find a speaker that is a better fit - both physically and electrically. http://www.kiwa.com/ATS909.html (see note about replacement speaker at the bottom of the page) http://www.radiolabs.com/products/re...s/super909.php (their audio mod includes a different speaker with better fidelity) There is also buzz about the Sony 7600/7601 receiver speaker being of great sound quality so that is also an option. willitwork, like I said in my original post I am looking at replacing the stock speaker on a communications receiver - http://www.universal-radio.com/catal...rxvr/2786.html

20th October 2006, 07:56 PM	#10
tomtt diyAudio Member Join Date: Aug 2002 Location: kansas city mo, and on occasion, around the world ... Blog Entries: 13	Mineapolis Speaker Company

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