apex jr 3" drivers

neededandwanted · 15th August 2007, 02:48 PM

Has anyone played with the new 3 inchers from Apex Jr. enough to have some measurements or parameters?

He's only had them in stock for a bit over a week, but has been selling some.

The are at:
http://apexjr.com/speakerstuff.html
currently the second item on the page.

The only description we have so far is:
M & K Sound
3" Dual cone 12 ohm Speaker $3.95ea

The picture shows them front and back. The driver seems to have a secondary cone similar to what was called a "whizzer cone" (still called that?) but a good bit larger.

If we can get some good work out of these, they are a steal at $4 each.

They are also small enough to pack tightly for a line source array.

They look like they would have a pretty high moving mass to area ratio (small, extra cone, big surround) so they may be pretty innefficient though.

There is not an infinite supply available--maybe 600 left or so--we can't all build line arrays with them, but maybe they could also work in a WMTMW ? Dunno. Need some numbers first.

Anyone?

BarryV · 16th February 2009, 03:36 PM

Did you ever buy any of those 3" drivers on the Apex site?

BarryV · 19th February 2009, 04:20 AM

When I replied to this message (after searching) I was unaware that it was originally posted in the "Subwoofer" section. Perhaps a moderator could move it to a more appropriate section (Loudspeakers?)?

Thanks,

Barry

15th August 2007, 02:48 PM	#1
neededandwanted diyAudio Member Join Date: Apr 2003 Location: Washington, DC	new Apex Jr. 3 inch M & K ? Has anyone played with the new 3 inchers from Apex Jr. enough to have some measurements or parameters? He's only had them in stock for a bit over a week, but has been selling some. The are at: http://apexjr.com/speakerstuff.html currently the second item on the page. The only description we have so far is: M & K Sound 3" Dual cone 12 ohm Speaker $3.95ea The picture shows them front and back. The driver seems to have a secondary cone similar to what was called a "whizzer cone" (still called that?) but a good bit larger. If we can get some good work out of these, they are a steal at $4 each. They are also small enough to pack tightly for a line source array. They look like they would have a pretty high moving mass to area ratio (small, extra cone, big surround) so they may be pretty innefficient though. There is not an infinite supply available--maybe 600 left or so--we can't all build line arrays with them, but maybe they could also work in a WMTMW ? Dunno. Need some numbers first. Anyone?

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16th February 2009, 03:36 PM	#2
BarryV diyAudio Member Join Date: Jan 2009 Location: Willamette Valley, OR	Did you ever buy any of those 3" drivers on the Apex site?

19th February 2009, 04:20 AM	#3
BarryV diyAudio Member Join Date: Jan 2009 Location: Willamette Valley, OR	When I replied to this message (after searching) I was unaware that it was originally posted in the "Subwoofer" section. Perhaps a moderator could move it to a more appropriate section (Loudspeakers?)? Thanks, Barry

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