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Need Data on Eminence E12107-8 [message #10079]

Wed, 10 December 2008 14:26

Shrapnel
Messages: 2
Registered: December 2008
Location: Arkansas

Junior Member

I need data on the following speaker.
Eminence themselves are no help due to its age.
I do know it was made by Eminence (67) and made in the 24th week of 1969 (6924) and 8-Ohm impedence.

This speaker was given to me gratis, and all I know is what I've already stated, and the dustcap is chromed. Any help would be appreciated.

Eminence
E12107-8
67-6924

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Re: Need Data on Eminence E12107-8 [message #10093 is a reply to message #10079]

Thu, 11 December 2008 12:38

stevem
Messages: 4745
Registered: June 2004
Location: NY

Senior Member

What size driver is it?
Most 12" Kustom ciramic magnet drivers handled 50 to 60 watts and had a frequency range of 60Hz to 5000Hz.
If it had a alnico magnet like most of the 12" drivers used in the PA columes the drivers where rated at 25 watts.

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Re: Need Data on Eminence E12107-8 [message #10094 is a reply to message #10093]

Thu, 11 December 2008 13:20

Shrapnel
Messages: 2
Registered: December 2008
Location: Arkansas

Junior Member

It is indeed a 12" speaker. It has just the single magnet that inserts into the voice coil, no outer magnet ring other than what may be created with the method of mounting the magnet. (has the ring seal for the voice coil) (see ASCII art below, HOPEFULLY comes out right)

/---------\
|. |Mag| .|
| /|net|\ |

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Re: Need Data on Eminence E12107-8 [message #10098 is a reply to message #10079]

Fri, 12 December 2008 06:06

stevem
Messages: 4745
Registered: June 2004
Location: NY

Senior Member

It looks like a Alnico magnet driver then.

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Re: Need Data on Eminence E12107-8 [message #10107 is a reply to message #10079]

Tue, 16 December 2008 08:16

stevem
Messages: 4745
Registered: June 2004
Location: NY

Senior Member

This ceraimic and alnico magnet thing with kustoms must be quite a story, and I would love to gain some insight into why they chose to use a higher costing alinco magnet drivers in only some model amps and PA cabinets.
The only thing I can come up with is the weight issue difference came into play, since a alnico magnet driver is lighter. As a reference I give both of my 4-10" combo amps as use the alnico magnets as do some 2-12" combo amps, and all the 4-12" PA columes. I do not know about the 4-10" PAs, but I would think that they would follow the same pattern.

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Re: Need Data on Eminence E12107-8 [message #10108 is a reply to message #10079]

Tue, 16 December 2008 08:18

stevem
Messages: 4745
Registered: June 2004
Location: NY

Senior Member

I should also make note that the much used in kustom amps Altec 418B 15" speaker is a alnico magnet model also.

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