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Need help identifying Horn tweeters

xpert54

xpert54

Lost in Music
I pulled a set of plastic horn tweeters out of a set of DIY speaker boxes. They have the number 947 printed on the back and have motorola cast in the back of the housing.

I took the tweeter apart and it has a 2" cone driver in it and the part number inside the housing is 42-83720-JO1 or or it could be 42-83730-J0-1. I was thinking about using these as a midrange horn for a set of DIY speakers.

I can find no info on these. As Motorola bought CTS I thought they might have been a CTS Horn but so far no info. There is a built in resistor inside the housing where the speaker is mounted. Any one know where I might get some info on these.
 
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Same Problem

Did you ever find a replacement or any info on these I have the same ones in a p.a system I have made by epiphone model electar.
I have 2 one which is blown one has 622 on the back and the other had 632


To help get more people to see the post I will post all the corresponding numbers from the system it was installed in.

MO15 120W 8Ohm
42-83730J01
15-83728J01
15E83729J01

CD&M

Piezo Horn driver Tweeter
3 1/4 x 7 3/8

matched with Epiphone Electar system EPM 8
 
I Am Wondering You Think It should be one that can take 120w max 8 ohms?
I can find ones i can put in there i only fear that it wont be loud enough or to quiet.

I mean do you think this would work?
http://www.savinglots.com/lotprod.asp?item=TW125

Or These
http://cgi.ebay.com/ws/eBayISAPI.dl...f87f5ae&itemid=350278882361&ff4=263602_263622

Im not afraid to modify the hole if the speakers will work.
Also not %100 sure on the 4-8 ohms impedance on the first pair.
what do I do to make sure they run at 8 cause my system that runs them is made for 4 ohms at 300w and 8 ohms at 200w so pretty much if it send 300w I will be looking for new speakers too.

As you can see i'm pretty unsure on the whole thing. Just wanna make sure its a perfect match and That I wont have to add a potentiometer to the line or something.
 
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