Help identifying a Jensen speaker [message #4048] |
Fri, 16 April 2004 09:35 |
woody96
Messages: 107 Registered: May 2001
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Senior Member |
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Need some help---just got a Jensen 15" speaker....greenish frame.....lavender colored bell cover over very large magnet....speaker codes....
220837 LM1 152 EM1520.C8505 3
Can anyone tell me other than the date, what this speaker was originally designed for and use? Alnico magnet or ceramic?
THX!!!
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Re: Help identifying a Jensen speaker [message #4075 is a reply to message #4073] |
Mon, 19 April 2004 08:19 |
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Do you recommend that I have it re-coned? I have talked to and heard that the Speaker Doctor in Charlotte is excellent---ET recommended! Anyways, the speaker has a tear in the cone, but amazingly, dosn't seem to be affecting the sound much---it sounds GOOD as is!
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Re: Help identifying a Jensen speaker [message #4083 is a reply to message #4082] |
Wed, 21 April 2004 09:04 |
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Well, I have a speaker re-coner in Charlotte (Speaker Doctor) offering to do the re-cone for $50......it has a tear near the rim, and the material is gone---about 2" square.....anyways, I put some clear package tape over the tear---helped just fine----speaker sounds very good! I hate to re-cone and lose the original voice coil......this will change the tone/sound if I replace the voice coil too right---???
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Re: Help identifying a Jensen speaker [message #4088 is a reply to message #4083] |
Thu, 22 April 2004 07:39 |
stevem
Messages: 4758 Registered: June 2004 Location: NY
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Senior Member |
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Hi, the voice coil comes attached with the replacment cone.Many of these old speakers, when they start to dry rot, fall apart at one rate or another when they are used. When the accordain section, or rim as you call it gets weak enough, then gravity will cock the cone and the voice coil will start to rub. If not that then the speaker will start to fart out at a given volume level. I guess I would get it reconed, but I would make it a point to find out if the replacement cone is made from 3skp type cone paper like the original. Or that the new cone will come close to the original tone. The original thin cone paper gave a early and nice distortion when pushed, of course for bass then a replacement cone of thicker paper may be better for you.
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