Old radio, new speaker conflict. Any help?? - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

 
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post #1 of 8 (permalink) Old Oct 18th, 03, 7:06 PM Thread Starter
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I clicked on Joe Hubka's web site link and the question link but it keeps saying not available.

Deos anyone know how to reach him?

I have a 1970 delco radio that says must be used with 8-10 Ohm speakers but all the new style speakers are 4 Ohm.
Joe radio forum says DO NOT NOT USE THE NEW speakers or it will ruin the radio.

Does anyone think that soldering a 4 ohm resister in front of the speaker will give me the same thing as having an 8 ohm speaker??? After all ohm's = resistance.
If I hook two 4 ohm speakers in series I will get the desired 8 ohm's, BUT won't I lose the left right balance??


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post #2 of 8 (permalink) Old Oct 18th, 03, 7:51 PM
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No a resistor is simple resistance in ohms. The resistance rating of a speaker is impedance and is a function of frequency and inductive reactance. Both are expressed in ohms but are very different. You can use two 4 ohm speakers in series.

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post #3 of 8 (permalink) Old Oct 18th, 03, 9:05 PM
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Y.O.and others used to have in their catalogs speakers that would work and fit in the original openings

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post #4 of 8 (permalink) Old Oct 18th, 03, 10:41 PM Thread Starter
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Thanks guys,

Elree, if I do hook up in series will lose laft right balance?
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post #5 of 8 (permalink) Old Oct 18th, 03, 10:42 PM Thread Starter
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Thanks guys,

Elree, if I do hook up in series will lose laft right balance?
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post #6 of 8 (permalink) Old Oct 18th, 03, 11:18 PM
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In each location that originally had 1- 8 ohm speaker you would use 2- 4 ohm speakers in series. It's not very practical. The best thing to do is locate 8 or 10 ohm speakers.

If you are putting them in your dash one thing to be aware of is that big magnets can have an undesirable effect on the factory tach.

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post #7 of 8 (permalink) Old Oct 19th, 03, 10:52 AM
 
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Original speakers can be re-built if the paper cone is dried out.
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post #8 of 8 (permalink) Old Oct 19th, 03, 8:36 PM
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I picked up a rebuilt 10 ohm speaker for my radio on Ebay and it works really well. The price wasn't bad either. Do a search.

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