I have a small subwoofer I'm trying to recone, I went out and bought all the parts I needed, but all the single voice coils available were too small, so I got a double voice coil, how could I wire this coil to make it work as a single voice coil?
You have a choice of paralleling the voice coils or series wiring the voice coils. SO 8ohm coils become either 4ohm or 16ohm SVC, or 2 4 ohm coils turn into 2ohm or 8 ohm SVC.
Subwoofer Wiring Diagrams
Subwoofer Wiring Diagrams
Thank you, now how do I do this, do I connect the two wires on the same side of the coil together, to make the 4ohm coils into 2ohm?
How do I go about testing the resistance of the coil? I hook it up to my multimeter set to ohms but nothing happens.
dvc coil measurements
Hi there: A dvc will have two sets of connectors, one located on each side of the basket. Each of the two coils will be factory hooked-up to one of the of the connector sets. There is no faqctory connection between the two sides.
First test your meter for operation by shorting the leads together, you should see 0 ohms, if the meter is working (older VOM meters need to be zero adjusted). Now connect the a meter lead to the connectors of one set (one side of the basket) If the coil is intact, read the ohms. (not good if there is 0 ohms) Do the same for the other side. (hopefully you will get a reading on one side, if so you can use the speaker as is with the one coil, at the measured Re). ...regards, Michael
Hi there: A dvc will have two sets of connectors, one located on each side of the basket. Each of the two coils will be factory hooked-up to one of the of the connector sets. There is no faqctory connection between the two sides.
First test your meter for operation by shorting the leads together, you should see 0 ohms, if the meter is working (older VOM meters need to be zero adjusted). Now connect the a meter lead to the connectors of one set (one side of the basket) If the coil is intact, read the ohms. (not good if there is 0 ohms) Do the same for the other side. (hopefully you will get a reading on one side, if so you can use the speaker as is with the one coil, at the measured Re). ...regards, Michael
Thanks for that, I have one more question, for about 120-150 watts RMS should I use 1 spider or two?
They're this kind of spiders.
They're this kind of spiders.
An externally hosted image should be here but it was not working when we last tested it.
Out of curiosity, do you have a rig that can measure T-S parameters? You will probably end up with a woofer that behaves differently, and you will need to account for the changes in order to use the woofer effectively.
I don't even know what T-S is, so I guess I don't have the equipment to test it, and it doesn't matter if it ends up different, as long as it sounds decent.
I'm thinking at this point it might be worth it just to buy another woofer... How did you plan to use it?
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