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Multi-Way Conventional loudspeakers with crossovers

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Old 17th February 2005, 09:38 AM   #1
rick57 is offline rick57
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Join Date: Dec 2002
Location: dry ol Melbourne Australia
Default Connect cable to driver, donít sizzle voice coil?

A friend suggested that when wiring up a speaker, if you solder (350 degrees ) cable directly onto the blade connectors on the back of a driver, in the 20-30 secs while doing so, the heat that transfers up the driverís Ďinternal wireí and onto the voice coil, is not at all good for the VC.

Opinions, experience?
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Old 17th February 2005, 09:57 AM   #2
Netlist is offline Netlist  Belgium
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Apply solder to the blades and the cable separately. Plenty on the cable. The wires should be fully soaked with tin.
Then, when the cable is still hot, solder it onto the blade. It shouldnít take more then 5 seconds. This will dramatically reduce the heat transferred to the voice coil.

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Old 17th February 2005, 11:41 PM   #3
AndrewJ is offline AndrewJ
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Join Date: Sep 2001
Firstly, if it takes you 20-30 seconds to solder a wire to a terminal, I suggest you find a different hobby or get in a lot of practice first !
Secondly, take a close look at how the braid is connected to the blade. It is soldered !
The problem is not heat travelling to the voice coil (it won't really do this, and besides the coil can withstand much higher temperatures than the braids). The problem is that if you take too long you will melt the solder junction of the braid to the blade.
So practice till you can make a good connection in 5 seconds or so then go for it as netlist suggested.
I have made hundreds of such connections and never had a problem.

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Old 18th February 2005, 08:52 AM   #4
rick57 is offline rick57
diyAudio Member
Join Date: Dec 2002
Location: dry ol Melbourne Australia
Solder blades and cable separately, and practice. I think I can do that.

Thanks guys!

BTW Netlist, love your countryís beer! P*sses on most Aussie beer (though a Coopers is usually a damn fine drink).
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