Question about fire hazard with Subwoofer wiring... - AVS Forum
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post #1 of 4 Old 07-16-2012, 08:41 PM - Thread Starter
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Good evening,

I have a question related to transducers/buttkickers, but I figure the subwoofer crowd would be able to educate me.

I am setting up some buttkickers/shakers in my home theatre room. For this, I have purchased a 250w subwoofer plate amp, that will drive the four 50W shakers.

Now, I have the following 2 options for wiring:
1) Place the plate amp next to my receiver (connected via woofer/coax cable to the LFE), and then run 15 feet of 16 ga. speaker wire UNDER THE CARPET to the seats, and wire to the shakers. or....
2) place the plate amp next to the chairs, wire all shakers with speaker wire (no need to run under carpet here), but then run 15ft of woofer/cable from the plate amp to the receiver UNDER THE CARPET.

Is one method safer than the other? Does the speaker wire in scenario (1) pose a hazard? How about the coax wire in scenario (2)? I've always been under the impression that speaker wire in general carries very low voltage/signal and not really a fire hazard, but since I have seen people use very heavy gauge speaker wire to wire the woofer 'cones', it makes me wonder.

Thanks for any input.

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post #2 of 4 Old 07-16-2012, 09:03 PM
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Speaker cables carry fairly low voltage but higher current because of the low impedance load of the speaker. It is not something that should pose a fire risk. However, I would be a bit concerned of the wear a speaker cable might experience under a carpet. I would takes steps to protect the speaker wire under the carpet such as having some sort of duct to keep abrasion to a minimum.
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post #3 of 4 Old 07-17-2012, 03:50 AM - Thread Starter
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Diver, is this also true of the signal on the coax cable path?

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post #4 of 4 Old 07-17-2012, 05:22 AM
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Even moreso, a subwoofer signal is not amplified and of a low voltage, it carried very little current as well. A subwoofer cable will never cause a fire.
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