Thursday 28 July 2016

What Is the Maximum Length for a Subwoofer Cable?

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Q In my current system, the receiver’s subwoofer output connects to an external amp linked to a passive subwoofer via a 20-foot length of speaker wire. The speaker wire runs under the floor and is tacked to the basement floor joists, where it crosses several household electrical wires. I would like to upgrade my subwoofer, but am having trouble finding one that is not self-powered. What concerns me about using a powered sub in my current setup is that the 20-foot coaxial cable run from the receiver to the sub would be susceptible to noise and interference. Are my fears unfounded? — David C.



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