“My current subwoofer has a single black RCA input. This system has two a L and R. Why does a subwoofer have a left and right? ?”
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Hey there, great question as this is confusing when you see an L/R on a subwoofer. The answer is, some older amps or some amps that are only sending a pre-out signal may still use an L/R input for a sub, and thus would need the two-part cable to run the sub. However, if you look on the back next to your L input, you'll see an L/LFE. This is the "low frequency effects" input and can receive the entire signal through one cable. Think of the L/R inputs as redundancy or extra in case you had an amp that needed to send two signals. However, any receiver that has a single sub out channel this wont be a problem and you can use a single cable.
Sorry, there was a problem. Please try again later.Depends on your receiver and if it supports two subwoofers. If your receiver support L & R and you have two subs, you connect them to the coordinating plug. Otherwise you only need one cable.
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