RCA cables use the same plug connectors as heavier subwoofer cables used to connect a sub to an audio-video receiver. This means an RCA audio cable can be used to connect the sub to the home theatre system, although the set-up works best over distances less than 10 feet. A subwoofer cable is shielded from electromagnetic interference and is made of a solid core rather than strands of wire such as that in a standard RCA audio cable. As a result, a subwoofer cable delivers a cleaner signal, especially over a longer distance, but an RCA cable will work and connect in precisely the same fashion.
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Insert the plug on one end of an RCA audio cable into the Input jack on the back of the sub, pushing all the way in until the plug seats with a click. If the cable is equipped with two plugs, connect only one of them.
Connect the plug on the opposite end of the cable to the Sub Out jack on the back of the AV receiver. Be sure to use the same colour-coded plug that was used on the opposite end for the sub connection if the cable has two plugs. For example, if connecting the sub with the white plug, use the white plug on the other end to connect to the receiver.
Turn on the sub and receiver, then adjust the volume control knob on the back of the sub to the desired level.
Tips and warnings
- Unplug a powered sub from the electricity while connecting the RCA cable.
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