subwoofer

[razulee]

What exactly does preamp subwoofer output mean? I have a junk home theater in a box that has an externally powered sub, powered from my receiver. I'm looking to buy a new system but I don't have the money to get everything I want all at once so I want to get the receiver now and use the speakers I have. My question is, will I be able to use my unpowered subwoofer with my new receiver that offers a preamp subwoofer output?
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