How do you hook up a powered subwoofer to an amp?

While a powered subwoofer (active subwoofer) does not need to be connected to an amplifier since its amp is built-in, you can connect a powered sub to an amp for data transmission only. To do this, connect the two with RCA cables and plug the powered sub into the wall for its power source.

Does a powered sub need a receiver?

As a side benefit, all a powered subwoofer needs is a single cable connection from a home theater receiver or surround sound preamp/processor line output (also referred to as a subwoofer preamp output or LFE output).

How do I convert my passive subwoofer to powered?

0:412:59DIY 10$ Active Subwoofer - YouTubeYouTube