You'll need a subwoofer cable to connect your powered subwoofer in your receiver's subwoofer output. A lot of stereo receivers and amps even have subwoofer outputs. To find out more, study our posting on subwoofer set up. Generator Phase Up Transformer [Graphic Source: Electrotechnik]A part of The explanation for this https://opticiansnearme99887.blog-mall.com/30429181/5-simple-techniques-for-portable-speaker