using speaker level output from audio system to line level powered subwoofer

Chiiron Xo

Apr 22, 2016
So, I have a Panasonic SA-PT467 audio system the subwoofer is pre-powered and uses a standard speaker level cable.

I want to upgrade the subwoofer to a self-powered Auna Line 300-SW-BH because this subwoofer is self-powered it uses a line level RCA for the input.

What I want to know is if it is possible to use the speaker level cable coming from subwoofer channel on the audio system to connect it to the line level input on the sub, I am worried that it may blow something on the Subwoofer since the speaker level audio system outputs a lot of power down the cable whereas the sub only needs a low power signal.

Do I need to add anything onto the cable inbetween the system and sub to step down the power? If so please help me.

Thanks, Lucas.