A subwoofer with speaker-level inputs is especially easy to connect to your older amplifier or receiver! To do so, just connect to the speaker outputs on the source unit using speaker wire and then to the matching inputs on the subwoofer. You can even power speakers from the amp or receiver at the same time.

Can you connect a subwoofer to an amp without sub OUT?

The best way to hook up a subwoofer to an amplifier with no dedicated subwoofer out is to use a Y splitter cable.