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If you have premium speakers, you may wonder how to connect multiple subwoofers to a theater receiver. Top-tier subwoofer output should provide powerful bass frequencies for your music or movie audio setup. That said, you can have a smoother bass response and enhanced sound quality with a dual-subwoofer connection. So, if you want a powerful bass impact in your primary listening position, learn how to hook up two subwoofers.
Your audio setup will take up space, especially with surround speakers and multiple subwoofer channels. When learning how to set up subwoofers, your placement options will affect the speakers’ low-frequency output and audio levels. So, follow the subwoofer placement guidelines in our article on how to hide a subwoofer for the best results.
See our guide on connecting subwoofers to a TV, especially if you don’t have an AV receiver. Understanding the connection types, you may encounter can help tell if a subwoofer is blown.
Look at the back of your AV receiver and spot the subwoofer outputs. Most modern theater receivers feature at least two subwoofer outputs.
Install the first set of speaker cables in the receiver and run it to your first subwoofer.
Repeat step two with your second subwoofer. Ensure the speaker cable connections are secure and test your audio setup.
If your receiver only offers one subwoofer output, you can use the output connection on your subwoofer. Connect the subwoofer cable to the first subwoofer.
Spot the subwoofer output terminal on the connected subwoofer. Run a single RCA cable from the connected subwoofer to the subwoofer input on the second subwoofer.
If your AV receiver only offers a single subwoofer connection, you can create two parallel signals with an RCA Y-cable adapter. Plug the adapter into the receiver into the subwoofer speaker terminal.
Run a subwoofer cable from the splitter to both subwoofers. Ensure your speaker wire is long enough to reach the required speaker distances for your setup.