Hooking Up a Subwoofer Without an Amplifier Mount your subwoofer in your preferred location. Next, reroute the stereo and power supply cables to the subwoofer and connect them. If your audio system has an outlet for your subwoofer, connect this as well. Once installed, you need to learn how to get the best sound.

How do you power a subwoofer at home?

To power a car subwoofer at home, just convert your AC voltage at home into DC voltages by using computer power supply or any AC to DC converter. As you know the subwoofer installed in your car works on battery that delivers 12 volts to all your audio setup.

Can you put a home theater sub in your car?

Since a home subwoofer is designed as an active subwoofer, it comes with an inbuilt amplifier thats powered by 120 or 240 volts AC. Thus, you cannot use it in your car as it cant work with 12 volts DC. Although you can buy a DC to AC voltage inverter, such a setup wont be very efficient.