Polyfill placement matters. Learn why the rear wall is the most important area in a subwoofer enclosure, when side-wall polyfill helps, and how to avoid over-damping that can reduce output.
For many car audio systems, a Big 3 upgrade can vastly improve your vehicle’s electrical system. Amplifiers, subwoofers, speakers, and other components pull power and can stress your electrical components. An upgrade will allow more current flow to all of your stereo components, improving your electrical system by ensuring more consistent voltage. This upgrade entails replacing the three main cables in your electrical system with 4 gauge or 1/0 wires.
