A great sound system needs a great capacitor: a high-demand audio setup can often place extra demand on your car's electrical system. When you need power, especially for booming bass and soaring highs, this 1.8 farad Pyle capacitor will have it at the ready. And best of all, it's been specially designed for marine applications - it's completely waterproof. And it's got all you need to make sure your system sounds awesome and stays safe: a blue digital voltage readout to show you how much power is available, electronic polarity protection, and an over voltage protection circuit. And this won't just make your system sound great - it looks great too, thanks to aluminum brushed case.