The Hertz CS 300 S4 is a 12-inch subwoofer from the Cento series, designed to bring deep, controlled bass to your vehicle's audio system. It handles a continuous power of 350 W and can reach peaks of 700 W, utilizing a 4 Ohm impedance to integrate easily with most amplifiers. To ensure clarity even during heavy use, it features a fluid dynamic optimization system and a cone geometry simulated via FEM to reduce acoustic distortions at high excursions. Built for durability and precision, the speaker uses a polypropylene cone paired with a nitrile rubber surround and a high-density flux ferrite magnet. Its internal construction is equally robust, featuring a 35 mm voice coil made of six layers of pure copper on a glass fiber support for high thermal resistance. With a mounting depth of 130 mm and a total weight of 4.844 kg, it offers a substantial build that remains versatile for different installations. This subwoofer is particularly well-suited for those building custom setups, as its compact size lacks a decompression hole, allowing you to shape the enclosure closely around the driver. It performs optimally in boxes starting from 32 liters and includes a terminal block that accepts cables up to 8 AWG. For the best results, you can protect the unit with an optional CG 300 grille, which attaches via the integrated high-strength ABS plastic gasket.