The Hertz DCX 165.3 is a 2-way coaxial car speaker from the Dieci series, designed to provide a clear and expressive audio experience without requiring extensive modifications to your vehicle's factory mounting locations. These 165 mm speakers feature a water-repellent pressed paper cone and a durable TPU surround, which helps maintain sound quality and resist resonance. A 15 mm PEI dome tweeter is integrated into the design, ensuring that the high-frequency component does not protrude beyond the speaker's overall dimensions for a cleaner installation. With a sensitivity of 93 dB, these speakers can produce loud, full sound even when powered by low-output head units. They handle a continuous power of 60 W and a peak of 120 W, maintaining a frequency response from 60 Hz to 21 kHz. The internal build focuses on longevity and performance, utilizing a pure copper voice coil on a conex former and low carbon content plates to improve heat dissipation and magnetic permeability. To withstand harsh environmental conditions, the basket is finished with abrasion-proof dust paint and the magnet is shielded by a butyl rubber protective cover. The mounting depth of 64 mm and a minimal flange diameter make them a versatile choice for drivers looking to upgrade their factory audio system with a reliable, high-fidelity solution that fits easily into standard DIN sizes.