HERTZ DCX100-3

The Hertz DCX100-3 is a 4-inch, 2-way coaxial car speaker designed for vehicles that use compact factory speaker locations. It combines a woofer and centrally mounted tweeter in one assembly, helping simplify an upgrade where space for separate components is limited. Its 4-ohm nominal impedance makes it suitable for many conventional car-audio speaker circuits.

This model is intended for listeners who want a direct-fit-size replacement with clearer high-frequency detail and controlled midrange performance from a small speaker format. The 100 mm woofer uses a water-repellent pressed-paper cone, while the 15 mm PEI dome tweeter handles upper-frequency reproduction. A 70 Hz to 21 kHz frequency-response rating reflects its role as a full-range coaxial speaker rather than a dedicated bass driver.

With 30 watts continuous power handling and 60 watts peak power handling, the DCX100-3 can be matched to an appropriately rated factory radio or modest external amplifier. Its 92 dB SPL sensitivity rating supports useful output from moderate amplifier power. For stronger low-frequency extension, pair it with larger speakers or a dedicated subwoofer system.

The speaker uses a high-density-flux ferrite woofer magnet and a neodymium tweeter magnet. Its 25 mm pure-copper woofer voice coil is wound on a Conex former, and the TPU surround supports cone movement while helping control resonance. An integrated passive crossover directs the appropriate frequency range to the tweeter and woofer.

The Hertz DCX100-3 is a practical option for front, rear, or auxiliary 4-inch speaker positions when the vehicle mounting location and available depth are compatible. Its 43 mm mounting depth and 94 mm mounting-hole diameter should be checked against the factory opening before purchase. Grilles are not included, so installations without factory grilles may require separately sourced protection.

Key Features

• 4-Inch Coaxial Format: Combines woofer and tweeter in one compact speaker.
• 2-Way Design: Reproduces midrange and high frequencies through dedicated drivers.
• Water-Repellent Paper Cone: Supports reliable operation in typical vehicle environments.
• PEI Dome Tweeter: Provides high-frequency reproduction from a compact 15 mm dome.
• 4-Ohm Impedance: Matches many standard car-audio speaker circuits.
• Integrated Passive Crossover: Routes frequencies between the woofer and tweeter.

Design & Installation

The DCX100-3 uses a DIN-size basket with abrasion-resistant dust paint, a water-repellent pressed-paper woofer cone, TPU surround, and a PEI tweeter dome. Its woofer uses a high-density-flux ferrite magnet, while the compact tweeter uses a neodymium magnet. Tin-plated high-current terminals and silver-plated lead wires are incorporated for electrical connection and durability.

Confirm that the vehicle accepts a 4-inch speaker and provides at least 43 mm of mounting depth before installation. The specified mounting-hole diameter is 94 mm, while the overall frame dimension is 129 mm at its widest mounting-tab area. Observe speaker polarity, use secure wiring connections, and retain factory grilles or add suitable grilles because no speaker grilles are supplied.