Hertz DCX 130.3 5.25" 2-Way Coaxial Speakers

The Hertz DCX 130.3 is a pair of 5.25-inch, two-way coaxial car speakers designed for replacing factory speakers or building a straightforward audio upgrade. Each speaker combines a woofer and tweeter in one chassis, helping simplify installation where separate component-speaker mounting is not practical. With 4-ohm impedance and 40 watts RMS power handling per speaker, they are suited to compatible factory radios or modest external amplification.

These speakers are intended for listeners who want clearer full-range reproduction from a compact 130 mm speaker format. The 65 Hz to 21 kHz frequency response covers bass and midrange fundamentals along with high-frequency detail. A 93 dB sensitivity specification supports useful output from lower-power car-audio systems when properly installed.

The DCX 130.3 uses a water-repellent pressed-paper woofer cone with a TPU surround. This combination is paired with a PEI dome tweeter that uses a neodymium magnet. The coaxial design includes an integrated crossover to direct the appropriate frequency range to each driver.

Its high-density-flux ferrite woofer magnet and 25 mm woofer voice coil support controlled operation within the rated power range. The 15 mm tweeter is positioned concentrically to keep the installation compact. Hertz specifies a 59 mm mounting depth, making vehicle-specific depth and clearance checks important before purchase.

The DCX 130.3 can be used as a direct replacement where a 5.25-inch-class speaker is appropriate, or as part of a balanced front or rear speaker upgrade. It works with compatible 4-ohm speaker wiring and should be matched to a source unit or amplifier that stays within its continuous power rating. Optional Hertz DG 130.3 grilles are available for installations that require speaker protection or a finished appearance.

Key Features

• Two-Way Coaxial Design: Integrates the woofer and tweeter into one compact speaker assembly.
• 40-Watt RMS Handling: Supports compatible factory radios and moderate-power amplifier channels.
• 4-Ohm Impedance: Matches the common nominal impedance used in many car-audio systems.
• Pressed-Paper Woofer Cone: Uses water-repellent treated paper for the woofer diaphragm.
• PEI Dome Tweeter: Reproduces upper frequencies through a compact 15 mm dome.
• Integrated Crossover: Directs frequencies between the woofer and tweeter within each speaker.

Design & Installation

The DCX 130.3 uses a high-density-flux ferrite woofer magnet, neodymium tweeter magnet, TPU surround, and PEI tweeter dome. Hertz also specifies a DIN-size basket with abrasion-resistant dust paint, tin-plated high-current terminals, and silver-plated lead wires. The speaker has a 59 mm overall depth and weighs 0.56 kg per speaker.

Confirm the vehicle's speaker opening, mounting depth, mounting-hole pattern, and clearance behind the panel before installation. Connect each speaker to a compatible 4-ohm speaker output and observe correct polarity. The pair can be driven by a compatible factory head unit or an amplifier channel rated appropriately for 40 watts RMS per speaker; grilles are optional rather than included.