Hertz X130 5.25" Two-Way Coaxial Speakers

The Hertz X130 is a pair of compact two-way coaxial car speakers designed for factory-style replacement installations. Its 130 mm nominal woofer size fits applications that use this smaller round speaker format. The coaxial layout combines the woofer and tweeter in one assembly to simplify an audio-system refresh.

These speakers are intended for drivers who want clearer, more balanced sound from a factory head unit or a modest aftermarket system. Hertz rates the X130 at 40 watts continuous and 160 watts peak power handling at 4 ohms. With 93 dB SPL sensitivity, it is designed to produce useful output without requiring a high-power amplifier.

The X130 uses a water-repellent pressed-paper woofer cone and foam surround. This combination is engineered to support responsive midbass and low-frequency extension within the speaker's 60 Hz to 21 kHz frequency-response range. The 24 mm PEI-dome tweeter handles high-frequency reproduction from the same speaker location.

A specially shaped tweeter faceplate is designed to support off-axis performance, which is useful in many factory door and dash locations where speakers do not point directly at the listener. The woofer uses a 25 mm pure-copper voice coil and high-density-flux ferrite magnet. These construction details support the speaker's specified power handling and compact installation format.

The Hertz X130 is a practical option for replacing worn or basic factory speakers while retaining the existing radio. Its DIN-size basket is intended to make fitting into compatible factory openings more straightforward. Before installation, compare the vehicle opening and available depth with the published X130 dimensions.

Key Features

• Two-Way Coaxial Design: Integrates woofer and tweeter in each speaker assembly.
• 40W RMS Handling: Matches modest factory or aftermarket power.
• 93 dB Sensitivity: Supports efficient output from compatible head units.
• PEI Dome Tweeter: Provides dedicated high-frequency reproduction in a compact format.
• Water-Repellent Paper Cone: Helps protect the woofer cone from moisture exposure.
• Off-Axis Tweeter Faceplate: Supports more even response in factory mounting locations.

Design & Installation

The X130 combines a metallic-grey, high-stiffness pressed-paper cone with a foam surround, ferrite woofer magnet, and neodymium tweeter magnet. Its basket is protected by abrasion-resistant dust paint. The woofer voice coil is specified as pure copper and measures 25 mm in diameter.

Use the X130 where the vehicle accepts a 130 mm nominal round speaker and has sufficient clearance for the published dimensions. Verify the 116 mm B dimension, 59 mm C dimension, and 52 mm D dimension against the vehicle before ordering. Connect each speaker to a compatible 4-ohm channel, and use power appropriate for its 40-watt continuous rating.