Hertz CX 130 5-Inch 2-Way Coaxial Speakers

The Hertz CX 130 is a 130 mm (5-inch) two-way coaxial speaker designed for vehicle locations that use compact factory-style speaker openings. It combines the woofer and tweeter in one assembly to simplify a speaker upgrade where separate component speakers may not be practical. Its 4-ohm impedance and 50 W continuous power handling make it suited to properly matched factory-replacement or aftermarket audio systems.

This model is intended for listeners who want clearer, more controlled sound from a compact coaxial speaker format. The 24 mm Tetolon dome tweeter is designed to reproduce upper frequencies, while the paper-mica woofer cone handles the lower and midrange range of the speaker's response. Hertz rates the CX 130 for a 65 Hz to 22 kHz frequency response.

The CX 130 uses a Semi Pressed Paper-Mica (SPP-M) cone, which combines semi-pressed paper with mica material. Hertz pairs it with a 25 mm woofer voice coil on an aluminum former and a high-density flux ferrite woofer magnet. These construction details support the speaker's specified power handling and excursion capability.

Its coaxial tweeter uses a 24 mm soft Tetolon fiber dome, a neodymium magnet, and ferrofluid cooling. The RHFC rotary high-frequency contour design allows the tweeter to be angled toward the listener during installation. Hertz also specifies a faceplate geometry intended to support more consistent off-axis response in typical vehicle speaker positions.

The Hertz CX 130 can be used as a direct upgrade in compatible 130 mm speaker locations or as part of a broader system refresh with a matched head unit or amplifier. Verify available mounting space and the vehicle's speaker opening before purchase, since factory fitment varies by vehicle. Optional grilles are available for installations where the speaker is not mounted behind an existing factory panel or grille.

Key Features

• Two-Way Coaxial Design: Combines woofer and tweeter in one compact speaker assembly.
• 130 mm Woofer: Fits applications designed for approximately 5-inch speakers.
• Tetolon Dome Tweeter: Uses a 24 mm soft fiber dome.
• RHFC Tweeter: Allows the tweeter to be angled toward listeners.
• SPP-M Cone: Semi-pressed paper and mica cone balances lightness and damping.
• 4-Ohm Impedance: Matches common car-audio speaker system configurations.

Design & Installation

The CX 130 uses a compact three-spoke basket, a rubber magnet cover, and a high-density flux ferrite woofer magnet. Its woofer uses a 25 mm aluminum-former voice coil, while the coaxial tweeter uses a neodymium magnet and soft Tetolon dome. The speaker's SPP-M cone is made from semi-pressed paper enhanced with mica.

Confirm the vehicle's speaker opening, mounting clearance, and factory-panel depth against the Hertz dimensional drawing before installation. Connect each speaker to a compatible 4-ohm amplifier or head-unit speaker output, observing correct polarity. The RHFC tweeter can be aimed toward the listening area where access and installation position allow, and optional grilles can be used for exposed mounting applications.