Hertz X170 6.75" 2-Way Coaxial Speakers

The Hertz X170 is a pair of 6.75-inch two-way coaxial car speakers designed for straightforward factory-speaker replacement. It combines a 170 mm woofer and centrally mounted tweeter in each speaker, helping simplify an upgrade where separate component-speaker mounting is not desired. Its 4-ohm design is suited to common aftermarket and factory car-audio speaker circuits.

These speakers are intended for listeners who want clearer, fuller sound from factory locations while retaining a practical installation format. The water-repellent pressed-paper woofer cone and foam surround are designed to support low-frequency output from a conventional door or rear-deck location. With 93.5 dB SPL sensitivity, the X170 is specified to perform effectively with OEM head-unit power while also accommodating modest external amplification.

The X170 uses a 24 mm PEI-dome tweeter with a neodymium magnet to handle high frequencies. Its tweeter faceplate is engineered for off-axis listening, an important consideration when speakers are mounted low in doors or otherwise not aimed directly at occupants. This coaxial arrangement keeps the woofer and tweeter together for a compact replacement solution.

A 25 mm pure-copper woofer voice coil and high-density-flux ferrite motor support the speaker's 50-watt continuous and 200-watt peak power ratings per speaker. The specified 60 Hz to 21 kHz frequency response covers the main midbass, midrange, and treble range for a full-range speaker position. Mechanical excursion is rated at ±3 mm.

The Hertz X170 can be used as a direct speaker upgrade in systems that retain the factory radio or as part of a larger aftermarket system with an amplifier, sound treatment, and upgraded source unit. Its DIN-size basket is intended to ease installation in many conventional speaker openings. Confirm vehicle-specific mounting diameter, mounting depth, wiring connector, and adapter requirements before purchase.

Key Features

• Two-Way Coaxial Design: Combines woofer and tweeter in each speaker for a compact full-range upgrade.
• 50W Continuous Power: Supports 50 watts RMS per speaker for compatible amplified systems.
• PEI Dome Tweeter: Uses a 24 mm dome for high-frequency reproduction.
• Off-Axis Tweeter Faceplate: Helps maintain response when door-mounted speakers are not directly aimed.
• Water-Repellent Paper Cone: Treated woofer cone is designed for automotive speaker environments.
• Foam Surround: Supports woofer movement and low-frequency response.

Design & Installation

The X170 uses a metallic-gray, high-stiffness pressed-paper cone with water-repellent treatment, a foam surround, and a high-density-flux ferrite woofer magnet. Its compact neodymium tweeter uses a PEI dome, while the DIN-size basket has an abrasion-resistant dust-paint finish. Each speaker weighs 0.56 kg (1.23 lb).

Verify the 140 mm (5.51 in.) mounting cutout and 45 mm (1.77 in.) top-mount depth against the vehicle's available space before installation. Use vehicle-specific mounting brackets or wiring adapters when required, and observe speaker polarity during connection. For amplified use, match the system to the speaker's 4-ohm impedance and 50-watt continuous power rating per speaker.