Hertz X 165 6.5" 2-Way Coaxial Speakers

The Hertz X 165 is a 6.5-inch, two-way coaxial car speaker designed for straightforward factory-speaker replacement. It combines a woofer and centrally mounted tweeter in one assembly, helping simplify an upgrade where the vehicle uses a standard round speaker location. Its 4-ohm impedance and 93.5 dB SPL sensitivity make it a practical choice for many conventional car-audio systems.

This speaker is suited to listeners who want more detail and stronger midbass presence from an OEM-style installation without changing to a separate-component system. The water-repellent pressed-paper cone and foam surround are engineered to support responsive output through the lower and mid frequency range. Hertz rates the X 165 for 55 watts continuous power handling and 220 watts peak power handling.

High frequencies are handled by a compact neodymium tweeter with a 24 mm PEI dome. Its faceplate is designed to support off-axis performance, an important consideration when speakers are mounted low in doors or in factory locations that do not point directly at the listener. This coaxial layout keeps the tweeter integrated with the woofer for a compact installation.

The woofer uses a 25 mm pure-copper voice coil and a high-density-flux ferrite magnet. This motor structure is intended to provide controlled operation under dynamic musical peaks while retaining the compact dimensions needed for common 6.5-inch mounting locations. The specified frequency response is 60 Hz to 21 kHz.

The X 165 fits naturally into a system using an OEM head unit or a modest aftermarket amplifier. It can be used as a direct speaker upgrade where mounting depth and cutout dimensions permit, while a compatible amplifier can provide additional clean power within the speaker's continuous rating. Confirm vehicle-specific fitment, mounting provisions, and wiring connections before installation.

Key Features

• Two-Way Coaxial Design: Integrates woofer and tweeter in one compact speaker assembly.
• PEI Dome Tweeter: Uses a 24 mm dome for high-frequency reproduction.
• Off-Axis Faceplate: Helps support more consistent response in factory locations.
• Water-Repellent Paper Cone: Provides a treated woofer cone for automotive use.
• Foam Surround: Supports sensitivity and low-frequency response.
• Ferrite Woofer Magnet: Uses a high-density-flux ferrite motor assembly.

Design & Installation

The X 165 uses a metallic-grey pressed-paper woofer cone with water-repellent treatment, a foam surround, and a PEI-dome neodymium tweeter. Its 25 mm pure-copper woofer voice coil is paired with an 80 mm ferrite magnet. The DIN-size basket receives abrasion-resistant dust-paint protection.

Check the vehicle's available cutout, mounting depth, mounting tabs, and speaker connector before ordering. The manufacturer drawing lists a 144 mm cutout diameter and 63 mm mounting depth, while adapters or vehicle-specific harnesses may be required depending on the application. Use appropriate polarity and avoid exceeding the 55-watt continuous power rating when pairing the speakers with an amplifier.