Hertz CX 570 5x7" 2-Way Coaxial Speakers

The Hertz CX 570 is a 5x7-inch, 2-way coaxial speaker designed for vehicle speaker locations that need a compact full-range replacement. Its integrated woofer and tweeter arrangement simplifies an upgrade where separate component speakers are not practical. With a 4-ohm impedance and 70-watt continuous power handling, it can be used with compatible factory or aftermarket audio systems.

This speaker is intended for listeners replacing worn factory 5x7-inch speakers or building a straightforward aftermarket system. The 55 Hz to 22 kHz frequency-response rating covers bass, midrange, and treble reproduction from a single speaker location. Its 93.5 dB sensitivity rating supports useful output from moderate-power amplification.

A 24 mm Tetolon dome tweeter handles high frequencies and is cooled with ferrofluid. Hertz uses its RHFC Rotary High Frequency Contour design to allow the tweeter to be directed toward the listening position. The high-frequency system is also adjustable to help account for different off-axis factory speaker placements.

The woofer uses an SPP-M semi-pressed paper and mica cone, selected for a balance of low mass and damping. A 25 mm woofer voice coil uses an aluminum former, while the woofer motor uses a high-density-flux ferrite magnet with low-carbon polar plates. The four-spoke basket and rubber magnet cover are designed to help limit unwanted vibration.

The CX 570 works well as a direct speaker-location upgrade where a 5x7-inch opening and adequate depth are available. Its 65.5 mm mounting depth and 182 x 126.5 mm cutout requirement should be checked against the vehicle before purchase. For a more complete system, it can be paired with compatible amplification, a properly configured source unit, and vehicle-specific mounting or wiring accessories as needed.

Key Features

• 2-Way Coaxial Design: Combines woofer and tweeter functions in one speaker assembly.
• 24 mm Tetolon Tweeter: Provides high-frequency reproduction with a soft fiber dome.
• RHFC Directable Tweeter: Lets the tweeter be aimed toward the listening area.
• SPP-M Woofer Cone: Semi-pressed paper and mica construction balances damping and weight.
• 70W Continuous Handling: Supports compatible aftermarket amplification and source-unit power.
• 4-Ohm Impedance: Matches many common car-audio speaker outputs.

Design & Installation

The CX 570 uses a high-density-flux ferrite woofer magnet, a neodymium tweeter magnet, and a Tetolon dome. Its semi-pressed paper and mica woofer cone is paired with a 25 mm aluminum-former voice coil. The compact four-spoke basket includes a rubber magnet cover intended to damp spurious vibrations.

Confirm the available opening, mounting depth, and panel clearance before installation. The speaker measures 221 x 139.5 mm overall, requires a 182 x 126.5 mm cutout, and has a 65.5 mm mounting depth. Use correct polarity when connecting speaker wire, and verify whether vehicle-specific brackets, harness adapters, or grilles are needed for the intended location.