Description

Hertz MPX165.3 – 6.5″ 2-Way Coaxial Car Audio Speaker Set

The Hertz MPX165.3 car audio coaxial speakers are designed for a detailed sound stage and natural timbre. Featuring a concentric coaxial tweeter aligned with the woofer, these speakers provide a single, linear-phase emission point for an immersive audio experience. The “Center Tuning Duct” geometry of the tweeter enables a low resonance frequency, while damping materials inside ensure smooth acoustic output. An acoustic lens enhances off-axis response, ideal for door installations, and the 36 mm woofer delivers controlled, deep bass.

Technology

Boundary Free Surround: This design increases the cone’s emission surface, moving more air for greater acoustic pressure. Crafted from high-purity IIR butyl rubber, it ensures thermal and mechanical linearity.

Key Features

Concentric Coaxial Tweeter: Aligned with the woofer for a unified emission point, creating a realistic sound stage.
Tweeter Support as Rear Chamber: Low Fs for smooth high-pass roll-off, enabling low crossover points.
36 mm Pure Copper Woofer Voice Coil: Wound on a polyamide former for dynamic, distortion-free sound and high power handling.
Pressed-Pulp Cone with Cotton Fibers: Stiff yet lightweight for an extended frequency range, with phase-consistent geometry to complement the tweeter.
Boundary Free Rubber Surround: Enhances efficiency and expands midbass response.
Over-Sized Ferrite Magnet: Paired with low-carbon iron plates to reduce distortion at high power levels.
Low-Mount Aluminum Alloy Basket: Acoustically transparent with diamond-cut detailing and Hertz logo.
Anti-Vibration Rubber Magnet Cover: Minimizes unwanted vibrations.

Technical Specs

Component Type: Coaxials
Size: 165 mm (6.5 in.)
Continuous Power Handling: 100 W
Peak Power Handling: 200 W
Impedance: 4 Ω
Woofer Voice Coil Diameter: 36 mm (1.42 in.)
Tweeter Voice Coil Diameter: 20 mm (0.8 in.)
Frequency Response: 45 Hz – 21.5 kHz
Woofer Magnet Dimensions: 90 x 45 x 17 mm (3.54 x 1.77 x 0.67 in.)
Tweeter Magnet Dimensions: 29.5 x 22 x 4 mm (1.16 x 0.87 x 0.16 in.)
Speaker Weight: 1.27 kg (2.8 lb)
Woofer Magnet Type: High-density flux ferrite
Tweeter Magnet Type: Neodymium
Cone Material: Pressed-pulp with cotton fibers
Dome Material: Tetolon
Maximum Excursion (Xmech): ±6 mm (0.24 in.)