JBL GX328 Car Speaker

340

Product description


JBL GX328 3.5" (2-way) coaxial GX series speakers feature Plus One® cone technology and a rim-driven silk dome tweeter for enhanced midrange/highs clarity. A direct upgrade option for popular 3.5" dash positions, they work efficiently on the head unit with the option to add an amplifier later if desired.


Features

  • Plus One® Cone: Larger vibration area for cleaner bass and better response.
  • Edge-Driven Dome: Crisp, smooth details without annoying sharpness.
  • High sensitivity (~89 dB @2.83V/1m): Good performance even with average head unit power.
  • Low impedance (≈2.3Ω): To make the most of the available power from the original systems.
  • EASY INSTALLATION FIT: 3.5" size is common for dashboard locations with basic mounting accessories.


Technical specifications

  • Size: 3.5 inches
  • Type: Bidirectional Coaxial
  • Nominal Power (RMS): 25W
  • Peak Power: 75W
  • Sensitivity (2.83V/1m): ≈ 89 dB
  • Nominal impedance: ≈ 2.3 ohms
  • Frequency response: ≈ 90Hz – 21kHz
  • Approximate mounting depth (Top-mount): ≈ 1-7/16"


Product Contents

  • GX328 (3.5") Headphones Pair
  • Foam strips/adhesive gaskets for installation (may vary by batch)
  • User Manual and Installation Instructions


Common installation locations

  • Center Dash: Acts as a center channel to improve sound positioning in front of the driver and passenger.
  • Front Dashboard Corners: In 3.5" Right/Left ports available on some models.



Tech Complex Technical Team Opinion

Conclusion: The JBL GX328 is suitable for enhancing the clarity and focus of sounds in cars that have a 3.5" jack on the dashboard. It works efficiently on the head unit and does not require an amplifier .

  • Best Use: As a center channel or a light front-end supplement that emphasizes the mid/high range.
  • Best paired with 6.5" door speakers (front/rear) and an optional subwoofer to fill the low range.


Official documents from JBL/Harman


Support and assistance

For technical inquiries, please contact technical support.

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