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Product details

Key Features
  • Designed for active systems where maximum output and control are required
  • High-efficiency neodymium motor delivers strong projection with minimal power
  • Compression tweeter design improves high-frequency output and projection
  • Cast basket construction increases rigidity and stability under load
  • Built for high-SPL environments where conventional speakers fall short
Advanced Specifications
  • Speaker type: Full range (active use)
  • Size: 165 mm / 6.5″
  • Power handling: 150W + 50W
  • Impedance: 4 ohms
  • Sensitivity: 96 dB
  • Frequency response: 150 Hz – 20 kHz
  • Cone: Coated paper
  • Surround: Wave-shaped textile
  • Tweeter: 25 mm / 1″ PEI compression tweeter
  • Motor: Neodymium
  • Voice coil: 38 mm / 1.5″ CCA
  • Basket: Aluminum cast
  • Mounting diameter: 147 mm / 5.79″
  • Mounting depth: 86 mm / 3.39″
  • Features: Klippel® optimised
  • Grille: Hexagon protection grille included
  • Application: Weather resistant / active system use
Best Suited For
  • Active systems with DSP and dedicated amplification
  • Harley Davidson 2014+ speaker upgrades
  • High-output builds requiring strong midrange projection
  • Outdoor or exposed installations needing weather resistance
  • Users prioritising volume and projection over low-frequency extension
Why OSCA Backs This Product

This isn’t a typical coaxial, it’s built for output and projection. In the right setup, it delivers the kind of forward, high-energy sound most speakers simply can’t achieve.

Trusted Brands for Serious Systems

Selected for Real-World Performance

Cutting Through the Noise of Car Audio

Proven Performance, Engineered in Germany

Ground Zero, established in 1995, is a German-engineered car audio brand with strong American performance roots, known for delivering high-output, competition-proven equipment built on real engineering, not hype. With distribution in over 80 countries and a full range of system components developed in Germany, the brand has earned global respect through consistent results in independent testing and demanding installs. From its origins in high-excursion subwoofer design to its evolution into a complete system solution, Ground Zero remains a go-to for enthusiasts and installers who value output, reliability, and proven performance.

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