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We’re here to help you navigate car audio properly. We take pride in guiding enthusiasts of all levels, whether it’s a simple upgrade or a full system build.

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Product details

Key Features
  • Weather-resistant construction for harsh environments and outdoor use
  • High-efficiency design delivering strong output with minimal power
  • SPL-focused cone and surround for clarity at extreme volume levels
  • Ferrite motor structure for consistent, reliable performance under load
  • Integrated coaxial design for simple full-range installation
Advanced Specifications
  • Speaker type: 2-way coaxial loudspeaker
  • Size: 165 mm / 6.5″
  • Power handling: 100W RMS / 250W max
  • Impedance: 4 ohms
  • Sensitivity: 93 dB
  • Frequency response: 50 Hz – 20 kHz
  • Cone: Pressed paper
  • Surround: High-excursion foamed W-surround
  • Tweeter: 25 mm / 1″ Mylar dome
  • Crossover: 12 dB/oct high-pass filter
  • Motor: Ferrite
  • Voice coil: 1.5″ copper-clad aluminum
  • Basket: Resonance-free steel
  • Mounting diameter: 145 mm / 5.71″
  • Mounting depth: 72 mm / 2.83″
  • Features: Klippel® optimised
  • Grille: Hexagon protection grille included
Best Suited For
  • Off-road vehicles, ATVs, motorcycles, and marine applications
  • High-output daily driver systems requiring durability
  • Rear fill or secondary stage in SPL-focused builds
  • Installations exposed to moisture, dust, or harsh conditions
  • Users needing strong output without complex system design

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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Standard 12-Month Warranty

Manufacturer warranty on all products

Expert Support Available

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