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Product details

Key Features
  • Anodized aluminum cone helps deliver strong detail and clean transient response
  • Neodymium motor supports accuracy and compact packaging in tight installs
  • 3 ohm design helps extract more usable output from available amplifier power
  • Compact format suits serious 3-way systems without demanding excessive space
  • Built for SQ-focused systems where vocal clarity and tonal precision matter
Advanced Specifications
  • Product type: SQ midrange speaker
  • Series: Uranium Series
  • Model: GZUM 80SQ
  • Diameter: 80 mm / 3.15″
  • Power handling: 50W RMS / 80W max (250 Hz HPF @ 12dB/oct)
  • Impedance: 3 ohms
  • Efficiency: 90 dB
  • Frequency response: 200 Hz – 6 kHz
  • Voice coil: 25 mm / 1″ copper
  • Cone: Anodized aluminum
  • Motor: Neodymium magnet
  • Basket: Fiber reinforced plastic
  • Terminals: Plug / soldering terminal
  • Mounting diameter: 77 mm / 3.03″
  • Mounting depth: 35 mm / 1.38″
  • Resonance frequency (Fs): 134 Hz
  • Re: 2.8 ohms
  • Qms: 4.26
  • Qes: 0.37
  • Qts: 0.34
  • Vas: 0.71 L
  • Mms: 3.7 g
  • BL: 4.9 N/A
  • Rms: 0.73 kg/s
  • Cms: 0.381 mm/N
  • Le: 0.033 mH
  • Xmax: 8 mm / 0.31″ p2p
  • Grille: Hexagon protection grille included
  • Verification: Verified with KLIPPEL®
  • Packaging: 1 pair
Best Suited For
  • High-quality 3-way front stage systems
  • Active and DSP-controlled builds using a dedicated midrange
  • Installations focused on vocal clarity, staging, and tonal balance
  • Users wanting a compact midrange with serious resolution
  • Systems paired with quality tweeters and dedicated midbass drivers
Why OSCA Backs This Product

The anodized aluminum cone is a big part of what makes this driver appealing. In a good active front stage, that kind of driver can give you the cleaner attack, sharper detail, and vocal definition that makes the whole system feel more focused and believable.

Trusted Brands for Serious Systems

Selected for Real-World Performance

Cutting Through the Noise of Car Audio

About Ground Zero 🚀

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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