Ground Zero GZNW 25C
The Ground Zero GZNW 25C is a 25 cm / 10″ high performance SPL subwoofer engineered for massive output. A carbon-fiber cone, 75 mm copper voice coil and airflow optimized aluminum cast basket let it handle 1500 watts RMS and 3000 watts SPL power with 45 mm of excursion, all from a 10″ chassis.
Key Features
- Klippel Optimized Motor: Laser-measured design for linear, high-excursion performance
- Carbon-Fiber Cone and Dust Cap: Extremely stiff and light for accurate high-SPL bass
- Airflow Optimized Aluminum Cast Basket: Maximum cooling and rigidity under extreme power
- 75 mm / 3″ Copper Voice Coil: Dual 2 Ohm coils built for 1500 W RMS continuous power
- 2-Layer Polycot Spider: Strong, controlled suspension for 45 mm Xmax
- Massive Push Terminals: Secure connection for heavy-gauge speaker cable
Technical Specifications
- Diameter: 25 cm / 10″
- Power Handling: 1500 W RMS / 3000 W SPL
- Power Recommendation: 1000 – 3000 W
- Impedance: 2 x 2 Ohm
- Efficiency: 83 dB
- Voice Coil: 75 mm / 3″ copper
- Maximum Excursion (Xmax): 45 mm / 1.77″
- Mounting Diameter: 238 mm / 9.37″
- Mounting Depth: 216 mm / 8.50″
- Resonance Frequency (Fs): 42 Hz
- Total Q (Qts): 0.5
- Equivalent Air Volume (Vas): 6.8 L / 0.24 cu.ft.
Built for competition-level SPL systems and enthusiasts who demand maximum output from a 10″ subwoofer.















