GROUND ZERO GZHW 20XSPL-D2
Experience thunderous bass with the GROUND ZERO GZHW 20XSPL-D2, an 8-inch high-performance SPL subwoofer engineered for maximum sound pressure level output. This Klippel optimized driver combines premium materials and advanced engineering to deliver earth-shaking 1500-watt SPL performance.
Key Features
- Klippel Optimized Design: Advanced motor optimization for maximum efficiency and reduced distortion
- Reinforced Paper Cone: Delivers tight, punchy bass response with excellent durability
- Long Stroke Compound Surround: Enables extreme excursion for maximum output capability
- Solid Aluminum Cast Basket: Provides rigid mounting platform and superior heat dissipation
- 63mm Copper Voice Coil: Large 2.5-inch coil handles extreme power with precision control
- 2-Layer Polycot Spider: Dual spider design maintains precise cone alignment under extreme excursion
- IMPP Dust Cap: Injection-molded polypropylene cap with distinctive 3D Ground Zero logo
Technical Specifications
- Diameter: 20 cm / 8 inches
- Power Handling: 700W RMS / 1500W SPL
- Impedance: 2x 2 Ohms (dual voice coil)
- Efficiency: 80 dB
- Voice Coil: 63 mm / 2.5″ Copper
- Maximum Excursion: 40 mm / 1.57″
- Mounting Diameter: 187 mm / 7.36″
- Mounting Depth: 145 mm / 5.71″
- Resonance Frequency: 38.3 Hz
- Total Q Factor: 0.381
- Equivalent Air Volume: 4.77 L / 0.17 cu.ft.
Perfect for SPL competition builds and high-output bass systems demanding maximum sound pressure levels.















