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Ground Zero GZW 12-30A – 12" SPL Subwoofer, 30th Anniversary Model
Klippel-optimized limited edition – 30 years of expertise in one driver
The Ground Zero GZW 12-30A is a heavy-duty limited edition subwoofer that encapsulates the knowledge gained during Ground Zero's 30-year journey. Klippel-optimized construction, 45 mm Xmax, and 1500 W continuous power handling make this driver a true SPL powerhouse.
No compromises on appearance: black painted open cast frame, well-ventilated heavy-duty magnet, gold-plated push terminals, pressed paper cone, wide surround with gold stitching, and carbon fiber dust cap with a gold Ground Zero logo.
Technical specifications
- Type: High-Quality SPL subwoofer
- Diameter: 30 cm / 12"
- Power RMS / SPL: 1500 / 3500 W
- Impedance: 2 × 2 Ω
- Sensitivity: 85 dB
- Recommended power: 1000–3500 W
- Voice coil: 75 mm / 3" (copper)
- Cone: reinforced paper
- Xmax: 45 mm / 1.77"
- Mounting cut-out: 284 mm / 11.18"
- Mounting depth: 198 mm / 7.80"
- Resonance frequency Fs: 26.5 Hz
- Qts: 0.52
- Vas: 30.6 L
Enclosure recommendation
- Ported (bass reflex): 90 L net
- Port area: 40 × 250 mm
- Port length: 257 mm
- Tuning frequency: 25 Hz