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Ultimate Performance
The Ground Zero GZNW 25C brings 1500 watts RMS power handling to a 10-inch Nuclear Series subwoofer. Its carbon-fiber cone and dust cap combine with a cast-aluminum basket designed for airflow.
| Model | GZNW 25C |
|---|---|
| Series | Nuclear |
| Type | High-performance SPL subwoofer |
| Nominal diameter | 25 cm / 10 inches |
| Power handling (RMS / SPL) | 1500 / 3000 watts |
| Impedance | Dual 2 ohms (2 × 2 Ω) |
| Efficiency | 83 dB |
| Recommended amplifier power | 1000–3000 watts |
| Voice coil | 75 mm / 3-inch copper |
| Cone | Carbon fiber |
| Maximum excursion (Xmax) | 45 mm |
| Mounting cutout | 238 mm |
| Mounting depth | 216 mm |
| Resonance frequency (Fs) | 42 Hz |
| Total Q (Qts) | 0.5 |
| Equivalent air volume (Vas) | 6.8 L |
Choose power and wiring for one GZNW 25C. Rated at 1500W RMS and 3000W maximum/SPL, the GZNW 25C offers several amplifier pairing options. Choose a setup matched to your listening goals, enclosure and electrical system.
1530W RMS at 1 ohm
Subwoofer wiring: Parallel → 1 ohm.
Close to the subwoofer’s nominal RMS rating.
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Amplifier rating: 3180W RMS at 1 ohm.
For one GZNW 25C: wire both coils in parallel for a 1-ohm load.
A high-output choice for a professionally configured system targeting up to 3000W. Have your installer set and verify output for the subwoofer and enclosure, as the amplifier’s full rated output exceeds the woofer’s listed maximum.
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3000W RMS at 1 ohm.
For one GZNW 25C: wire both 2-ohm coils in parallel for a 1-ohm load.
Select the 1-ohm version linked here for a high-output system with one GZNW 25C. Professional setup helps match amplifier output to the enclosure and your listening goals.
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3000W RMS continuous at 1 ohm.
For one GZNW 25C: wire both 2-ohm coils in parallel for a 1-ohm load.
Includes a bass remote. A high-output amplifier option for one GZNW 25C with a properly configured enclosure and amplifier setup.
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Get the most from your system: Proper enclosure design, a clean signal and correctly adjusted gain and filters help deliver strong, reliable bass. TDS Car Audio can help you select and tune the right combination. Warranty note: Burnt voice coils are not covered under warranty. Please contact TDS Car Audio for the full warranty terms or help with your setup.
View the manufacturer’s amplifier-power chart (manual, page 5)
Open the official Ground Zero documents for this model:
Specifications supplied by Ground Zero. Sold individually; enclosure and amplifier sold separately.
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