Ground Zero GZW 12-30A – 30th Anniversary Limited Edition SPL Subwoofer – 12″
🔥 Highlights:
-
💥 High SPL Power – 1,500 W RMS / 3,500 W max
-
🛡 Ultra-Robust Construction – Solid cast aluminum basket and reinforced paper cone
-
🎯 Precision and Linearity – Klippel® optimized for perfect cone excursion control
-
🌬 High Excursion – Long-throw U-surround and 75 mm voice coil for deep bass
📝 Description:
The GZW 12-30A is a high-end SPL subwoofer designed for enthusiasts of powerful and precise sound. Its robust construction with a cast basket and reinforced paper cone allows it to handle extreme sound levels while maintaining faithful reproduction of low frequencies.
-
The 75 mm (3″) copper voice coil ensures optimal thermal management.
-
The 2-layer Polycot spider and carbon dust cap provide stability and durability.
-
Designed for vented or sealed enclosures, it delivers deep and controlled sound.
📊 Technical Specifications:
| Feature |
Value |
| Type |
12″ SPL Subwoofer |
| Diameter |
30 cm / 12″ |
| RMS / max power |
1,500 / 3,500 W |
| Impedance |
2 x 2 Ω |
| Efficiency |
85 dB |
| Voice coil |
Copper 75 mm / 3″ |
| Cone |
Reinforced paper |
| Max excursion (Xmax) |
45 mm / 1.77″ |
| Mounting Ø |
284 mm / 11.18″ |
| Mounting depth |
198 mm / 7.80″ |
| Resonance frequency (Fs) |
26.5 Hz |
| Damping ratio (Qts) |
0.52 |
| Equivalent air volume (Vas) |
30.6 L / 1.08 ft³ |
| Surround |
Long-throw U |
| Optimization |
Klippel® |
🎯 Why choose it?
✔ For deep and powerful bass
✔ Robust construction suitable for high SPL levels
✔ Limited edition for Ground Zero collectors and enthusiasts