Ground Zero GZIW 12XSPL-D2 12″ Dual 2 Ohm Subwoofer 600w
Couldn't Load Pickup availability
The Ground Zero GZIW 12XSPL-D2 is a 12 inch (30 cm) SPL car subwoofer rated at 600W RMS (1000W SPL) with dual 2 ohm voice coils. With 34 mm Xmax and a 63 mm copper voice coil, it is built for high-output bass and flexible amplifier matching.
Key specifications
- Size: 30 cm / 12 inch
- Power handling: 600W RMS / 1000W SPL
- Impedance: 2x2 ohms (dual voice coil)
- Recommended amplifier power: 500 to 1000W
- Efficiency: 86 dB
- Voice coil: 63 mm / 2.5 inch copper
- Xmax: 34 mm / 1.34 inch
- Mounting depth: 162 mm / 6.38 inch
- Mounting diameter: 285 mm / 11.22 inch
GZIW 12XSPL-D2: 30 cm / 12″ high quality SPL subwoofer
A competition-grade 12″ subwoofer built for high output. The dual 2 ohm voice coil configuration gives you flexible wiring options to suit your amplifier setup.
Features
- 12″ SPL subwoofer
- Klippel® optimised
- Reinforced paper cone with 3D honeycomb structure
- Long stroke compound surround
- Resonance free GZ steel basket
- 63 mm / 2.5″ copper voice coil
- 2-layer Polycot-Conex spider
- IMPP dust cap with 3D structure logo
Explore the full range in Ground Zero.
Specification
| Model | High-Quality SPL subwoofer |
|---|---|
| Diameter | 30 cm / 12″ |
| Power handling | (RMS/SPL) 600 / 1000 Watts |
| Impedance | 2x2 Ohms |
| Efficiency | 86 dB |
| Power recommendation | 500 – 1000 Watts |
| Voice coil | 63 mm / 2.5″ Copper |
| Cone | Reinforced paper with honeycomb structure |
| Max. Excursion (Xmax) | 34 mm / 1.34″ |
| Mounting Ø | 285 mm / 11.22″ |
| Mounting depth | 162 mm / 6.38″ |
| Resonance frequency (Fs) | 32.5 Hz |
| Overall quality (Qts) | 0.73 |
| Equiv. air volume (Vas) | 40.4 L / 1.43 cu.ft. |
What's Included
- GZIW 12XSPL-D2
Ground Zero
About the Ground Zero GZIW 12XSPL-D2
From our tech experts at CEN
A Ground Zero 12 inch subwoofer, 2 ohm, handling 600w RMS.
Who it suits
Drivers building a system where the bass keeps pace with the front stage, and competition builds where output is the point.
Our tech experts advise
Enclosure volume and tuning decide most of what you hear. We build enclosures to suit both driver and vehicle at our Beeston workshop. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
Explore the full Ground Zero range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Ground Zero
Recommended For You
Discover more top-rated gear, handpicked to go with what you're viewing
Looking for Installation?
At CEN we take pride in being able to share the quality of our work as well as being able to show what incredible products we have installed week on week.
More from Ground Zero
More options from the same range, in stock and ready to go
Frequently Asked Questions
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: Can the GZIW 12XSPL-D2 be wired to 1 ohm or 4 ohm?
A: Yes. The GZIW 12XSPL-D2 has dual 2 ohm voice coils (2x2 ohms), so it can be wired in parallel for a 1 ohm load or in series for a 4 ohm load. Choose the wiring to suit the stable load of your amplifier. Ground Zero recommends 500 to 1000W of amplifier power.
Q: What are the Thiele/Small parameters of the GZIW 12XSPL-D2?
A: Fs is 32.5 Hz, Qts is 0.73 and Vas is 40.4 litres (1.43 cu.ft). Xmax is 34 mm.
Q: Can CEN fit this subwoofer for me?
A: Yes. CEN offers professional installation from our Nottingham premises, including enclosure, amplifier and wiring. Contact us to book or ask for a quote.
