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The Ground Zero GZIW 10XSPL-D2 is a 10″ (25 cm) dual 2 ohm SPL subwoofer rated at 500W RMS / 700W SPL, from Ground Zero's XSPL range. It features a 63 mm copper voice coil, cast aluminium basket and 25 mm Xmax for high-output bass systems.
Key specifications
- Size: 25 cm / 10 inch
- Power handling: 500W RMS / 700W SPL
- Impedance: 2x2 ohms (dual voice coil)
- Recommended amplifier power: 400 to 700W
- Efficiency: 84 dB
- Voice coil: 63 mm / 2.5 inch copper
- Xmax: 25 mm / 0.98 inch
- Mounting depth: 147 mm / 5.79 inch
- Mounting diameter: 230 mm / 9.06 inch
GZIW 10XSPL-D2: 25 cm / 10″ SPL subwoofer
A dual 2 ohm, 500W RMS subwoofer built for high-output systems. The Klippel-optimised design and reinforced paper cone deliver controlled, accurate bass even at high excursion levels.
Features
- 10″ SPL subwoofer
- Klippel® optimised
- Reinforced paper cone
- Long stroke compound surround
- Solid aluminium cast 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 Iridium.
Specification
| Model | High-Quality SPL subwoofer |
|---|---|
| Diameter | 25 cm / 10″ |
| Power handling | (RMS/SPL) 500 / 700 Watts |
| Impedance | 2x2 Ohms |
| Efficiency | 84 dB |
| Power recommendation | 400 – 700 Watts |
| Voice coil | 63 mm / 2.5″ Copper |
| Cone | Reinforced paper with honeycomb structure |
| Max. Excursion (Xmax) | 25 mm / 0.98″ |
| Mounting Ø | 230 mm / 9.06″ |
| Mounting depth | 147 mm / 5.79″ |
| Resonance frequency (Fs) | 40.8 Hz |
| Overall quality (Qts) | 0.62 |
| Equiv. air volume (Vas) | 22.8 L / 0.81 cu.ft. |
What's Included
- GZIW 10XSPL-D2
Ground Zero
About the Ground Zero GZIW 10XSPL-D2
From our tech experts at CEN
A Ground Zero 10 inch subwoofer, 2 ohm, handling 500w 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
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
More from Ground Zero Iridium
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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 10XSPL-D2 be wired to 1 ohm or 4 ohm?
A: Yes. The GZIW 10XSPL-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 400 to 700W of amplifier power.
Q: What are the Thiele/Small parameters of the GZIW 10XSPL-D2?
A: Fs is 40.8 Hz, Qts is 0.62 and Vas is 22.8 litres (0.81 cu.ft). Xmax is 25 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.
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