Couldn't Load Pickup availability
The Ground Zero GZHW 30XSPL-D2 is a competition-grade 12″ (30 cm) SPL subwoofer with dual 2 ohm voice coils, a 75 mm copper voice coil, and a 1500W RMS (3000W SPL) power rating. It is part of Ground Zero's GZHW XSPL range, built for serious high-output SPL applications.
Key specifications
- Size: 30 cm / 12″
- Power handling: 1500W RMS / 3000W SPL
- Impedance: Dual 2 ohm voice coils
- Voice coil: 75 mm / 3″ copper
- Mounting depth: 198 mm
- Resonance frequency (Fs): 39.1 Hz
- Qts: 0.56
GZHW 30XSPL-D2: 12″ high-output SPL subwoofer
A competition-grade 12″ subwoofer built for high output. The GZHW 30XSPL-D2 runs a dual 2 ohm voice coil configuration and handles 1500W RMS, making it a serious choice for SPL builds.
Features
- 12″ high-quality SPL subwoofer
- Klippel® optimised
- Reinforced paper cone
- Long stroke compound surround
- Solid aluminium cast basket
- 75 mm / 3″ copper voice coil
- 2-layer Polycot spider
- IMPP dust cap with 3D structure logo
Explore the full range in Ground Zero Hydrogen.
Specification
| Model | High-Quality SPL Subwoofer |
|---|---|
| Diameter | 30 cm / 12″ |
| Power handling | (RMS/SPL) 1500 / 3000 Watts |
| Mounting depth | 198 mm |
| Resonance frequency (Fs) | 39.1 Hz |
| Damping ratio (Qts) | 0.56 |
What's Included
- GZHW 30XSPL-D2
Ground Zero
About the Ground Zero GZHW 30XSPL-D2
From our tech experts at CEN
The Ground Zero GZHW 30XSPL-D2 is a competition-grade 12″ SPL subwoofer rated at 1500W RMS and 3000W SPL, with dual 2 ohm voice coils. It features a 75 mm copper voice coil, a Klippel-optimised reinforced paper cone, and a solid aluminium cast basket, built for sustained high-output performance.
Who it suits
This driver suits enthusiasts building serious SPL competition systems or high-demand street builds that require maximum output from a 12″ driver. If you need a dual 1 ohm configuration at the same power level, consider the Ground Zero GZHW 30XSPL-D1.
Our tech experts advise
Allow a mounting depth of 198 mm when planning your enclosure. The dual 2 ohm coils can be wired in series for 4 ohm or in parallel for 1 ohm, so match the configuration to your amplifier's stable load. A high-power amplifier is essential to make use of the full 1500W RMS rating. Fitting is priced per vehicle — see our car audio installation service in Nottingham.
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 Hydrogen
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: How much power does the GZHW 30XSPL-D1 handle?
A: It is rated at 1500W RMS and 3000W SPL.
Q: What impedance is the GZHW 30XSPL-D1?
A: It has dual 1 ohm voice coils, so wired in series it presents a 2 ohm load and in parallel 0.5 ohm. Make sure your amplifier is stable at the load you choose.
Q: What mounting depth does the GZHW 30XSPL-D1 need?
A: It has a mounting depth of 198 mm.
Q: Can CEN fit this subwoofer for me?
A: Yes. CEN offers professional subwoofer installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
