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The Ground Zero GZRW 8XSPL is an 8″ (20 cm) dual 2 ohm SPL subwoofer rated at 500W RMS / 1000W SPL, from Ground Zero's GZRW competition-focused range.
Key specifications
- Size: 8″ / 20 cm
- Power handling: 500W RMS / 1000W SPL
- Recommended amplifier power: 400 – 1000W
- Impedance: 2 x 2 ohm (dual voice coil)
- Sensitivity: 84.6 dB
- Xmax: 22 mm / 0.866″
- Mounting diameter: 182 mm / 7.17″
- Mounting depth: 133 mm / 5.24″
- Voice coil: 50 mm / 2″ copper
20 cm / 8″ high quality SPL subwoofer
A compact, competition-ready subwoofer built for serious bass output in tight spaces. Handles 500W RMS with a dual 2 ohm voice coil configuration.
Features
- 8″ high quality SPL subwoofer
- Klippel® optimised
- Reinforced paper cone
- Long stroke compound surround
- Resonance free steel basket
- 50 mm / 2″ copper voice coil
- Polycot spider
- IMPP dust cap with 3D structure logo
Explore the full range in Ground Zero Radioactive.
Specification
| Model | High-Quality SPL subwoofer |
|---|---|
| Diameter | 20 cm / 8″ |
| Power handling | (RMS/SPL) 500 / 1000 Watts |
| Impedance | 2x2 Ohms |
| Efficiency | 84.6 dB |
| Power recommendation | 400 – 1000 Watts |
| Voice coil | 50 mm / 2″ copper |
| Cone | Reinforced paper |
| Max. Excursion (Xmax) | 22 mm / 0.866″ |
| Mounting Ø | 182 mm / 7.17″ |
| Mounting depth | 133 mm / 5.24″ |
| Resonance frequency (Fs) | 45.8 Hz |
| Overall quality (Qts) | 0.36 |
| Equiv. air volume (Vas) | 7.4 L / 0.26 cu.ft. |
What's Included
- GZRW 8XSPL
Ground Zero
About the Ground Zero GZRW 8XSPL
From our tech experts at CEN
A Ground Zero 8 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 Radioactive
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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: How much power can the GZRW 8XSPL handle?
A: It is rated at 500W RMS and 1000W SPL. Ground Zero recommends an amplifier delivering 400 to 1000 watts.
Q: What impedance is the GZRW 8XSPL?
A: It has dual 2 ohm voice coils (2 x 2 ohm). Wired in series they present a 4 ohm load and in parallel a 1 ohm load.
Q: How much space does the GZRW 8XSPL need?
A: It needs a 182 mm mounting diameter and 133 mm of mounting depth.
Q: Can CEN fit this subwoofer for me?
A: Yes. CEN offers professional subwoofer and amplifier installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
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