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The Ground Zero GZIC 650FX is a 6.5 inch (165 mm) 2-way component speaker kit rated at 100W RMS (140W max) at 4 ohms. With a 19 mm silk dome tweeter and a low 44 mm mounting depth, it is an easy upgrade for factory door speaker locations in a wide range of vehicles.
Key specifications
- Size: 165 mm / 6.5 inch
- Type: 2-way component
- Power handling: 100W RMS / 140W max
- Impedance: 4 ohms
- Efficiency: 90 dB
- Frequency response: 50 Hz to 20 kHz
- Tweeter: 19 mm / 0.75 inch silk dome
- Mounting depth: 44 mm / 1.73 inch
- Mounting cutout: 142.5 mm / 5.61 inch
GZIC 650FX: 165 mm / 6.5″ 2-way component speaker system
A 6.5″ 2-way component kit built for clean sound and easy fitting, with a low installation depth that suits a wide range of vehicles.
Features
- 2-way component speaker system
- Coated paper cone
- Rubber surround
- Euro-DIN basket
- Resonance free steel basket
- Universal 4 ohms version
- 19 mm / 0.75″ soft dome tweeter
- Ferrite motor
- 12 dB/oct high pass filter
- Incl. protection grill
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Specification
| Model | 2-way component speakers |
|---|---|
| Diameter | 165 mm / 6.5″ |
| Power handling | (RMS/max.) 100 / 140 Watts |
| Impedance | 4 Ohms |
| Efficiency | 90 dB |
| Frequency Response | 50 Hz – 20 kHz |
| Tweeter | 19 mm / 0.75″ silk dome |
| Cone | Coated Paper |
| Mounting depth | 44 mm / 1.73″ |
| Mounting cutout | 142.5 mm / 5.61″ |
| Xmax | 6 mm / 0.24″ |
| Crossover | 2x HP / 2x LP |
What's Included
- GZIC 650FX
Ground Zero
About the Ground Zero GZIC 650FX
From our tech experts at CEN
Ground Zero 6.5 inch component speakers, with separate tweeters for mounting where you will actually hear them, rated at 100w RMS.
Who it suits
Drivers building a proper front stage and happy for tweeters to be mounted separately, which usually means a professional fit.
Our tech experts advise
Sizes, adapter rings and harnesses vary by vehicle, year and trim, so we confirm what your car takes before ordering rather than guessing. Door treatment matters as much as the speaker, and these repay an amplifier. 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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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: What is the mounting depth of the GZIC 650FX?
A: The GZIC 650FX woofer needs 44 mm (1.73 inch) of mounting depth and a 142.5 mm (5.61 inch) cutout, which suits most factory 6.5 inch door locations.
Q: Does the GZIC 650FX come with crossovers?
A: Yes. It is a component kit with a separate tweeter, and the specification lists the crossover as 2x high pass and 2x low pass, with a 12 dB/oct high pass filter.
Q: Can the GZIC 650FX run from a head unit?
A: It is a universal 4 ohm, 90 dB efficient kit, so it works from a head unit, though an amplifier delivering up to around 100W RMS per channel gets the most from it.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
