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The Ground Zero GZRF 6.5SQX is a 6.5 inch (165 mm) 2-way coaxial car speaker rated at 100W RMS (140W max) at 3 ohms. A black aluminium cone, 25 mm silk dome tweeter and 91 dB efficiency suit it to lower-powered head units and factory amplifiers.
Key specifications
- Size: 165 mm / 6.5 inch
- Type: 2-way coaxial
- Power handling: 100W RMS / 140W max
- Impedance: 3 ohms
- Efficiency: 91 dB
- Frequency response: 50 Hz to 24 kHz
- Tweeter: 25 mm / 1 inch silk dome
- Mounting diameter: 142.5 mm / 5.61 inch
- Mounting depth: 68 mm / 2.68 inch
Prefer a separate tweeter? The GZRC 165.2SQX is the 6.5 inch component kit from the same range.
GZRF 6.5SQX: 165 mm / 6.5″ 2-way coaxial speaker system
A solid upgrade for factory speaker positions. The GZRF 6.5SQX pairs a black circular-brushed aluminium cone with a 3 ohm impedance, making it well suited to lower-powered head units and factory amplifiers.
Features
- 2-way coaxial speaker system
- Aluminium cone
- Rubber surround
- Conex® spider
- Resonance free steel basket
- High efficient 3 ohms version
- 25 mm / 1″ silk dome tweeter
- Ferrite motor
- Tweeter and overload protection
- Incl. protection grill
Explore the full range in Ground Zero.
Specification
| Model | 2-way coaxial speakers |
|---|---|
| Diameter | 165 mm / 6.50″ |
| Power handling | (RMS/max.) 100 / 140 Watts |
| Impedance | 3 ohms |
| Efficiency | 91 dB |
| Frequency Response | 50 Hz – 24 kHz |
| Tweeter | 25 mm / 1″ silk dome |
| Mounting Ø | 142.5 mm / 5.61″ |
| Mounting depth | 68 mm / 2.68″ |
| Crossover | 6 dB/oct – high pass filter |
What's Included
- GZRF 6.5SQX
Ground Zero
About the Ground Zero GZRF 6.5SQX
From our tech experts at CEN
Ground Zero 6.5 inch coaxial speakers, rated at 100w RMS.
Who it suits
Drivers replacing tired factory speakers who want a clear improvement.
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 mounting depth does the GZRF 6.5SQX need?
A: It needs 68 mm (2.68 inch) of mounting depth and a 142.5 mm (5.61 inch) mounting diameter.
Q: Why is the GZRF 6.5SQX 3 ohms?
A: The 3 ohm impedance draws more power from a head unit or factory amplifier than a typical 4 ohm speaker, helping it play louder from lower-powered sources.
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.
