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The Ground Zero GZIC 165.2SPL is a 6.5 inch (165 mm) 2-way SPL component speaker system rated at 120W RMS (200W SPL), with a high efficiency 3 ohm design, HQPP cone and high-roll rubber surround. It is built for competition-style, high-output installs.
This is the SPL version of the 4 ohm GZIC 165.2 component kit.
Key specifications
- Size: 165 mm / 6.5″ 2-way SPL component
- Power handling: 120W RMS, 200W SPL
- Impedance: 3 ohms
- Efficiency: 89 dB
- Frequency response: 45 Hz - 20 kHz
- Crossover: 12 dB/oct high-pass at 5000 Hz
- Xmax: 13 mm
- Tweeter: 25 mm / 1″ Mylar dome (GZCT 25M-SPL), 54 mm / 2.13″ outer diameter
- Midwoofer cutout / depth: 142.5 mm / 68 mm
- Tweeter cutout / depth: 48 mm / 16 mm
GZIC 165.2SPL: 165 mm / 6.5″ 2-way SPL component speaker system
A competition-focused component kit built for high output. The GZIC 165.2SPL delivers 120W RMS with a 3 ohm design that works harder from your amplifier.
Features
- 2-way SPL component speaker system
- HQPP cone with 3D structure
- High-roll rubber surround
- Euro-DIN basket
- Resonance free steel basket
- High efficiency 3 ohms version
- 25 mm / 1″ Mylar tweeter
- Ferrite motor
- 12 dB/oct high pass filter
- Includes hexagon style protection grill
Explore the full range in Ground Zero.
Specification
| Nominal Diameter | 16.5 cm / 6.5“ |
|---|---|
| Loudspeaker Type | 2-way SPL component loudspeaker system |
| Impedance | 3 Ohm / ohms |
| Frequency Response | 45 Hz – 20 kHz |
| Cross Frequency | 5000 Hz (12 dB/ oct.) high pass filter |
| Power Handling | (RMS) 120 Watts |
| Power Handling | (SPL) 200 Watts |
| Efficiency (SPL) | 89 dB |
| Resonance Frequency | 62 Hz |
| Xmax | 13 mm / 0.51” |
| Tweeter | 25 mm / 1″ Mylar dome |
| Tweeter Diameter (nominal) | 54 mm / 2.13” |
| Tweeter Mounting Cutout | 48mm / 1.89” |
| Tweeter Mounting Depth | 16 mm / 0.63” |
| Midwoofer Diameter (nominal) | 165mm / 6.5” |
| Midwoofer Mounting Cutout | 142.5 mm / 5.61” |
| Midwoofer Mounting Depth | 68 mm / 2.68” |
What's Included
- GZIC 165.2SPL
Ground Zero
About the Ground Zero GZIC 165.2SPL
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 120w RMS, from the SPL line built for output.
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: Why is the GZIC 165.2SPL 3 ohms?
A: The 3 ohm design is a high efficiency version: a lower impedance draws more power from the same amplifier than a 4 ohm speaker would.
Q: What mounting depth does the GZIC 165.2SPL need?
A: The 6.5 inch midwoofer needs a mounting depth of 68 mm and a 142.5 mm cutout. The tweeter needs a 48 mm cutout and 16 mm depth.
Q: How much power does the GZIC 165.2SPL handle?
A: It is rated at 120W RMS and 200W SPL, with 89 dB efficiency.
Q: What size is the GZIC 165.2SPL tweeter?
A: It uses the GZCT 25M-SPL tweeter with a 25 mm (1 inch) Mylar dome. The tweeter housing is 54 mm in diameter and needs a 48 mm cutout and 16 mm mounting depth.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional speaker installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
