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The Ground Zero GZRK 165SQX is a 6.5 inch (165 mm) high power midwoofer pair rated at 120W RMS (160W max) at 3 ohms. A black anodised aluminium cone and massive aluminium phase plug make it suited to component front stages and higher power levels.
Key specifications
- Size: 165 mm / 6.5 inch
- Type: midwoofer (1 pair per package)
- Power handling: 120W RMS / 160W max
- Impedance: 3 ohms
- Efficiency: 90 dB
- Frequency response: 45 Hz to 15 kHz
- Voice coil: 25 mm / 1 inch
- Mounting diameter: 142.5 mm / 5.61 inch
- Mounting depth: 68 mm / 2.68 inch
The GZRK 165SQX is the midwoofer used in the GZRC 165.2SQX and GZRC 165.2SQX-IV component kits.
GZRK 165SQX: 165 mm / 6.5″ high power midwoofer
A high-output 6.5″ midwoofer built around a black aluminium cone, designed for clean, accurate sound at higher power levels.
Features
- 6.5″ high power midwoofer
- 25 mm / 1″ voice coil
- Massive aluminium phaseplug
- Conex spider
- Resonance free steel basket
- High efficient 3 ohms version
- Linearised motor
- Incl. protection grill
- Gold plated soldering terminal
- 1 pair / package
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Specification
| Model | High power midwoofer |
|---|---|
| Diameter | 165 mm / 6.50″ |
| Power handling | (RMS/max.) 120 / 160 Watts |
| Impedance | 3 ohms |
| Efficiency | 90 dB |
| Frequency Response | 45 Hz – 15 kHz |
| Voice coil | 25 mm / 1″ |
| Cone | Black anodized aluminum |
| Mounting Ø | 142.5 mm / 5.61″ |
| Mounting depth | 68 mm / 2.68″ |
| Resonance frequency (Fs) | 60.1 Hz |
What's Included
- GZRK 165SQX
Ground Zero
About the Ground Zero GZRK 165SQX
From our tech experts at CEN
Ground Zero 6.5 inch coaxial speakers, rated at 120w 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: Is the GZRK 165SQX sold as a pair?
A: Yes. The GZRK 165SQX is supplied as 1 pair per package.
Q: Does the GZRK 165SQX include a tweeter?
A: No. It is a midwoofer only, with no tweeter or crossover. Pair it with a separate tweeter and crossover, or choose the GZRC 165.2SQX component kit, which uses this midwoofer with the GZRT 25SQ tweeter.
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.
