Ground Zero GZCF 6.5XSPL — Yellow Basket 6.5 Coaxial Speakers (Pair)
Ground Zero GZCF 6.5XSPL — Yellow Basket 6.5 Coaxial Speakers (Pair)
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Ground Zero GZCF 6.5XSPL 6.5" Coaxial Speakers, Yellow Basket (Pair)
The Ground Zero GZCF 6.5XSPL is the yellow basket 6.5" (165mm) coaxial, sold as a pair and built on a ferrite motor with a 1.5" copper-clad aluminum flatwire voice coil. It is rated at 100 watts RMS and 250 watts max, 4Ω and 94dB efficiency, and needs a 5.71" (145mm) cutout with 2.76" (70mm) of mounting depth.
Yellow Basket 6.5" Coaxial Pair, 94dB
A ferrite-motor two-way coaxial pair with an integrated 1.1" PEI tweeter on a 12dB/octave high-pass filter, so no separate tweeter location is needed.
- 100 watts RMS / 250 watts max
- 94dB efficiency, 4Ω
- Hexagon-style protection grills included
Key Product Details
| Product | Ground Zero GZCF 6.5XSPL 6.5" Coaxial Speakers (Yellow Basket) |
| Impedance | 4Ω |
| Power Handling | 100W RMS / 250W max |
| Mounting | 5.71" / 145mm cutout, 2.76" / 70mm depth |
| Sold As | Pair |
Always verify impedance, speaker location, mounting depth, amplifier power, wiring, crossover setup, and final fitment before ordering for your Harley-Davidson audio build.
A High-Efficiency Two-Way Coaxial
The GZCF 6.5XSPL combines a pressed paper cone and a high-excursion foamed W-surround with an integrated PEI tweeter. Ground Zero treats the speaker to resist UV and water.
- Integrated two-way coaxial design.
- Resonance-free steel basket with a ferrite motor.
- 12dB/octave high-pass filter for the tweeter.
Specifications
| Size | 6.5" / 165mm, 2-way coaxial |
| Impedance | 4Ω |
| Power Handling | 100 watts RMS / 250 watts max |
| Efficiency | 94dB |
| Frequency Response | 50Hz–20kHz |
| Voice Coil | 1.5" copper-clad aluminum flatwire |
| Tweeter | 1.1" / 28mm PEI |
| Crossover | 12dB/octave high-pass filter |
| Mounting Cutout | 5.71" / 145mm |
| Mounting Depth | 2.76" / 70mm |
Fitment and System Planning
Confirm speaker depth, mounting diameter, pod and grille clearance, wiring path, impedance and amplifier compatibility before installation.
Road Glide, Street Glide, CVO and custom bagger applications can need adapters, rings or pods depending on the year and layout. If you are unsure, confirm your year and model with Garage Bagger Stereo before ordering the GZCF 6.5XSPL.
What to Pair With the GZCF 6.5XSPL
These parts help you power, wire and tune the speakers correctly.
Motorcycle Amplifiers
Power the speakers with an amplifier built for Harley-Davidson audio.
Motorcycle DSP
Tune the system with a digital sound processor built for Harley-Davidson audio.
Speaker Installation Parts
Adapters, rings, grilles and mounting parts for speaker installs.
Ground Zero Motorcycle Audio
More Ground Zero speakers and subwoofers.
Related Ground Zero & Motorcycle Audio Paths
Build the system around the correct speaker, amplifier, DSP, wiring, and installation parts. These related collections help match the GZCF 6.5XSPL with the right Harley audio upgrade path.
Best Use for the GZCF 6.5XSPL
Choose it for a straightforward coaxial upgrade where one speaker per location handles the full range.
Amplified System Recommended
These speakers are intended for serious motorcycle audio systems. For best results, match the GZCF 6.5XSPL with proper amplifier power, correct impedance, clean wiring, and a real tuning plan.
Ground Zero GZCF 6.5XSPL FAQ
What impedance is the GZCF 6.5XSPL?
It is a 4Ω speaker. Match it to an amplifier and wiring plan that supports 4Ω.
How much power can it handle?
Ground Zero rates it at 100 watts RMS and 250 watts max.
What are the mounting dimensions?
Ground Zero lists a 5.71 inch (145mm) mounting cutout and a 2.76 inch (70mm) mounting depth. Verify the available depth and cutout in your speaker location before ordering.
Are the GZCF 6.5XSPL speakers sold as a pair?
Yes. This listing is a pair and includes hexagon-style protection grills.
What else do I need to run the GZCF 6.5XSPL?
Plan for an amplifier that matches the speaker impedance and power handling, OFC speaker wire, clean signal input, and a tuning plan such as a DSP. Garage Bagger Stereo can help you match the parts to your bike.
Does Garage Bagger Stereo install the GZCF 6.5XSPL?
Garage Bagger Stereo offers motorcycle audio installation at our Taylors, SC shop and can help you plan a DIY install. Start a Build Consultation or call 864-334-6131 to check scheduling.
Need Help Choosing?
Tell us your bike, model year and what you want to add, and we will confirm fitment and the right parts before you order.
Similar Products
Ground Zero 6.5 Speakers Compared: Yellow Basket, NEO and Midrange
Ground Zero makes several 6.5" speakers, and they aren't interchangeable. The yellow basket GZCF 6.5XSPL is a two-way coaxial with a built-in 1.1" PEI tweeter, so one speaker per location covers the full range.
The black basket GZCF 6.5XSPL-NEO is the other 6.5" coaxial. The GZCK 165XSPL and the carbon GZCM 6.5N-PROC are midrange drivers with no tweeter; they need a horn or tweeter alongside them. See the whole lineup in Ground Zero.
Installing Yellow Basket 6.5s in a Harley Fairing
Ground Zero lists 2.76" of mounting depth and a 5.71" cutout. Measure the space behind your fairing grille before you order. Depending on the year and layout, a Street Glide, a Road Glide or a custom fairing can need adapters, rings or pods. Find those in speaker installation parts.
These are rated 100 watts RMS at 4 ohms, so they want an amp, not a factory radio. A four-channel motorcycle amplifier runs the fairing pair and the lids.
More Ground Zero GZCF 6.5XSPL — Yellow Basket 6.5 Coaxial Speakers (Pair) Questions
Do yellow basket speakers need separate tweeters?
No. The GZCF 6.5XSPL is a coaxial with a built-in 1.1 inch PEI tweeter on a 12dB per octave high-pass filter.
Will Ground Zero yellow basket speakers run on a factory radio?
They will play, but they are rated 100 watts RMS at 4 ohms. Run them on an amplifier to hear what they can do.
What is the difference between the yellow basket and the GZCK 165XSPL?
The yellow basket GZCF 6.5XSPL is a coaxial with a built-in tweeter. The GZCK 165XSPL is a midrange driver with no tweeter, so it needs a horn or tweeter with it.