The factory "6.5-inch" driver in the fairing is actually a 5.25-inch driver stuck in a larger basket – quiet, bass-less, and completely lost when the needle exceeds 90 km/h.
The factory “6.5-inch” fairing speaker is, in reality, a 5.25-inch driver stuffed into a larger basket – quiet, bass-less, and completely drowned out once the speedometer passes 90 km/h. Years of installations have taught me that only true power-sport-grade drop-ins turn a Harley into a mobile stage – without cutting any plastic or voiding the warranty.
Four favorites I trust
Cicada Audio CH65.4 – when you want a concert instead of background music
The Americans went all in on raw numbers: 250 W RMS (500 W peak), frequency range 75 Hz – 20 kHz, 99 dB at 1 W/1 m, and N35 neodymium. Add to that a 12 dB crossover in a separate capsule and a carbon diaphragm that doesn’t tremble at every drop of water. In practice, it’s my pick for Stage-2 – front plus 6×9″ in the saddlebags – because the volume doesn’t stop where most amplifiers say “enough.”
Ground Zero GZCF 6.5 SPL-NEO – a yellow basket with no compromises
If you plan to stick with two drivers, grab this beast. The neodymium motor made it possible to slim down the basket, so it fits into Street or Road Glide without heating up the pods. It handles up to 250 W and goes down to 70 Hz, leaving the Hertz speakers far behind. This is the model I recommend when a customer says, “I’m not cutting anything, but I want bass you can feel in your chest.”
Hertz SX165 Neo – the front workhorse
Dozens of my installations start with the SX-ki: 100W RMS (200W peak), 100Hz–20kHz frequency response, and a 1.4-inch tweeter with a solid-state fuse. The paper-based, yet waterproof, cone survived three seasons of pressure washing in my Ultra without a hitch. It's an ideal first step into four-speaker systems, or a pair with the 6x9-inch SX690Neo in the trunk.
Hertz SV165 Neo – mid-bass that kicks hard in the Tour-Pak
Mid-bass and rhythm guitar require their own workhorse: 150W RMS, 400W peak, and a frequency response of 100Hz–10kHz. It weighs a mere 0.9kg, thanks to the N38H neodymium core, and the waterproof diaphragm with cataphoretic coating is UV- and wash-resistant. It's included in the Tour Pack as a natural complement to the SX speakers at the front.
How do you arrange it on a motorcycle?
- Touring Classic – SX165Neo in the front + SV165Neo in the Tour‑Pack. Driving on the highway at 150km/h and the vocals are still clear, the bass doesn't require a subwoofer.
- Two-speaker sleeper – two YellowBaskets, a 2x100W mini-amp, and absolutely no cables in the saddlebags. The bass is palpable, the bike looks factory-fresh.
- Bagger Show Bike – CicadaCH65.4 + Cicada6×9″, 600W amplifier. At last year's trade show, you could hear the hi-hat a kilometer from the booth.
Tuning – the final, often overlooked step
Set a high-pass filter of 80-100Hz in the DSP for the coaxes in the fairing; leave the mid-bass in the Tour-Pack open at the bottom to "beat" the diaphragm. A gentle +2dB boost at 2kHz will emphasize the guitar, while a slight -2dB correction around 4kHz will temper the aggressive hi-hat cymbal. Only then will the speakers show they can do more than just be loud.
Installation and warranty – some facts
All speakers described here are a drop-in fit: you remove the factory ones, plug the new speakers into the same connectors — no soldering or heating plastic required. Thanks to that:
- The manufacturer's warranty remains - the service has nothing to complain about.
- Water resistance and UV resistance are standard in the powersport class.
- Volume at 140-160km/h is achievable – provided you give the amplifier solid power cables.
From the era of "one JBL," we've moved to a rich ecosystem of Hertz, GroundZero, and Cicada. Each of the kits described here arrives at the factory in less than an hour, and the difference is immediately audible—from LedZeppelin's classic "Kashmir" to modern EDM 808s. Want to see what your Harley might sound like? Call us, stop by for a coffee—the decibel meter is already heating up.
