Cicada Audio CH65.2C — Larry Frederick Classic 6.5″ Horn Coaxial Motorcycle Speakers (2Ω)

What’s Inside the CH65.2C

The tweeter is an aluminium dome in a horn waveguide — the defining element of the CH65 Classic. Horn loading increases the efficiency of the tweeter element significantly: the horn waveguide couples the dome’s output to the air more effectively than a free-air dome, which is why the CH65.2C measures 96.4 dB sensitivity against a typical 91 dB for a dome tweeter coaxial. The aluminium dome itself delivers a bright, extended, low-distortion high-frequency response — harder and more projected in character than a soft dome or PEI dome. On the road: presence-forward treble that cuts through wind and engine noise at highway speed.

The mid-bass cone is water resistant treated paper — lightweight, thermally stable, and efficiently coupled to the motor. Paper cones produce a fast, responsive, efficient mid-bass character. The 1.4-inch / 36mm tweeter voice coil is wound with OFC copper wire for low resistance and thermal stability. The 2-inch / 51mm mid-bass voice coil uses Black Coat™ OFC copper — Cicada’s high-conductivity, thermally optimised winding treatment that reduces resistance and handles the thermal load of sustained 250W RMS operation. On the road: consistent mid-bass output without thermal compression across a long riding day.

The motor is an N35SH neodymium — H-grade temperature rating for sustained thermal stability. The die-cast aluminium basket with Vortex Flow Venting™ provides structural rigidity and active thermal management, channelling airflow through the motor to control heat build-up at high output levels.

The external 12 dB crossover is custom-tooled, vented, and encased — mounted outside the main driver assembly and protected from weather and vibration. The crossover point sits at 4 kHz, where the horn tweeter takes over from the mid-bass cone with a 12 dB/octave slope.

Sensitivity and Frequency Coverage

At 96.4 dB (1W/1m), the CH65.2C is significantly more sensitive than a standard motorcycle coaxial. The practical effect is measurable: a 5 dB sensitivity advantage over a 91 dB speaker means the CH65.2C requires approximately one-third the amplifier power to produce the same SPL — or produces substantially more output at the same power level. On a Harley at highway speed where every decibel matters, that difference is not subtle.

Frequency response runs 75 Hz – 20 kHz (±5 dB) — the natural operating range for a 6.5-inch coaxial horn covering mid and high frequencies. In a system with a dedicated subwoofer or mid-bass channel handling the low end, the CH65.2C fills its frequency responsibility with the output level that makes it audible over the riding environment.

Why 2Ω — Amplifier Pairing

Dedicated motorcycle amplifiers including the FLX700.4 and FLX1000.4 publish their rated output at 2Ω. At 250W RMS power capacity, the CH65.2C is built for exactly those operating conditions — extracting full rated output from the amplifier into a speaker capable of handling it. For bridged configurations requiring a 4Ω minimum load, or conservative builds where amplifier thermal margin is a priority, the CH65.4C (4Ω) is the correct impedance choice.

Fitment

• A purpose-built 6.5-inch driver for the 2014–2023 Harley-Davidson® batwing Touring fairing and the 2015–2023 Road Glide® fairing. 0.5-inch spacer included for models where additional depth is required.
• Harley-Davidson Street Glide® (2014–2023): Inner fairing. The factory driver here was 5.25 inch on most standard models and 6.5 inch on some CVO™ and higher-specification factory audio packages.
• Harley-Davidson Road Glide® (2015–2023): Inner fairing. There was no 2014 model-year Road Glide® — the generations are 1998–2013, 2015–2023 and 2024 onward.
• Harley-Davidson Electra Glide® / Ultra Limited (2014–2023): Inner fairing, and Tour-Pak pods where fitted — OEM Tour-Pak pods take up to a 6.5-inch driver, and the factory driver in this era was 5.25 inch.
• Harley-Davidson CVO™ models (2014–2023): Inner fairing. This is the tier where a 6.5-inch fairing driver was actually fitted at the factory on some models and audio packages.
• Speaker-ready or accessory lower fairings: Take a 6.5-inch driver where fitted. The lower fairing is not a factory speaker position on standard models.
• Not scoped to 2024 onward (Skyline OS). Those fairings use redesigned enclosures and mounting, so fitment from the 2014–2023 generation must not be assumed. On that platform the standard Street Glide® (FLHX) and Road Glide® (FLTRX) run two 5.25-inch fairing drivers with no factory rear position, while Limited and CVO™ run 6.5 inch.
• Confirm the mounting hardware, cutout and depth for your exact model and factory audio package before ordering. Harley does not publish a fairing mounting-opening dimension, so bracket and grille hardware can vary between models and audio packages.
• Mounting Depth: 76 mm (3.0 in). Mounting Diameter (cutout): 145.5 mm (5.7 in).
• Requires a dedicated external amplifier rated at 2Ω — FLX700.4, FLX1000.4, and other 2Ω-stable motorcycle amplifiers.

Technical Specifications