Description
Included in this kit
This bundle includes a Cicada Audio FLX500.4 125w x 4CH AMPLIFIER, a Cicada Audio CH65.4C High Efficiency 6.5-Inch Horn Coaxial Speakers - 4Ω - Original Classic Design, a Cicada Audio CHDRGG - H-D 2014-2023 RG Kidney Grill - PR, a Cicada Audio CHDSGG - H-D 2014-2023 SG Round Grill, Pair, a Cicada Audio HDPG8K - 8 Gauge Power/Ground Kit, a Cicada Audio HDFLXFo Front Speaker to FLX Amplifier Output Harness for 2014+ Harley-Davidson FLX Systems Plug‑and‑Play Front Pod Adapter, a Cicada Audio HDFiMY - H-D Input Molex -FRONT/Y Adaptor, a Cicada Audio 14HDAR-RG - CX/DSP/FLX Amplifier Mounting System H-D® Road Glide ®, and a Cicada Audio 14HDAR-SG - CX/DSP/FLX Amplifier Mounting System H-D® Street Glide ®.
1x Cicada Audio FLX500.4 125w x 4CH AMPLIFIER (FLX500.4)
Clean Power. Compact Footprint. True Cicada Performance.
The FLX500.4 is a compact, high‑efficiency 4‑channel amplifier engineered for motorcycles, powersports, marine, and small‑format automotive systems. Delivering impressive output in a micro‑sized chassis, it’s designed to integrate seamlessly into tight installs while maintaining the clarity, reliability, and dynamic range Cicada amplifiers are known for.
FEATURES
Ultra‑Compact Design
Small‑format chassis engineered to fit inside fairings, saddlebags, kick panels, and other tight mounting locations without sacrificing performance.
High‑Efficiency Class‑D Platform
Delivers strong power output with reduced heat and electrical load, ideal for motorcycles and vehicles with limited charging systems.
Flexible Crossover Control
Selectable LPF / FULL / HPF crossover with a wide adjustment range (20 Hz – 20 kHz) and steep selectable slopes (6 / 12 / 24 / 48 dB per octave) for precision system tuning.
OEM‑Friendly Integration
Multiple turn‑on options — REM, DC, or VOX — make it easy to integrate with factory head units and custom installations.
Precision Audio Control
Wide gain range (0.2V – 12V) accommodates factory and aftermarket source units, DSPs, and high‑output preamps.
Rugged Build Quality
Built with durable components and a compact aluminum housing for long‑term reliability in harsh motorcycle and outdoor environments.
SPECIFICATIONS
RMS Power Output (14.4V)
4‑Channel Stereo Mode:
95W × 4 @ 4 Ω
125W × 4 @ 2 Ω
2‑Channel Bridged Mode:
250W × 2 @ 4 Ω
Performance Metrics
Signal‑to‑Noise Ratio: 91 dB (A‑weighted, 20 Hz – 20 kHz)
Operating Voltage: 9V – 16V
Current Draw (Music): 50 A
Current Draw (Max): 80 A
Recommended Fuse: 50 A
Total Efficiency: 80%
Frequency Response: 20 Hz – 20 kHz (±3 dB)
Damping Factor: 200
THD + N (10% rated power): 0.1% @ 2 Ω per channel
1x Cicada Audio CH65.4C High Efficiency 6.5-Inch Horn Coaxial Speakers - 4Ω - Original Classic Design (CH65.4C)
6.5" 4-Ohm Coaxial Horn Driver – 250W RMS
This 6.5-inch 4-ohm coaxial horn driver is built around the Larry Frederick Original Classic Design and engineered for high-efficiency output in 2014+ H-D® factory locations (some models include a 0.5-inch spacer). With 250 watts RMS and 500 watts max power handling, it delivers strong mid-bass impact and crisp high-frequency response in a factory-fit footprint.
Performance Highlights
- 250W RMS / 500W MAX power handling
- 96.4 dB sensitivity (1W/1M)
- 75Hz – 20kHz frequency response (±5 dB)
- 4-ohm impedance for amplifier efficiency
- 12 dB crossover at 4 kHz
Tweeter & Crossover Engineering
The aluminum dome tweeter uses a 1.4-inch (36mm) OFC copper voice coil to deliver brighter sound and maximized efficiency while minimizing heat buildup. A custom-tooled, vented, encased external 12 dB crossover network is precisely tuned at 4 kHz for smooth transition between mid-bass and high frequencies.
Mid-Bass & Motor Structure
A lightweight, water-resistant treated paper cone provides efficient output and high-temperature durability. The 2-inch (51mm) OFC copper mid-bass voice coil with Black Coat™ ensures high conductivity, low resistance, and strong thermal performance under load.
The N35SH Neodymium magnet motor structure and custom die-cast aluminum basket with Vortex Flow Venting™ improve cooling and structural rigidity for consistent performance at higher output levels.
Fitment & Installation
Designed for 2014+ H-D® factory locations, with select models including a 0.5-inch spacer for proper fitment.
- Mounting Depth: 3.0" (76.2 mm)
- Mounting Diameter: 5.7" (145.5 mm)
Specifications
| Speaker Size | 6.5-inch |
|---|---|
| Impedance | 4 Ohm |
| Power Handling (RMS) | 250 Watts |
| Power Handling (Max) | 500 Watts |
| Sensitivity | 96.4 dB (1W/1M) |
| Frequency Response | 75Hz – 20kHz ±5 dB |
| Mid-Bass Voice Coil | 2-inch (51mm) OFC Copper |
| Tweeter Voice Coil | 1.4-inch (36mm) OFC Copper |
| Tweeter Dome | Aluminum |
| Crossover | 12 dB @ 4 kHz (External) |
| Cone Material | Water-Resistant Treated Paper |
| Magnet | N35SH Neodymium |
| Mounting Depth | 3.0-inch (76.2 mm) |
| Mounting Diameter | 5.7-inch (145.5 mm) |
| Warranty | 2 Years |
1x Cicada Audio CHDRGG - H-D 2014-2023 RG Kidney Grill - PR (CHDRGG)
Custom tooled Road Glide(R) replacement grill for increased height for CH/CM series speakers.
1x Cicada Audio CHDSGG - H-D 2014-2023 SG Round Grill, Pair (CHDSGG)
Custom tooled Street Glide® replacement grills add additional depth required for aftermarket speaker upgrades.
1x Cicada Audio HDPG8K - 8 Gauge Power/Ground Kit (HDPG8K)
HD 8 Gauge Power Harness Kit
1x Cicada Audio HDFLXFo Front Speaker to FLX Amplifier Output Harness for 2014+ Harley-Davidson FLX Systems Plug‑and‑Play Front Pod Adapter (HDFLXFO)
H-D® SPEAKER TO CICADA AUDIO® FLX AMPLIFIER OUTPUT – FRONT
1x Cicada Audio HDFiMY - H-D Input Molex -FRONT/Y Adaptor (HDFIMY)
H-D Input Molex -FRONT/Y Adaptor
1x Cicada Audio 14HDAR-RG - CX/DSP/FLX Amplifier Mounting System H-D® Road Glide ® (14HDAR-RG)
Amplifier Mounting Rack for 2014-2023 H-D® Road Glide®
HASSLE-FREE INSTALLATION
Mount amp to stainless steel chassis and easily slide in under the fairing mounted radio.
NOTE: Place amplifier input side toward the driver, power and ground input toward the headlight!
Powder coated
Stainless steel construction
Mounting hardware included
Designed for CX/FLX/DSP600.4D style amplifiers only
1x Cicada Audio 14HDAR-SG - CX/DSP/FLX Amplifier Mounting System H-D® Street Glide ® (14HDAR-SG)
Amplifier Mounting Rack for 2014-2023 H-D® Street Glide®
HASSLE-FREE INSTALLATION
Velcro® mount amp to stainless steel tray between the head unit and the headlight.
Powder coated
Stainless steel construction
Mounting hardware included
Designed for CX/FLX/DSP600.4D style amplifiers only