The RCF CDK455 is a professional-grade compression driver designed for high-quality sound reproduction and long-term reliability. With a 1.75-inch Kapton?/polyimide dome and edge-wound aluminum voice coil, it delivers superior efficiency and durability. Its ceramic magnet and 2-slot optimized phase plug ensure precise frequency response, making it ideal for two-way speaker designs. Engineered with advanced bonding technology and reinforced ribs, this driver offers 140W continuous program power handling and a broad frequency range of 1200Hz – 20kHz.
Product Specifications:
Exit Throat Diameter: 1.0 inch / 25 mm
Impedance: 8Ω
Power Handling: 70W RMS / 140W Program
Sensitivity: 109 dB
Frequency Range: 1200 – 20000 Hz
Diaphragm & Suspension Material: Polyimide
Voice Coil & Magnetics:
Voice Coil Diameter: 1.75 inch / 44 mm
Winding Material: Edgewound Aluminum
Former Design: Straight – Kapton
Layers: Single, Outside Wound
Flux Density: 1.5 T
Magnet Type: Ceramic
Mounting & Dimensions:
Overall Diameter: 102 mm / 4.02 inches
Overall, Height: 47 mm / 1.85 inches
Mounting: 4 x 6 mm threaded holes at 90°
Weight: 1.23 kg / 2.71 lbs
Shipping:
Package Dimensions: 4.8 x 4.84 x 2.91 inches
Package Weight: 1.35 kg / 2.98 lbs

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