Description
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
Financing Options
Hassle-Free Financing Available
Get the gear you need now and pay over time. Perfect for working DJs, artists, and sound pros who need pro-grade speakers, lighting, and cases to stay competitive.
- Shop Pay & Afterpay for instant financing right at checkout
- Acima, Synchrony, Progressive & Snap lease-to-own and financing options
- Fast approvals so you buy today and pay monthly
Military & First Responder Discounts
We're proud to support those who serve. Active-duty military, veterans, and first responders qualify for a special discount on your gear. See our Military Discount details here and how to redeem.

