The RCF ND650 is a high-performance 2.5-inch diaphragm compression driver with a 1.4-inch exit throat, designed for precise and powerful high-frequency reproduction. Featuring a pure titanium diaphragm, a 3-slot optimized phase plug, and a neodymium magnet assembly, it delivers exceptional efficiency and clarity. The vented polyester suspension minimizes distortion, while the copper inductance ring extends the frequency response. With 180W continuous program power handling and 110 dB sensitivity, the ND650 is ideal for professional audio applications requiring accurate and dynamic sound performance.

Product Specifications:

Exit Throat Diameter: 1.4 inches (36 mm)

Impedance: 8 ohms

Program Power Handling: 180W

Continuous Power Handling: 90W

Sensitivity: 110 dB

Frequency Range: 700Hz 20kHz

Diaphragm Material: Pure Titanium

Suspension Material: Polyester

Suspension Design: Flat

Minimum Impedance: 7.5 ohms

Voice Coil Diameter: 2.5 inches (63 mm)

Voice Coil Winding Material: Edgewound Aluminum

Voice Coil Former Design: Straight – Kapton

Number of Layers: 1 (outside)

Flux Density: 2.0 T

Phase Plug & Magnetics

Phase Plug Design: 3-slot

Phase Plug Material: Aluminum

Magnet Type: Neodymium

Voice Coil Demodulation Ring: Copper

Mounting Information

Overall Diameter: 115 mm / 4.53 inches

Overall, Height: 46 mm / 1.81 inches

Mounting: 4 x 6 mm threaded holes at 90

Compliance & Certifications

Safety Certification: CE compliant

Weight: 1.88 kg / 4.14 lbs

Shipping Information:

Package Dimensions (H x W x D): 63 mm x 142 mm x 144 mm (2.48″ x 5.59″ x 5.67″)

Package Weight: 2.02 kg / 4.45 lbs