1.75-Inch RCF ND340 Compression Driver

The RCF ND340 is a high-performance neodymium compression driver with a 1-inch exit throat, designed for professional audio applications. Featuring a precision-formed polyimide diaphragm, a 2-slot phase plug, and an extremely compact neodymium magnet assembly, it delivers exceptional sound quality with high efficiency. The 1.75-inch voice coil, edge-wound with copper-clad aluminum wire, ensures excellent power handling and durability, making it ideal for demanding audio setups.

Product Specifications:

Exit Throat Diameter: 1.0 inch / 25 mm

Impedance: 8 ohms

Program Power: 100 W

Power Handling Capacity: 50 W

Sensitivity: 109 dB

Frequency Range: 1200 – 20,000 Hz

Diaphragm Material: Polyimide

Suspension Material: Polyimide

Suspension Design: Flat

Minimum Impedance: 6.50 ohm

Voice Coil Diameter: 1.75 inch / 44 mm

Voice Coil Winding Material: Edgewound Aluminum

Voice Coil Former: Straight – Kapton

Number of Layers: 1 (outside wound)

Flux Density: 1.9 T

Phase Plug Design: 2-slot

Phase Plug Material: PP Composite

Magnet Type: Neodymium

Mounting Information

Overall Diameter: 76 mm / 2.99 inches

Overall, Height: 39 mm / 1.54 inches

Mounting: 4 x 5 mm threaded holes at 90°

Compliance & Safety

Standard Compliance: CE Compliant

Shipping Information

Package Height: 65 mm / 2.56 inches

Package Width: 95 mm / 3.74 inches

Package Depth: 97 mm / 3.82 inches

Package Weight: 0.81 kg / 1.79 lbs