RCF ND350 - 100W 1.75-inch Polyester Compression Driver with 1-inch Exit Throat and 8-Ohm Impedance in Black Finish

The RCF ND350 is a high-performance 1.75-inch diaphragm compression driver designed for exceptional high-frequency reproduction with a 1-inch exit throat. Featuring a precision-formed polyester diaphragm, this driver delivers excellent clarity and performance across its operating frequency range of 1200 Hz to 20 kHz. The ND350 is ideal for use in professional audio systems where compact size, high sensitivity, and low distortion are essential for delivering clear, dynamic sound.

At the heart of the ND350 is a high-quality neodymium magnet assembly, which ensures high efficiency and excellent transient response. This is complemented by a state-of-the-art 2-slot optimized geometry phase plug that minimizes distortion and provides smooth high-frequency reproduction. The diaphragm is made from durable polyester, chosen for its lightweight properties and low distortion characteristics. This design, coupled with a vented suspension system, guarantees a controlled, low-distortion response across the frequency range.

The voice coil is crafted using high-temperature Kapton for excellent thermal management and edge-wound aluminum wire for high performance under high-power conditions. These features are assembled with advanced adhesives, ensuring durability and long-lasting reliability. The ND350 is capable of handling up to 100W of continuous program power at 8 ohms, making it suitable for a wide range of professional audio applications, from live sound to fixed installations.

With a sensitivity of 109 dB, the ND350 provides exceptional output for its size, making it an excellent choice for two-way or three-way speaker designs. It offers great performance in compact enclosures, where space is limited, but high output and clarity are still required. The ND350 is CE compliant, ensuring it meets rigorous standards for safety and performance.

Features

• 1.75-inch polyester diaphragm for excellent high-frequency performance
• 100W continuous program power handling at 8 ohms
• Frequency range from 1200 Hz to 20 kHz for superior clarity
• 2-slot optimized geometry phase plug for smooth, low-distortion output
• Vented suspension system for enhanced low-frequency extension and reduced distortion
• Neodymium magnet assembly for high efficiency and excellent transient response
• Edge-wound aluminum voice coil with a high-temperature Kapton former for excellent thermal stability
• 109 dB sensitivity for exceptional output
• Compact design, ideal for space-constrained applications
• CE compliant for safety and reliability

Specifications

General Specifications

• Exit Throat Diameter: 1.0 inch / 25 mm
• Related Impedance: 8 ohm
• Program Power (watt): 100 W
• Power handling capacity: 50 W
• Sensitivity: 109 dB
• Frequency range: 1200 - 20000 Hz
• Diaphragm Material: Polyester
• Suspension Material: Polyester
• Suspension Design: Flat
• Minimum Impedance (ohm): 6.50 ohm
• Voice Coil Diameter: 1.75 inch / 44 mm
• Voice Coil Winding Material: Edgewound Aluminum
• Voice Coil Former Design: Straight - Kapton
• Number of layers: 1
• Kind of layers: outside
• Flux Density: 1.8 T
• Phase Plug Design: 2 slot
• Phase Plug Material: PP Composite
• Magnetics: Neodymium

Thiele (small parameters)

• Bl factor (Bl) (T x m): 7.50 T x m

Mounting Information

• Overall diameter: 85 mm / 3.35 inches
• Overall height: 43 mm / 1.69 inches
• Mounting: 2 x 6 mm threaded holes at 90°

Standard Compliance

• Safety agency: CE compliant

Size/Weight

• Weight: 1.87 lbs

Shipping Information

• Package Height: 2.56 inches
• Package Width: 4.37 inches
• Package Depth: 4.45 inches
• Package Weight: 1.96 lbs