RCF NDX495 Exit: 1" 70W rms, 140W program. 109dB, 1.2-20KHz -PKX Polymer
RCF NDX495 Exit: 1" 70W rms, 140W program. 109dB, 1.2-20KHz -PKX Polymer
SKU: NDX495
Available options

Description
RCF NDX495 Exit: 1" 70W rms, 140W program. 109dB, 1.2-20KHz -PKX Polymer
The 1.75" PKX dome NDX495 is a compression driver for professional applications where high-quality sound and long-term reliability are required. The ultra-compact size and the low recommended crossover point from 1000 Hz make this transducer ideal for two-way cabinet designs and three-way loudspeaker systems. PKX (modified polyether ether ketone) is a rigid yet lightweight material, optimized with reinforcing ribs, offering remarkable precision and reliability compared with other polymeric materials. The voice coil utilizes ultralight edge wound aluminum wire, class-leading neodymium magnets, a 4-slot phase plug, and a copper ring design to deliver exceptional power handling, sensitivity, and low distortion across its operating bandwidth. The driver specifies 140 Watts of continuous power handling, with a sensitivity of of 109 dB.
Features
- 1.75-inch PKX dome, polyimide surround
- Kapton former, edge wound aluminum voice coil
- 140W continuous program power handling @ 8O
- Frequency range: 500Hz - 20kHz
- 4-slot optimized geometry phase plug
- Copper inductance ring for extended response
- High-flux density neodymium magnet
- Recommended for 2-way speaker design
Specifications
General specifications
- Exit Throat Diameter : 1.0 inch / 25 mm
- Related Impedance : 8 ohm
- Program Power (watt) : 140 W
- Power handling capacity : 70 W
- Sensitivity : 109 dB
- Frequency range : 1200 - 20000 Hz
- Diaphragm Material : PKX Polymer
- Suspension Material : PKX Polymer
- 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 : 3 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 : 44 mm / 1.73 inches
- Mounting : 4 x 6 mm threaded holes at 90°
Standard compliance
- Safety agency : CE compliant
Size / Weight
- Weight : 0.85 kg / 1.87 lbs
Shipping information
- Package Height : 65 mm / 2.56 inches
- Package Width : 111 mm / 4.37 inches
- Package Depth : 113 mm / 4.45 inches
- Package Weight : 0.89 kg / 1.96 lbs