REDCATT 18NPW - 8 Ohm

REDCATT 18NPW - 8 Ohm Woofer

Key Features

• Strong glass fiber loaded cone
• High temperature voice coil, double layer silicone spider
• High power handling

Design Notes

The 18NPW is a high efficiency, (98 dB 1watt / 1 meter) 18-inch woofer with incredibly linear frequency response characteristics, extreme high power handling capability while generating low harmonic distortion artifacts. The 18NPW uses a lightweight, but strong, glass fiber loaded cone assembly along with a high excursion triple roll constant geometry surround. This combination provides remarkable strength, high efficiency and a peak to peak maximum excursion of 30mm. Power Handling At the core of the 18NPW is it’s voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures in excess of 350°C, well beyond the thermal requirements of modern professional audio systems. The 18NPW delivers incredible performance. REDCATT has implemented a double layer/silicone spider design to ensure long term Fs memory, consistency and diminish anomalies associated with spider deterioration. The sealed spider works as a air pump and pushes the air trough out motor to increase heat transfer and cooling of the parts.

Specifications
General Specs

• Nominal Diameter: 18 inch
• Rated Impedance: 8 Ohm

Power Handling

• AES Power: 1200 Watts
• Program Power: 2400 Watts

Voice Coil

• Diameter: 4 inch
• Winding wire : Copper
• Former: Glass Fiber
• Winding height: 23,7 mm

T/S Parameters

• Resonant frequency: 36Hz
• Re: 5.1ohm
• Qes: 0,31
• Qms: 4,7
• Qts: 0,3
• VAS: 216.6L
• Sd: 1257cm2
• Mms: 201g
• BL: 27.3
• Le: 1,51
• Sensivity: 99,14 dB

Design Details

• Surround material: Fabric
• Cone material: Paper
• Spider: Nomex
• Plate thickness: 14 mm
• Peak to peak linear cone displacement: 18,85 mm
• Overall diameter: 468 mm
• Bolt circle diameter: 442 mm
• Baffle cutout dia: 426 mm
• Number of mounting holes: 8
• Depth (flange to rear): 189 mm
• Net weight: 9.4kg