REDCATT 18XR - 4 Ohm

REDCATT 18XR - 4 Ohm Sub-woofer

Key Features

• Cone excursion 56mm !! Patented design.
• 1 demodulation copper ring, powerful and innovative motor structure, innovative venting system
• Extra large double spider with spacer, woven-in tinsel wires. Reinforced cone edge, optimized surround

Design Notes

The 18XR is a truly groundbreaking subwoofer. REDCATT team has spent countless hours creating something outstanding. Where the conventional sub-woofers stop performing due to the design limitations, the XR series just starts and shines. With huge excursion, high Bl, newly designed suspension system, we are giving you a product that will not limit you to achieve even your wildest sub-woofer dreams. Motor Design The magnetic design incorporates large neodymium magnets placed along the voice coil winding. This has allowed us to push the cone excursion to 56mm peak to peak. Unique gap venting ensures good air circulation and greatly improves the reliability of this driver. We have also developed a new technique for manufacturing deep copper caps. The design further utilizes two, uncommonly large, spiders, spaced apart with spacer, hot-pressed tinsel wires onto the top spider, reinforced cone. The suspension is designed for large excursions. Large lightweight surround sports resonant control features that we fully FEM designed and optimized to provide the best possible performance under large excursions.

Specifications
General Specs

• Nominal Diameter: 18 inch
• Rated Impedance: 4 Ohm

Power Handling

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

Voice Coil

• Diameter: 4 inch
• Winding wire : Copper
• Former: Glass Fiber
• Winding height: 22 mm

T/S Parameters

• Resonant frequency: 21Hz
• Re: 3.3ohm
• Qes: 0,36
• Qms: 17
• Qts: 0,35
• VAS: 300L
• Sd: 1256.6cm2
• Mms: 402g
• BL: 22.2
• Le: 0,54
• Sensivity: 92,07 dB

Design Details

• Surround material: Rubber
• Cone material: Paper
• Spider: Nomex
• Plate thickness: 56 mm
• Peak to peak linear cone displacement: 36 mm
• Overall diameter: 467,6 mm
• Bolt circle diameter: 442 mm
• Baffle cutout dia: 422 mm
• Number of mounting holes: 8
• Depth (flange to rear): 257,2 mm
• Net weight: 14.7kg