100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
3200W program power handling
70 mm (2,76 in) peak to peak excursion
Ultra linear dual magnet motor design
Single Demodulating Ring (SDR) for lower distortion
Composite reinforced straight ribbed cone
Optimized high grade ferrite magnet assembly
Recommended for subwoofer usage in compact vented enclosures
The 18LW2500 is a 18" (466 mm) extended low frequency loudspeaker, designed for use in vented enclosures. The loudspeaker is designed to withstand high power levels without damage while providing clean and undistorted LF reproduction at a very high SPL. For optimum results we recommend amplifiers able to deliver 3400 Watt program power. The 18LW2500 features a unique motor featuring a high grade ferrit magnet assembly in a structure optimized for thermal and magnetic efficiency. 18LW2500 features include a large displacement suspension system which, in conjunction with a composite reinforced, straight ribbed cone and the Eighteen Sound proprietary Double Silicon Spider (DSS) technology, allows an ultra-linear piston action and provides full mechanical control across the entire working range. The 100mm (4 in) state-of-the-art voice-coil utilizing Interleaved Sandwich Voice coil (ISV) technology, provides high levels of thermal stability and durability. The ISV technology achieves a balanced linear motor unit exerting an exceptionally high force factor.
Nominal Diameter
462 mm
Nominal Impedance
4 Ohm
Minimum Impedance
3,4 Ohm
Nominal Power Handling1
1600 W
Continuous Power Handling2
3200 W
Sensitivity3
95,0 dB
Frequency Range
30 - 1000 Hz
Voice Coil Diameter
100 mm
Winding Material
copper
Surround Shape
Triple roll
Cone Shape
Curvilinear
Recommended Enclosure
200,0 dm3
Recommended Tuning
35 Hz
Resonance Frequency
35 Hz
Re
2,6 Ohm
Qes
0,45
Qms
18,4
Qts
0,44
Vas
135,0 dm3
Sd
1130,0 cm2
Xmax
14,0 mm
Mms
290,0 g
Bl
20,0 Txm
Le
1,8 mH
EBP
77 Hz
Overall Diameter
462 mm
Bolt Circle Diameter
440 mm
Baffle Cutout Diameter
416,0 mm
Depth
234 mm
Flange and Gasket Thickness
26 mm
Net Weight
16,7 kg
Shipping Weight
18,2 kg
Shipping Box
482x482x257 mm
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