18 Sound 18NLW9000-4 - Subwoofer 18” 4 Ohm - 1800W AES - 96.5 dB@1W/1mt

18” Extended LF Neodymium Driver - 5,3” vc - 1800W AES - 96,5dB@1W/1mt - ISV - SDR - TSS

Manual

General

• Product type Cone driver
• Brand Eighteen Sound
• Reference 18NLW9000

Informations

• Nominal impedance 4 ohm
• Dimensional category 18 inch
• Frequency coverage type Sub, Low
• Manufacturer sensitivity 97 dB
• Calculated sensitivity 97.5 dB
• Nominal power handling 1800 W
• Max power handling 3600 W
• Bandwidth 32÷2500 Hz
• Fundamental parameters
• Sd 1222 cm²
• Mms 228 gr
• Le 1.2 mH
• Re 3.1 ohm
• BL 25 T.m

Small signal parameters

• Fs 32 Hz
• Qes 0.22
• Qms 5
• Qts 0.21
• Vas 247 L
• Datas
• Xmax ±14 mm
• EBP 145 Hz
• Zmin 4.1 ohm
• Fs / Qts 152 Hz
• Vas * Qts² 10.9 L
• Calculated efficiency 3.54 %
• Weight ~12.5 kg
• Demodulation ring Yes

Dimensions

• Voice coil diameter 5.31 inch
• Outside diameter 462 mm
• Baffle cutout diameter 422 mm
• Depth 235.5 mm
• Front thickness 23.5 mm
• Depth after front 212 mm
• Diamètre aimant (mm) 170 mm
• Shape & Materials
• Front chape Cylindrical
• Magnet type Neodymium
• Basket masterial Aluminium
• Winding material Copper
• Surround shape Triple roll
• Surround material Cloth