18 Sound 21LW2600 - Subwoofer 21” 8 Ohm - 1600W AES - 97dB@1W/1mt

21” Extended LF Driver - 4” vc - 1600W AES - 97dB@1W/1mt - ISV - Active Cooling

Manual

General

• Product type Cone driver
• Brand Eighteen Sound
• Reference 21LW2600
• Product code ALT212600WF08FA

Informations

• Nominal impedance 8 ohm
• Dimensional category 21 inch
• Frequency coverage type Sub, Low
• Manufacturer sensitivity 97 dB
• Calculated sensitivity 94.7 dB
• Nominal power handling 160 W
• Max power handling 3200 W
• Bandwidth 35÷1400 Hz

Fundamental parameters

• Sd 1660 cm²
• Mms 398 gr
• Le 2.67 mH
• Re 5.2 ohm
• BL 32.5 T.m

Small signal parameters

• Fs 27 Hz
• Qes 0.34
• Qms 23.1
• Qts 0.33
• Vas 333 L
• Datas
• Xmax ±14.6 mm
• Xvar, Xmech, Xlim ±17 mm
• EBP 79 Hz
• Zmin 6.6 ohm
• Fs / Qts 82 Hz
• Vas * Qts² 36.27 L
• Efficiency 2 %
• Calculated efficiency 1.86 %
• Weight ~17.1 kg
• Demodulation ring Yes

Dimensions

• Voice coil diameter 4 inch
• Outside diameter 545 mm
• Baffle cutout diameter 492 mm
• Depth 245 mm
• Front thickness 18 mm
• Depth after front 227 mm
• Shape & Materials
• Front chape Cylindrical
• Magnet type Ferrite
• Basket masterial Aluminium
• Surround shape Triple roll
• Surround material Cloth