JL Audio 8W3V3-4

Description

The 8W3V3-4 is an 8-inch subwoofer from the popular audio manufacturer JL Audio. This subwoofer is part of the W3v3 series, which has established itself as a JL Audio bestseller thanks to its unbeatable price-performance ratio. With a continuous power handling of 250W and 4 ohms, this subwoofer delivers outstanding bass in an extremely compact form. Whether in a sealed enclosure or a bass reflex enclosure, the 8W3V3-4 impresses with its performance and accuracy. It is the perfect subwoofer for lovers of deep and precise bass. 

Features

• W3v3 8-inch subwoofer (250 W, 4 Ω)
  
• If you need an 8-inch subwoofer that can produce excellent bass in extremely small cabinets, the 8W3v3 will do the job and surprise you with its power and accuracy.
• It uses the same technologies as its larger diameter brethren and delivers a whopping 0.375 in. (10 mm) of controlled, easy linear deflection.
  
• The 8W3v3-4 is best used with amplifier power in the 75W - 250W range and is optimized for operation in a tiny sealed enclosure of 8.5L (0.30 cu. ft.) or a bass reflex enclosure with 9.9L (0.35 cu. ft.) port.

General specifications

• Continuous load capacity (RMS) : 250 W
  
• Recommended amplifier power (RMS) : 75- 250 W
  
• Nominal impedance (Znom) : 4 Ω

Dimensions

• Nominal diameter : 8.0 inch / 200 mm
  
• Overall diameter (A): 217 mm / 8.54 inches
  
• Diameter of the mounting hole (B) : 180 mm / 7.09 inch
  
• Bolt circle diameter (C) : 199 mm / 7.85 inch
  
• Motor outer diameter (D): 121 mm / 4.75 inches
  
• Installation depth (E) : 118 mm (4.63 inches)
  
• Volume displacement : 0.03 cu ft / 0.85 L
  
• Net weight: 3.7 kg / 8.2 lb

Parameters

• Free air resonance (Fs) : 35.14 Hz
• Electrical "Q" (Qes) : 0.501
• Mechanical "Q" (Qms) : 7.071
• Total quality "Q" (Qts) : 0.467
• Equivalent volume (Vas) : 0.54 cu ft / 15.29 L
• Simple linear deflection (Xmax) : 0.375 inch/10.0 mm
• Reference efficiency : 0.13%
• Efficiency (1 W / 1 m) : 83.24 dB SPL
• Effective diaphragm area (Sd) : 0.021 square meters
• DC resistance (Re) : 3.77 Ω

Housing recommendation for a closed housing

• Wall thickness: 19 mm / 0.75 inch
  
• Thickness of the front baffle: 19 mm / 0.75 inch
  
• Volume (net int.) : 0.30 cu ft / 8.5 L
  
• Outer width (W) : 254 mm (10 inch)
  
• Outer height (H): 254 mm (10 inches)
  
• Outer depth (D) : 241 mm (9.5 inches)
  
• F3 : 54 Hz
  
• Fc : 58.8 Hz
  
• Qtc : 0,783

Enclosure recommendations for a bass reflex enclosure

• Wall thickness: 19 mm / 0.75 inch
• Thickness of the front baffle: 19 mm / 0.75 inch
• Volume (net int.) : 0.35 cu ft / 9.9 L
• Outer width (W) : 330 mm (13 inch)
• Outer height (H): 254 mm (10 inches)
• Outer depth (D) : 9.25 inch / 203 mm
• Internal port diameter (ID) : 2 inch / 51 mm
• Connection length (L) : 457 mm (round connection requires a 90º elbow to fit into the specified housing)
• Tuning frequency : (Fb)35 Hz
• F3 : 41.0 Hz