JL Audio 8W3 V3-4

The 8W3 V3-4 is an 8-inch subwoofer from the popular audio manufacturer JL Audio. This subwoofer belongs to theW3 v3 series, which has established itself as a bestseller from JL Audio thanks to its unbeatable price-performance ratio. With a continuous power handling of 250W and 4 ohms, this subwoofer delivers excellent bass in an extremely compact form. Whether in a sealed housing or a bass reflex housing, the 8W3 V3-4 impresses with its power and accuracy. It is the perfect subwoofer for lovers of deep and precise bass. 

• W3 v3 8-inch subwoofer (250W, 4Ω)
  
• If you need an 8-inch subwoofer that can produce excellent bass in extremely small enclosures, the 8W3 v3 can take on this task and surprise you with its performance and accuracy.
• It uses the same technologies as its larger diameter brothers and delivers a whopping 0.375 in. (10 mm) of controlled, easy linear excursion.
  
• The 8W3 v3-4 is best used with amplifier power in the range of 75W - 250W and is optimized for operation in a tiny 8.5L (0.30 cu. ft.) sealed enclosure or a 9.9L (0.35 cu. ft.) ported bass reflex enclosure.

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

• Nominal diameter: 8.0 inches / 200 mm
  
• Total diameter (A): 217 mm / 8.54 inches
  
• Mounting hole diameter (B) : 180 mm / 7.09 inches
  
• Bolt circle diameter (C): 199 mm / 7.85 inches
  
• 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

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

• Wall thickness: 19 mm / 0.75 inches
  
• Front baffle thickness: 19 mm / 0.75 inches
  
• Volume (Net Int.): 0.30 cu ft / 8.5 L
  
• Outer width (W) : 254 mm (10 inches)
  
• External height (H): 254 mm (10 inches)
  
• External depth (D) : 241 mm (9.5 inches)
  
• F3 : 54 Hz
  
• Fc : 58.8 Hz
  
• Qtc: 0.783

• Wall thickness: 19 mm / 0.75 inches
• Front baffle thickness: 19 mm / 0.75 inches
• Volume (Net Int.) : 0.35 cu ft / 9.9 L
• Outer width (W) : 330 mm (13 inches)
• External height (H): 254 mm (10 inches)
• External depth (D) : 9.25 inches / 203 mm
• Internal port diameter (ID): 2 inches / 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