12TW3-D8

Discover the 12TW3-D8, a 12" (30cm) Subwoofer with an impressive sound profile, made by the renowned manufacturer JL Audio. This Subwoofer stands out for its high performance and low installation depth, based on the technological advancements of JL Audio's TW5 Thin-Line subwoofers. The 12TW3-D8 is known for its remarkable performance, achieved through JL Audio's patented Thin-Line subwoofer technology. The Subwoofer is characterized by its long linear excursions, high durability, and high power of 400W. As a bonus, this Subwoofer is particularly optimized for small installation spaces. Experience the difference that JL Audio can make with the 12TW3-D8 in your audio setup.

Features

• Building on the core technology of JL's TW5 Thin-Line subwoofers, the TW3 offers a powerful combination of low installation depth and high excursion. They are even capable of achieving greater excursions than the W3v3 subwoofers.
• To enable this remarkable performance, JL Audio's patented Thin-Line subwoofer technology compresses the architecture of the TW3 through a "concentric tube" structure built into the injection-molded cone body. This structure supports the voice coil and a full-ring spider while allowing the large motor structure to be placed further forward in the speaker than in conventional designs.
• The TW3 is optimized for small enclosures and features JL's bracket mounting design to maximize the cone area within its mounting space. 
• Very low installation depth (3.50 inches)
• Very small requirements for the volume of the sealed enclosure
• Very long linear excursion (0.60 In / 15.2 mm, one-way linear excursion)
• DMA-optimized motor designs
• Frame made of cast alloy
• Diaphragm made of injection-molded, mica-filled polypropylene
• Rubber surround
• Dust cap and rear cover made of aluminum alloy with JL Audio logo
• Precision manufactured in the USA at the JL Audio factory in Miramar, Florida, with global components

General specifications

• Continuous power handling (RMS) : 400 W
  
• Recommended amplifier power (RMS) : 200 - 400 W
  
• Nominal impedance (Znom) : Dual 8 Ω

Dimensions

• Nominal diameter : 12 inches / 300 mm
  
• Overall diameter (A) : A1: 335 mm / 13.2 inches
  
• Minimum A2: 318 mm / 12.5 inches
  
• Mounting diameter (B) : 295 mm / 11.625 inches
  
• Bolt circle diameter (C) : 318 mm / 12.5 inches
  
• Motor outer diameter (D): 156 mm / 6.125 inches
  
• Mounting depth (E) : 89 mm (3.5 inches)
  
• Volume displacement : 0.029 cu ft / 0.82 L
  
• Net weight : 14.9 lb / 6.8 kg

Parameters

• Free Air resonance frequency (Fs) : 32.660 Hz
  
• Electrical "Q" (Qes) : 0.558
  
• Mechanical "Q" (Qms) : 10.071
  
• Total quality "Q" (Qts) : 0.668
  
• Equivalent volume (Vas) : 1.205 cu ft / 34.12 L
  
• One-Way linear excursion (Xmax) : 0.6 inches / 15.2 mm
• Efficiency (1 W / 1 m) : 84.23 dB SPL
  
• Diaphragm area (Sd) : 0.0539 square meters
  
• DC resistance (Re) : 14.800 Ω

Closed enclosure specifications

• Wall thickness: 19 mm / 0.75 inches
  
• Thickness of the front baffle: 19 mm / 0.75 inches
  
• Volume (Net Internal) : 1.00 cu ft / 28.3 L
  
• External width (W) : 635 mm / 25 inches
  
• External height (H) : 422 mm / 16.625 inches
  
• External depth (D) : 6.5 inches / 165 mm
  
• F3 : 38.27 Hz
  
• Fc : 48.50 Hz
  
• Qtc : 0.9919

Specifications for bass reflex enclosure

• Wall thickness: 19 mm / 0.75 inches
  
• Thickness of the front baffle: 19 mm / 0.75 inches
  
• Volume (Net Internal) : 1.3 cu ft / 36.8 L
  
• External width (W): 864 mm / 34 inches
  
• External height (H): 432 mm (17 inches)
  
• External depth (D): 171 mm / 6.75 inches
  
• Internal slot connection width (SW): 133 mm / 5.25 inches
  
• Internal slot opening height (SH): 60 mm / 2.375 inches
  
• Internal slot connection length (SL): 610 mm (24 inches)
  
• Length of port extension (EL) : 560 mm (22.0625 in / 560 mm)
  
• Tuning frequency (Fb) : 29.79 Hz
  
• F3 : 32 Hz