JL Audio 10TW1 -4

Der10TW1 -4 is a powerful and innovative 10" (25cm) subwoofer. It is an exceptional product based on the patented Thin-Line subwoofer technology. This technology enables high excursions with a remarkably low mounting depth and allows operation in incredibly small enclosures. With impressive features such as the free-standing cone, a motor design with DMA optimization and a mounting depth of only 111mm, this subwoofer has the potential to far exceed the expectations of even the most demanding listeners. Designed and precision-engineered in the USA, the 10TW1 -4 clearly for the quality and reliability that characterize JL Audio.

• The 10TW1 , based on JL Audio's patented Thin Line subwoofer technology, offers a powerful combination of shallow depth and high excursion while operating in insanely small enclosures (0.35 cu.ft. / 10 liters).
• In combination with a frame made of a special cast alloy, the 10TW1 able to work in extremely tight spaces. 
• JL Audio's patented Thin-Line woofer technology compresses the architecture of the 10TW1 by a "Concentric Tube" structure built into the injection-molded cone body. This structure supports the voice coil and a fully annular spider while allowing a large motor structure to be placed further forward in the speaker than in conventional designs.
• The 10TW1 also features a sophisticated frame design that minimizes the frontal distance required for the driver to travel. This is achieved by deepening the suspension mounting surface so that most of the forward travel occurs within the frame dimensions. Thanks to this feature, the 10TW1 Even with the grille installed, there is only 22 mm (0.87 inches) of frontal clearance. This allows for more efficient use of space and a larger enclosure volume within a given overall depth.
• Although the 10TW1 Optimized for an enclosure much smaller than any other JL Audio 10-inch subwoofer system, it never sounds like a big woofer struggling in a tiny enclosure... instead, it delivers all the rich, deep, controlled bass you've come to expect from a JL Audio subwoofer system.
• Very low installation depth (111 mm / 4.36 inches)
• Extremely small requirements for the volume of the sealed housing
• Long linear displacement (0.40 in / 10 mm, one-way linear displacement)
• DMA-optimized engine design
• Cast alloy frame with flat edges for close grouping of multiple chassis
• Cone made of injection-molded, mica-filled polypropylene
• rubber surround
• Steel mesh grille included with each driver
• Precision engineered in the USA at the JL Audio factory in Miramar, Florida, using global components

• Continuous power handling (RMS): 300 W
  
• Recommended amplifier power (RMS): 75 - 300 W
  
• Nominal impedance (Znom): 4 Ω

• Nominal diameter: 250 mm / 10.0 inches
  
• Overall diameter (A): 264 mm / 10.375 inches
  
• Installation diameter (B): 230 mm / 9.0625 inches
  
• Bolt circle diameter (C): 246 mm (9.7 inches)
  
• Motor outer diameter (D): 115 mm / 4.54 inches
  
• Installation depth (E) : 111 mm (4.36 inches)
  
• Front grille projection (F) : 22 mm / 0.87 inches
  
• Volume displacement: 0.047 cu ft / 1.33 L
  
• Net weight: 10.5 lb / 4.8 kg

• Free Air Resonance Frequency (Fs): 38.09 Hz
  
• Electrical "Q" (Qes) : 0.639
  
• Mechanical "Q" (Qms) : 10.07
  
• Total quality "Q" (Qts) : 0.601
  
• Equivalent Volume (Vas): 0.429 cu ft / 12.15 L
  
• One-way linear displacement (Xmax): 0.40 inches/10.0 mm
• Efficiency (1 W / 1 m): 82.2 dB SPL
  
• Membrane area (Sd) : 0.0268 square meters

• Wall thickness: 19 mm / 0.75 inches
  
• Front baffle thickness: 19 mm / 0.75 inches
  
• Volume (Net Int.): 0.35 cu ft / 9.91 L
  
• Outer width (W) : 410 mm / 16.125 inches
  
• External height (H) : 356 mm (14 inches)
  
• External depth (D): 133 mm / 5.25 inches
  
• F3 : 47.24 Hz
  
• Fc : 56.83 Hz
  
• Qtc: 0.897

• Wall thickness: 19 mm / 0.75 inches
  
• Front baffle thickness: 19 mm / 0.75 inches
  
• Volume (Net Int.): 0.625 cu ft / 17.7 L
  
• Outer width (W) : 26.625 in / 676 mm
  
• External height (H) : 406 mm (16 inches)
  
• External depth (D): 133 mm / 5.25 inches
  
• Internal slot connection width (SW): 95 mm / 3.75 inches
  
• Internal slot clearance height (SH): 1.875 inches / 48 mm
  
• Internal slot connection length (SL) : 572 mm (22.50 in / 572 mm)
  
• Port extension length (EL): 529 mm (20.8125 inches)
  
• Tuning frequency (Fb): 35.0 Hz
  
• F3 : 30.77 Hz