JL Audio


JL Audio 10TW1-2 10 Inch Sub TW1 Series Shallow Mount Subwoofer 2 ohm 300w RMS

JL Audio 10TW1-2 10 Inch Sub TW1 Series Shallow Mount Subwoofer 2 ohm 300w RMS


10-inch (250 mm) Subwoofer Driver, 2 Ω


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Product Information

TW1 10-inch Subwoofer (300 W, 2 Ω)

Built on JL Audio's patented thin-line subwoofer technology, the 10TW1 delivers a powerful combination of shallow mounting depth and excursion capability, while operating in insanely small enclosures (0.35 cu.ft. / 10 liters). This, combined with a special cast alloy frame design, makes the 10TW1 capable of operating in extremely tight spaces. These include under-seat installations in trucks, 2-seat sports cars and many other creative applications requiring a compact, low profile subwoofer design.

JL Audio's patented thin-line woofer technology compresses the architecture of the 10TW1 using a "concentric tube" structure built into the injection-molded cone body. This structure supports the voice coil and a full annular spider, while permitting the placement of a large motor structure further forward in the speaker than with conventional designs.

The 10TW1 also features a clever frame design that minimizes the frontal clearance required for the excursion of the driver. This is accomplished by recessing the suspension attachment surface, so that most of the forward excursion occurs within the frame's dimensions. Thanks to this feature, the 10TW1 requires only 0.87 inches (22 mm) of frontal clearance, even with its grille installed. This allows for more efficient use of space and increased enclosure volume within a given overall depth.

Even though the 10TW1 is optimized for an enclosure much smaller than any other JL Audio ten-inch Subwoofer, it never sounds like a big woofer struggling in a tiny box...instead, it delivers all the rich, deep, controlled bass you have come to expect from a JL Audio subwoofer system.

  • Very shallow mounting depth (4.36 in / 111 mm)
  • No pole vent: permits mounting close to rear wall of enclosure
  • Extremely small sealed enclosure volume requirements
  • Long linear excursion capability (0.40 in / 10 mm, one-way)
  • DMA-optimized motor design
  • Patented "concentric tube" architecture
  • Patented "floating cone attach method" technology
  • Cast alloy frame with flat edges for tight driver grouping
  • Injection molded, mica-filled polypropylene cone
  • Rubber surround
  • Steel mesh grille included with each driver
  • Precision-built in USA at JL Audio’s Miramar, Florida factory with global components


  • Continuous Power Handling (RMS)    300 W
  • Recommended Amplifier Power (RMS)    75 - 300 W
  • Nominal Impedance (Znom)    2 Ω
  • Nominal Diameter    10.0 in / 250 mm
  • Overall Diameter (A)    10.375 in / 264 mm
  • Mounting Hole Diameter (B)    9.0625 in / 230 mm
  • Bolt Hole Circle Diameter (C)    9.7 in / 246 mm
  • Motor Outer Diameter (D)    4.54 in / 115 mm
  • Mounting Depth (E)    4.36 in / 111 mm
  • Front Grille Protrusion (F)    0.87 in / 22 mm
  • Driver Displacement    0.047 cu ft / 1.33 L
  • Net Weight    10.5 lb / 4.8 kg
  • Free Air Resonance (Fs)    38.09 Hz
  • Electrical “Q” (Qes)    0.639
  • Mechanical “Q” (Qms)    10.07
  • Total Speaker “Q” (Qts)    0.601
  • Equivalent Compliance (Vas)    0.429 cu ft / 12.15 L
  • One-Way Linear Excursion (Xmax)*    0.40 in / 10.0 mm
  • Reference Efficiency (no)    
  • Efficiency (1 W / 1 m)**    82.2 dB SPL
  • Effective Piston Area (Sd)    41.602 sq in / 0.0268 sq m
  • DC Resistance (Re)    2.428 Ω

* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.

** Efficiency (1 W / 1 m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder”.

What's Included

  • 10TW1-2
  • Warranty information
  • JL Audio stickers

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