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JL Audio 12TW1-4 - 12-inch Subwoofer Driver 300W, 4ohm12TW1-4
£319.99 Save £5.00  was:£324.99
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JL Audio 12TW1-4 - 12-inch Subwoofer Driver 300W, 4ohm

£319.99 Save £5.00 (2%)  was:£324.99
5 Stars 5
Quickfind Code - 33096
Quick Summary:

Built on JL Audio's patented thin-line subwoofer technology, the 12TW1 delivers a powerful combination of shallow mounting depth and excursion capability.

Condition: New

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rrp: £324.99
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Key Features

12inch Subwoofer Driver 300W, 4ohm - JL Audio 12TW1-4

Built on JL Audio's patented thin-line subwoofer technology, the 12TW1 delivers a powerful combination of shallow mounting depth and excursion capability, while operating in insanely small enclosures (0.65 cu.ft. / 18.4 liters). This, combined with a special cast alloy frame design, makes the 12TW1 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 12TW1 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 12TW1 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 12TW1 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 12TW1 is optimized for an enclosure much smaller than any other JL Audio twelve-inch subwoofer driver, 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.

Download JL Audio 12TW1-4 manual Click here to download manual

Download image of JL Audio 12TW1-4 Click here for Image of JL Audio 12TW1-4
Technical Specification
General Features:
  • Continuous Power Handling (RMS) - 300 W
  • Recommended Amplifier Power (RMS) - 75 - 300 W
  • Nominal Impedance (Znom) - 4 Ω
Physical Specifications:
  • Nominal Diameter - 12.0 in / 300 mm
  • Overall Diameter - 12.375 in / 314 mm
  • Mounting Hole Diameter - 11.0625 in / 281 mm
  • Bolt Hole Circle Diameter - 11.7 in / 297 mm
  • Motor Outer Diameter - 5.71 in / 145 mm
  • Mounting Depth - 4.62 in / 117 mm
  • Front Grille Protrusion - 0.87 in / 22 mm
  • Driver Displacement * 0.072 cu ft / 2.04 L
  • Net Weight - 16.5 lb / 7.5 kg
  • Free Air Resonance (Fs) - 32.35 Hz
  • Electrical “Q” (Qes) - 0.555
  • Mechanical “Q” (Qms) - 11.066
  • Total Speaker “Q” (Qts) - 0.529
  • Equivalent Compliance (Vas) - 1.189 cu ft / 33.67 L
  • One-Way Linear Excursion (Xmax)* - 0.40 in / 10.0 mm
  • Efficiency (1 W / 1 m)** - 85.15 dB SPL
  • Effective Piston Area (Sd) - 67.608 sq in / 0.0436 sq m
  • DC Resistance (Re) - 3.514 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”.
Sealed Enclosure Specifications:
  • Wall Thickness - 0.75 in / 19 mm
  • Front Baffle Thickness - 0.75 in / 19 mm
  • Volume (net int.) - 0.65 cu ft / 18.41 L
  • External Width (W) - 26.50 in / 673 mm
  • External Height (H) - 14 in / 356 mm
  • External Depth (D) - 5.50 in / 140 mm
  • F3 - 45.44 Hz
  • Fc - 54.41 Hz
  • Qtc - 0.89
Ported Enclosure Specifications:
  • Wall Thickness - 0.75 in / 19 mm
  • Front Baffle Thickness - 0.75 in / 19 mm
  • Volume (net int.) - 1.125 cu ft / 31.86 L
  • External Width (W) - 31.75 in / 806 mm
  • External Height (H) - 16 in / 406 mm
  • External Depth (D) - 7 in / 178 mm
  • Internal Slot Port Width (SW) - 5.50 in / 140 mm
  • Internal Slot Port Height (SH) - 2.25 in / 57 mm
  • Internal Slot Port Length (SL) - 22.625 in / 575 mm
  • Port Extension Length (EL) - 20.75 in / 527 mm
  • Tuning Frequency (Fb) - 34.0 Hz
  • F3 - 31.79 Hz
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Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

120 - 122 Alfreton Road, Nottingham, Nottinghamshire, NG7 3NR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181

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