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Deal.ai › JL Audio › Boat & Car Speakers
JL Audio
JL Audio 12TW3-D4

JL Audio 12TW3-D4

Best price now

$569.99at Abt ElectronicsChecked 10 h ago

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Price facts

  • Lowest price today: $569.99 at Abt Electronics (checked Nov 10, 2026).
  • Our take on the JL Audio 12TW3-D4

    The 12TW3-D4 is a 12-inch shallow-mount subwoofer from JL Audio's TW3 line, built for tight spaces where a standard sub won't fit. Its 3.5-inch mounting depth and low 0.029 cu ft displacement let it go under seats, in slim enclosures or in factory locations. Dual 4-ohm voice coils give flexible wiring to a 2-ohm or 8-ohm load, and it handles 400 watts RMS. It suits space-limited builds that still want real low bass; the trade-off is low 84 dB sensitivity, so it needs a capable amp, and it costs more than mainstream shallow subs.

    Best forTruck and SUV owners with shallow under-seat spaceSlim custom enclosures and factory-location upgradesBoat and powersports builds with limited depthListeners who want deep bass from a compact box
    Pros
    • Very shallow 3.5-inch mounting depth for a 12-inch driver
    • Dual 4-ohm coils allow 2-ohm or 8-ohm wiring
    • Handles 400 watts RMS with 22 Hz low-end extension
    • Low displacement leaves more usable box volume
    • JL Audio build quality and cast-frame design
    Cons
    • Low 84 dB sensitivity needs a strong amplifier
    • Premium price against mainstream shallow subs
    • Needs a well-built sealed or ported enclosure to perform
    • Deep bass output is modest next to full-depth 12s

    JL Audio 12TW3-D4 prices at every store

    • Abt ElectronicsNew

      In stock

      $569.99Free shippingChecked 10 h ago
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    Store links may earn us a commission. Price via Klarna.

    JL Audio 12TW3-D4 price history

    Lowest price we've seen: $569.99 on Nov 10 at Abt Electronics. Tracked across 1 store since Nov 10.

    What reviewers say

    Owners rate the 12TW3-D4 highly for fitting real bass into shallow spaces, especially in trucks and boats. Most praise its clean sound and build; the main complaints are that it needs plenty of power and rewards a properly built box.

    What people mention
    • Mounting depthPraisedOwners say the shallow frame fits under seats and in tight factory locations where other 12s won't.
    • Power needsMixedReviewers note the low sensitivity means it wants a strong amp to sound its best.
    • Bass outputMixedMost find the bass clean and deep for its size, though some say it trails full-depth 12s in sheer output.
    • Build qualityPraisedBuyers describe the driver as solidly built with sturdy terminals and a rigid frame.
    • Enclosure sensitivityCriticisedOwners report it only performs well in a properly built sealed or ported box.

    Specifications

    power handling
    400 watts RMS (800 watts peak)
    top-mount depth
    3-1/2"
    Continuous Power Handling
    400 WSource
    Recommended Amplifier Power
    200 - 400 WSource
    Nominal Impedance
    Dual 4 ΩSource

    Questions and answers

    What amplifier power does the 12TW3-D4 need?
    JL Audio recommends 200 to 400 watts RMS. Given its low 84 dB sensitivity, aim toward the top of that range for strong output.
    Can it be wired to 2 ohms?
    Yes. The dual 4-ohm voice coils wire in parallel for a 2-ohm load or in series for 8 ohms. Match the wiring to your amplifier's stable impedance.
    What size enclosure does it need?
    It works in small sealed or ported boxes, and its low displacement leaves more usable volume. Follow JL Audio's recommended box specs for best results.
    Is it good for a truck or boat?
    Yes. The 3.5-inch mounting depth suits under-seat truck boxes and boat compartments. Use marine-rated enclosure materials in wet environments.
    How does it compare with a full-depth 12-inch sub?
    It gives up some maximum output and low-end extension but fits in far tighter spaces. Choose it when depth is the limit, not when maximum SPL is the goal.
    Where is the JL Audio 12TW3-D4 cheapest?
    At Abt Electronics, for $569.99, as of our latest check.

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    Nominal Diameter
    12 in / 300 mmSource
    Mounting Depth
    3.5 in / 89 mmSource
    Mounting Hole Diameter
    11.625 in / 295 mmSource
    Bolt Hole Circle Diameter
    12.5 in / 318 mmSource
    Motor Outer Diameter
    6.125 in / 156 mmSource
    Driver Displacement
    0.029 cu ft / 0.82 LSource
    Net Weight
    14.9 lb / 6.8 kgSource
    Frequency Response
    22-200 HzSource
    Sensitivity
    84.11 dBSource