SKU: 3512-04S
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12" 300-Watt RMS 4Ω Car Audio Shallow Subwoofer

Extra Space Bass

The 35 Series shallow subwoofers utilize technologies found in other MTX subwoofers to deliver exceptional bass in a variety of applications. Its shallow mount design make it perfect for tight spaces where you still need bass.

The 3512-04S is a 12" single voice coil, 4Ω, 300-watt shallow mount Car Audio Subwoofer designed to deliver outstanding SPL and sound quality in an affordable combination of state-of-the-art MTX technologies.

  • Inverted Apex Surround
  • Spider Plateau Venting
    Availability: In stock
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    Inverted Apex Surround

    Creates higher volume displacement, higher SPL and higher displacement.

    Progressive Suspension

    Controls excursion at high power lowering 3rd order distortion.

    MTX Reliability

    Forty years of audio experience packed into this subwoofer family.


    More Than You Expect

    The 3512-04S is the ideal subwoofer for audio enthusiasts that don't want to sacrifice space in their vehicle, but still want their sound to bump. Designed for sealed enclosures, this subwoofer is perfectly deployed in pick up trucks, sports cars, or any daily driver that has a trunk full of life's stuff. A great value, this subwoofer continues the MTX tradition of getting More Than Xpected.

    The MTX Inverted Apex Surround

    This subwoofer features a new Inverted Apex surround that increases surface area allowing for more air movement and higher SPL, and a progressive suspension that lowers distortion resulting in improvLow profileed sound quality. This subwoofer also incorporates Spider Plateau Venting which is a mechanical cooling process that targets cool air at the voice coil effectively managing the temperature for long term performance.

    Great For Upgrades

    35 Series subwoofers are ideal for improving the sound in any vehicle. Their low profile does not require a large enclosure so they are perfect for most vehicles.

    Subwoofer Wiring Calculator

    Learn how to properly wire your subwoofers with this easy subwoofer wiring diagram tool.

    Select # Of Woofers:

    Choose Impedance To Match Amp:

    • Inverted Apex Surround - Increases Surface Area Resulting in Increased Volume Displacement and SPL

    • Spider Plateau Venting - Targets Cool Air at Voice Coil for Improved Thermal Performance

    • Progressive Suspension - Controls Excursion at High Power Reducing Distortion Resulting in Better Sound Quality

    Recommended Amp Power (RMS) 150 - 300
    Frequency Response 23Hz - 130Hz
    Sensitivity 84.4db (1W/1m)
    Voice Coil 2" (5.08 cm)
    Magnet Weight 44 oz
    Mounting Depth 3.375" (8.57cm)
    Cut Out Diameter 11.125" (28.26cm)
    Volume Displacement (cu in) 35.74 cu in
    Sealed Enclosure Net Volume .8 cu ft
    Warranty Period 24 months from date of purchase

    Data Sheet 3512-04S Tech Data Sheet (2 pages) View | Download
    Test Tone 50Hzmp3 Download