SKU: 3512-04
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12" 250-Watt RMS 4Ω Car Audio Subwoofer

MTX 35 Series Car Audio SubwooferHard And Loud

Implementing many of the same features found on our 75 & 95 Series SuperWoofers, the 35 Series can rock hard and loud for extended periods of time, while maintaining accurate and clean bass throughout the party. You will be impressed.

The 3512-04 is a 12" single voice coil, 4 ohm, 250 watt Car Audio Subwoofer designed to deliver outstanding SPL and sound quality in an affordable combination of state-of-the-art MTX sub features...and it rocks.

Quick Glance Icons
  • Inverted Apex Surround
  • Spider Plateau Venting

    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

    Economically priced subwoofers that deliver very impressive bass. Install one in a ported, or sealed, enclosure with a mono amplifier, be ready for "Kicka**" Sound that you wouldnt expect from a subwoofer.

    "Get ready For UNBELIEVABLE, Breath Taking Bass"

    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

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

    Recommended Amp Power (RMS) 125 - 250
    Frequency Response 28Hz - 130Hz
    Sensitivity 86dB
    Voice Coil 1.75" (4.45 cm)
    Magnet Weight 56 oz
    Mounting Depth 5.313"
    Cut Out Diameter 11.125"
    Volume Displacement (cu in) 28.53 cu in
    Sealed Enclosure Net Volume 1.0 cu ft
    Vented Enclosure Net Volume 2.32 cu ft
    Data Sheet 3512-04 Tech Data Sheet (2 pages) View | Download
    Test Tone 50Hzmp3 Download