SKU: 5512-22
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12" 400-Watt RMS Dual 2Ω Car Audio Subwoofer

4.8 (14 reviews)
Availability: In stock
$209.95 MSRP
$189.95

High SPL Subwoofers

55 Series Subwoofers are high SPL subwoofers that deliver the most bass for your buck.

Implementing many of the same features found on our 75 & 95 Series SuperWoofers, the 55 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 5512-22 is a 12" dual voice coil, 400 watt, 2 ohm subwoofer built on the MTX tradition of getting more than expected. The 55 Series subs are often used in applications where bass levels are the most important factor. These subwoofers are designed to move air and go boom! They are true monsters of bass and are a great choice for anyone that really wants to be heard.

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5512-22 Subwoofer

The 55 Series Legacy

The 55 Series, MTX's best selling subwoofer family, is a perfect mix of performance and value for enthusiasts that want to add extreme bass to their system without breaking the bank. We have squeezed an oversized cone into the standard 10", 12" and 15" frames, so the sub moves more air and gives you more bass. The woofer's movement cools the sub as it plays, so it doesn't overheat when you're rocking out. The special suspension exerts extra control when you're pushing the sub hard. Some would say that we've once again out done ourselves, but it only gets better and better.

If you want to have the best sounding, loud and pounding bass around and not break the bank, then the 55 Series is your subwoofer. Whether you have space for 10, 12 or 15 inch, we have the Bass For you!

5512-22 Subwoofer

The MTX Inverted Apex Surround

This subwoofer features the MTX Inverted Apex Surround. This is a departure from a traditional half roll surround. The Inverted Apex is narrower thereby increasing the surface diameter of the subwoofer cone enabling it to displace more air and generate higher SPL. The 55's are designed with a progressive suspension that lowers distortion resulting in improved sound quality even at high volume.

5512-22 Subwoofer

55 Series Spider Plateau Venting

This subwoofer also incorporates Spider Plateau Venting which is a mechanical cooling process that targets cool air at the voice coil and a radial ribbed t-yoke that acts as a heat sink effectively managing the subwoofer temperature for long term rocking performance.

Subwoofer Wiring Calculator

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

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Dimensions & Details

Dimensions

  • A - Total Diameter:      12 ⅜" (314.30mm)
  • B - Driver Diameter:    10 ⁹⁄₁₆" (268.30mm)
  • C - Total Depth:            6 ⁹⁄₁₆" (166.70mm)
  • D - Mounting Depth:   6 ¼" (158.80mm)
  • E - Cut Out Diameter:  11 ³⁄₁₆" (284.20mm)

What's in the Box

  • Subwoofer
  • Technical Data Sheet

Features

• 12-inch Dual 2Ω Subwoofer
• 400 Watts RMS Power Handling
• Stamped Steel Basket
• Inverted Apex Surround
• Spider Plateau Venting
• Integrated T-Yoke Heat Sink
• 2.0" Copper Voice Coil

SPECIFICATIONS

  • Recommended Amp Power (RMS): 200 - 400
  • Impedance: Dual 2Ω
  • Frequency Response: 25Hz - 130Hz
  • Sensitivity: 85.1 dB
  • Voice Coil: 2" (5.08 cm)
  • Magnet Weight: 56 oz
  • Mounting Depth: 6 ¼" (158.80mm)
  • Cut Out Diameter: 11 ³⁄₁₆" (284.20mm)
  • Volume Displacement: 52.46 cu in
  • Sealed Enclosure Net Internal Volume: 1.25 cu ft
  • Vented Enclosure Net Internal Volume: 1.8 cu ft

Downloads

Reviews

  • Kyle reviewed on 9/10/2025 5:00 PM
    Reviewed on Amazon
    Sku: 5512-22
    I expected a lot more out of these they sound very clean properly made. But don’t shake my brain like I expected maybe because I put them in a full size truck I’m use to suvs .
    0
  • Nathan reviewed on 8/31/2025 5:00 PM
    Reviewed on Amazon
    Sku: 5512-22
    Hits like an oldschool 8000 series would. I like
    0
  • Timothy Dunstone reviewed on 5/14/2025 5:00 PM
    Reviewed on Amazon
    Sku: 5512-22
    Great subwoofer
    Excellent subwoofer replacement.
    0
  • Michael reviewed on 1/20/2023 5:00 PM
    Reviewed on Crutchfield
    Sku: 5512-22
    Classic MTX
    I'm impressed. This sub plays down to 25hz with no problem. Hits hard and low. Much better than their lesser speakers. Sounds great as a home theater subwoofer.
    0
  • Bryan reviewed on 9/28/2021 5:00 PM
    Reviewed on Crutchfield
    Sku: 5512-22
    MTX 5512 - Great subwoofer with emphasis on Sound Quality
    The MTX 55 Series subwoofers are warm and very musical. The inverted apex surround really seems to do what it was designed to do, and that's allow the cone to move but with greater control. MTX has really done a good job of maximizing surface area thereby improving the woofer's ability to move air and the results can be heard and felt. I'll be picking up a second MTX 5512-22 to complete a 2x12 sealed enclosure. I've used this subwoofer in both ported and sealed configurations and it performs equally well in either. Overall the subwoofer is very precise, and musical, a great fit if this matches your wattage needs and you prioritize sound quality over Sound Pressure Level. This one is for the music lovers, and all music sounds better with these subs. That being said, these will still shake your car (just in case you were wondering).
    0
  • Crutchfield customer reviewed on 8/24/2020 5:00 PM
    Reviewed on Crutchfield
    Sku: 5512-22
    Great Subwoofer
    Excellent Subwoofer. Great quality. Easy to wire. Hits hard.
    0

Returns & Warranty

30-Day Money-Back Guarantee

At MTX Audio, we are serious about sound®. Therefore, if you are not "blown away" with your purchase, for any reason, you can return any items purchased directly from MTX.com that are complete and like new within 30 days. Products purchased from authorized MTX retailers must be returned through that same retailer. Products purchased through non-authorized MTX retailers may not be returned.

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Warranty Information

MTX products purchased in the USA from an authorized MTX dealer are guaranteed against defects in material and workmanship for the period of time specified below, the warranty period begins the day the product is purchased by the end user. This warranty is limited to the original retail purchaser of product and extends only to products purchased from authorized MTX resellers. Product found to be defective during that period will be repaired or replaced by MTX at no charge.

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