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Black 12 inch car subwoofer with polypropylene cone and inverted apex surround

MTX

MTX 3512-04 12" 250W RMS 4 Ohm car subwoofer

SKU CH-TCF1-SJD8Q MPN 3512-04

A 12-inch 4-Ohm car subwoofer rated at 250W RMS with 86dB sensitivity and 28Hz to 130Hz response

  • Cone material12 in Polypropylene Woofer
  • Peak wattage500 W
  • RMS power rating(Watts): 250 Recommended Amp Power (RMS): 125–250
  • Frequency range28 Hz - 130 Hz
  • Audio sensitivity86 dB
  • Rated impedance4 Ohm
  • Delivers deep bass down to 28 Hz with 250 W RMS power handling
  • Expanded cone area moves more air for higher sound pressure levels
  • Progressive suspension controls excursion at high power reducing distortion
  • 4 Ohm impedance matches amplifiers rated 125 to 250 W RMS
  • 86 dB sensitivity produces strong output with moderate amplifier power

12-Inch 250W RMS Subwoofer

The MTX 3512-04 is a 12-inch single voice coil subwoofer rated at 250 watts RMS with a 4 Ohm impedance. It belongs to the 35 Series and uses a polypropylene cone with an Inverted Apex surround. The design targets high sound pressure levels and low distortion for car audio systems.

Ideal for Bass Upgrades in Standard Enclosures

This subwoofer suits owners wanting louder, cleaner bass without a large box. Its low-profile design fits most vehicles and works with amplifiers delivering 125 to 250 watts RMS. Buyers needing higher power handling or dual voice coil wiring options should consider other models.

4 Ohm Impedance Defines Amplifier Match

The fixed 4 Ohm load determines which amplifiers can drive the woofer safely and efficiently. An amp stable at 4 Ohms and rated between 125 and 250 watts RMS is required for proper performance.

How it compares

Measured against everything we stock in Car Subwoofers & Enclosures, at today’s prices. Recalculated every night.

Price $73.99
Cheaper than about 79% of the 268 comparable items (median $185.49).

Specifications

Product
Brand nameMTX
Product line35 Series
Product typeWoofer
Audio & video
RMS power rating(Watts): 250
Recommended Amp Power (RMS): 125–250
Frequency range28 Hz - 130 Hz
Audio sensitivity86 dB
Rated impedance4 Ohm
Power
Peak wattage500 W
Size & build
Cone material12 in Polypropylene Woofer
Shipping weight4.31 kg
Package size305 × 305 × 305 mm

Questions about this item

What size enclosure does the 12" MTX 3512-04 require?

The subwoofer is designed for a low-profile enclosure that does not need a large internal volume, making it suitable for most vehicle installations.

How do I wire the single 4 Ohm voice coil to my amplifier?

Connect the positive and negative terminals directly to a matching 4 Ohm stable amplifier channel rated between 125 and 250 watts RMS.

How does the Spider Plateau Venting keep the voice coil cool over time?

The venting directs cool air straight at the voice coil during cone movement, managing temperature for sustained performance during extended use.

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