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Polk/MOMO MM2124

12" 4-ohm subwoofer

Item # 107MM2124

Polk and accessories specialist MOMO have joined together to create the high-performance Polk/MOMO subs.

Polk and accessories specialist MOMO have joined together to create the high-performance Polk/MOMO subs.

Discontinued item

Item # 107MM2124

About the Polk/MOMO MM2124

Polk and accessories specialist MOMO have joined together to create the high-performance Polk/MOMO subs. These stylish subs deliver powerful, accurate bass that sets you apart from the pack — both sonically and visually.

Polk and accessories specialist MOMO have joined together to create the high-performance Polk/MOMO subs. These stylish subs deliver powerful, accurate bass that sets you apart from the pack — both sonically and visually.

The Polk/MOMO MM2124 12" subwoofer features a polypropylene concave "dish" cone, metalized for maximum rigidity. A huge, high-roll butyl rubber surround controls longer cone excursion for high-impact bass with lower distortion. State-of-the-art laser technology centers the voice coil perfectly in the motor structure's magnetic field for optimized performance.

These high-impact subs feature a triple venting system for maximum air flow, power handling, and reliability. Gaskets on the front and the back of the basket insure an airtight installation. This subwoofer is designed for use in a small, sealed enclosure.

Don't limit yourself to only using these subs in your car — they've passed tough environmental testing that certifies them for marine use as well.

Priced per speaker

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Product highlights:

  • 12" 4-ohm subwoofer
  • metalized polypropylene concave cone with high-roll butyl rubber surround
  • non-resonant, heavy-gauge stamped steel basket
  • professional grade, nickel-plated, locking push terminals
  • power handling: 75-400 watts RMS
  • peak power handling: 800 watts
  • frequency response: 23-200 Hz
  • sensitivity: 88 dB
  • top-mount depth: 6-5/8"
  • sealed box volume: 0.88 cu. ft.
  • suitable for marine use
  • Recommended Q-Logic Box Type: 1
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # AA2124-B

What's in the box:

  • One 12" subwoofer
  • 1 Rubber gasket (installed)
  • 8 Allen head self-tapping screws
  • Owner's Manual
  • Online registration sheet

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Features
Enclosure Compatibility
Box Correction
Cutout Diameter Correction

Features

Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.

Marine Certified: Polk/MOMO Series speakers are built to withstand exposure to moisture and UV rays, so they work well in boats and cars.

Metalized Polypropylene Woofer Cone: This woofer features an ultra-stiff metalized polypropylene Dynamic Balance cone for massive bass. Its Dish Cone design is mechanically supported by a unique Vented Cone Coupler. This support increases the sub's axial rigidity. 

Rubber Surround: The cone uses a durable, airtight rubber surround for a long life of extended linear motion.

Stamped Steel Basket: The acoustically inert stamped steel basket offers lower distortion.

NOMEX Spider: The huge, fire-retardant flat NOMEX spider allows extended linear motion while providing highly reliable mechanical and thermal stability.

Klippel Measurement Technology: State-of-the-art laser-based Klippel measurement technology perfectly centers the subwoofer's voice coil in the magnetic field, improving X-max and BL linearity, and the sub's micro and macro dynamics, for deep, precise bass.

Triple Vented: The vented coil/cone coupler, vented spider platform, and vented pole piece all allow cooling air to freely flow over the heat-generating components and better harness all the watts your amp can dish out.

Rubber Magnet Boot: The removable rubber magnet boot provides additional damping and deeper installation flexibility. With the magnet boot removed, the woofer has the following dimensions:

  • Magnet Diameter: 5.508"
  • Depth as top: 6.252"
  • Depth as bottom: 6.803"
Terminals: The woofer has professional grade nickel-plated push terminals that will accept bare wire and pin connectors.

Enclosure Compatibility

Recommended Sealed Box Volume: Polk recommends using this woofer in a sealed enclosure with an internal volume of 0.88 cu/ft.

Box Correction

Power Handling: The box incorrectly states that the woofer can handle up to 125 watts RMS and 300 watts peak. In fact, the woofer can handle up to 400 watts RMS and 800 watts peak.

Cutout Diameter Correction

Cutout Diameter Correction: Page 7 of the manuals included with the initial production runs of this woofer lists incorrect cutout diameter specifications; mounting holes cut using the specifications on page 7 will be too large for the woofers. The correct cutout specifications are listed on page 10 of the manual; on page 10, the cutout diameter is called "Mounting diameter".

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