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Polk Audio MMC5250

5-1/4" component speaker system
Certified for marine use

Item # 107MMC5250

Powerfully deep bass and crisp, soaring highs; if that's the dynamic combination you're looking for from a serious...

Find what Fits your car

Powerfully deep bass and crisp, soaring highs; if that's the dynamic combination you're looking for from a serious...

Discontinued item

Item # 107MMC5250

About the Polk Audio MMC5250

Powerfully deep bass and crisp, soaring highs; if that's the dynamic combination you're looking for from a serious component system then look no further. The Polk/MOMO MMC5250 meets your auditory expectations, while sporting a sleek formula-car racing look.

Powerfully deep bass and crisp, soaring highs; if that's the dynamic combination you're looking for from a serious component system then look no further. The Polk/MOMO MMC5250 meets your auditory expectations, while sporting a sleek formula-car racing look.

Revel in the distinct low mids and penetrating bass produced by the woven carbon fiber woofers, and bask in the detailed upper mids and highs delivered by liquid-cooled silk/polymer composite dome tweeters. The tweeter's neodymium magnet saves precious space without compromising sound quality — and you can swivel the tweeter up to 15° for exceptional imaging.

The woofer's cast aluminum basket eliminates disturbing resonance. Durable rubber surrounds keep your system rockin' for years to come. And you don't have to limit these speakers to your car — they've passed tough environmental testing that certifies them for marine use as well.

Priced per system

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Product highlights:

  • lacquered carbon-fiber woofer with rubber surround
  • 1" liquid-cooled silk/polymer composite dome tweeter (surface- and flush-mount cups included)
  • cast aluminum basket
  • certified for marine use
  • outboard 2-way crossover (2,750 Hz at 12 dB per octave) with biamp inputs and selectable tweeter output level
  • ABS grille based on MOMO rim design
  • frequency response: 53-25,000 Hz
  • power range: 10-100 watts RMS (200 watts peak power)
  • sensitivity: 89 dB
  • top-mount depth: 2-5/16" (2-9/16" with removable magnet boot)
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # AA5250-B

What's in the box:

  • 2 Woofers
  • 2 ABS magnet boots (one installed on each woofer)
  • 2 Grilles
  • 2 Tweeters (each tweeter has attached 11" speaker leads)
  • 2 Flush-mount cups (each cup has an attached metal flush-mount clamp)
  • 2 Surface-mount cups
  • 2 Crossovers
  • Four 38" lengths of speaker wire (each length of wire has female quick-slides on one end and tinned wire on the other end)
  • Eight 1" self-tapping screws
  • Six 3/4" self-tapping screws
  • 8 Speed clips
  • Owner's Manual
  • Online registration sheet

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More details on the Polk Audio MMC5250

Pat M.

Features & specs

General
Speaker Size
Design 2-way
Tweeter Design 1" Dome
Impedance (Ohms) 4
Tweeter Composition Silk/Polymer composite
Woofer Composition Lacquered carbon-fiber
Woofer Surround Rubber
Parts Warranty 3 Years
Labor Warranty 3 Years
Specifications
Sensitivity (1W at 1 meter) 89
Sensitivity at 2.83 volts N/A
Frequency Response 53 - 25k Hz
Minimum RMS Wattage 10
Maximum RMS Wattage 100
Peak Power Handling (Watts) 200
Top-mount Depth (Inches) 2 5/16
Bottom-mount Depth (Inches) 2 1/2
Cutout Diameter or Length (inches) 4 11/16
Mounting Height (Inches) 0.308

Product Research

Woofers
Tweeters
Crossovers
Specifications Note

Woofers

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

Lacquered Carbon-fiber Woofers: The lacquered carbon-fiber cones provide the ideal balance of stiffness and low mass for the clearest, most detailed midrange performance, and lowest distortion, of any speaker in its class.

Rubber Surrounds: The airtight rubber surrounds stand up to moisture, sunlight and extreme temperatures while allowing long excursion linear motion and years of reliable use.

Cast Aluminum Baskets: Each speaker has a channel-vented, acoustically inert cast aluminum basket for superior stiffness and better heat dissipation.

1" Kapton Voice Coils and Formers: Laser-based, Klippel-optimized, channel-vented 2-Layer 1" Kapton voice coils and formers offer high heat dissipation and extreme power handling.

NOMEX Spiders: The strong, fire-retardant flat NOMEX spiders allow extended linear motion while providing highly reliable mechanical and thermal stability.

ABS Magnet Boots: Each woofer features a waterproof, anti-resonant ABS magnet boot, which is removable for installation flexibility. With the magnet boots installed, each speaker has the following dimensions:

  • Magnet Diameter: 3.045"
  • Depth as top: 2.562"
  • Depth as bottom: 2.698"

Tweeters

Silk/Polymer Composite Tweeters: The 1" liquid-cooled, silk/polymer composite tweeters provide clear, detailed highs.

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

Mounting: The supplied mounting cups allow you to surface- or flush-mount the tweeters. In both mounting configurations, the tweeters can be pivoted to "aim" their output for the best high frequency response and soundstaging.

Tweeter Mounting Dimensions:

  Surface Mount Flush Mount
Mounting Height 1.156" 0.246"
Depth 0.645" (screw depth) 1.107"
Frame Diameter 2.059" 2.505"
Cutout Diameter   N/A 2.157"

Crossovers

2-way Crossovers: The included crossovers include a 12 dB/octave, 2750 Hz high-pass filter for the tweeters and a 12 dB/octave, 2750 Hz low-pass filter for the woofers.

Bi-amp Inputs: The crossovers allow each woofer and tweeter to be powered by separate channels of amplification. A switch on each crossover lets you choose Single input or Dual input mode. In Single input mode, one channel of amplification is used to power the woofer and tweeter together. In Dual input mode, separate channels of amplification are used to power the woofer and tweeter.

Selectable Tweeter Output Level: Each crossover has a 3-position switch that allows you to select the tweeter output level according to system requirements and personal preference. The switches may be set to "-6 dB", "-3 dB" or "0 dB".

Crossover Mounting: There are 2 mounting holes in the base of each crossover; screws to mount the crossovers are not supplied. The crossovers are not weather proof, so they should not be mounted in locations, such as door panels, that will expose them to direct contact with water.

Crossover Terminals: The crossover terminals are nickel-plated.

Crossover Dimensions: L=6.031", W=3.614", H=1.466"

Specifications Note

ABS Magnet Boots: Each woofer features a waterproof, anti-resonant ABS magnet boot, which is removable for installation flexibility. With the magnet boots installed, each speaker has the following dimensions:

  • Magnet Diameter: 3.045"
  • Depth as top: 2.562"
  • Depth as bottom: 2.698"

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