Polk Audio teams up with MOMO (the accessories specialist) to bring you the incomparable sound and undeniable style of the MM6 6-3/4" component system. Polk's Dynamic Balance technology minimizes speaker resonance and distortion for ultra-accurate performance throughout the frequency spectrum.

The 1" silk dome tweeter broadcasts clean, detailed high frequencies for "bright without bite." Surface- and flush-mount cups are included for tweeter installation flexibility and pinpoint imaging. The woofer's cast aluminum basket houses a polymer/mica composite cone and butyl rubber surround, delivering strong bass with lifelike extended midrange response.

The crossover features high-grade components, gold-plated terminals, 3-position tweeter level adjustment (0 dB, -3 dB, -6 dB), and a midrange extension switch (for installations where the woofer and tweeter are physically separated). The vented crossover housings allow the crossover components to stay as cool as they look.

Polk/MOMO Winner's Circle

Product Highlights:

  • polymer/mica composite cone with carbon fiber dustcap
  • butyl rubber surround
  • cast aluminum basket and grille
  • 1" silk dome tweeter
  • crossover (3500 Hz high/low pass, 12 dB per octave)
  • 3-position tweeter adjustment and midrange extension switch
  • frequency response 50-20,000 Hz
  • power range 25-150 watts RMS
  • sensitivity 87 dB
  • top-mount depth 2-3/4"
  • 3-year warranty

Why install component speakers?

A component speaker system gives you the best possible performance from your car audio system. A system consists of separate woofers, tweeters, and crossovers, each designed to cover one specific range of frequencies. As separate components, the woofer can move freely to deliver more powerful performance, while the tweeter can be custom-mounted in a better spot up closer to your ears, revealing a whole new world of detail. Separate crossovers are far superior to the simple filters wired into full-range speakers, so the components work together for smoother, more focused sound.

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Hands-on research

What's in the box?

Download owner's manual

  • 2 Component mid/woofer speakers
  • 2 Grilles
  • 2 Component tweeters with attached 11" wires
  • 2 Crossovers
  • 2 Flush mount tweeter cups with attached clamps
  • 2 Surface mount tweeter cups
  • One 15' length of speaker wire for woofers (no connectors)
  • One 15' length of speaker wire for tweeters (both ends terminated with female quick slides)
  • Eight 1-1/8" self-tapping Allen head screws
  • Four 1-3/16" self-tapping screws
  • Two 1" self-tapping screws
  • 8 Speed clips
  • Owner's Manual
  • "Register Online" sheet
  • Product Registration Card
  • 1 Polk Audio/MOMO bumper sticker (6" x 3-1/4")

Product Research

Additional Dimensions


Dynamic Balance Technology: Laser imaging research allows Polk to observe the resonances of different cone materials. Polk engineers have used laser imaging techniques to find the right combination of materials, geometry and construction needed to tune out response distorting resonances. The result is excellent bass and smooth, clear midrange response.

Cast Aluminum MOMO Arrow Basket: The futuristic-looking woofer basket is designed to mimic MOMO wheel designs. The basket is finished with diamond-polished silver metallic paint.

Woofer Cone Materials: The polymer/mica composite woofer cones produce rock solid mid-bass response and lifelike midrange detail. Each woofer is made with a light, but strong, woven carbon fiber dustcap to improve efficiency. The woofers feature 1.5" voice coils.

Motor Cup: The 14.4 oz. woofer magnet is covered by a metal cup made to match the basket's styling. The outside of the cup is finished with diamond-polished silver metallic paint. A red and black acrylic plate with a yellow MOMO logo and a Polk Audio logo is attached to the bottom of the cup.

Butyl Rubber Woofer Surrounds: The butyl rubber surrounds are airtight and durable for long-term reliability and superior bass response.

Tweeter Materials: The 1" dome tweeters are made with a red silk diaphragm for flat response, great inner detail and low distortion. Each tweeter features a neodymium magnet for ultra-high efficiency.

Tweeter Mounting Options: This system includes mounting parts and hardware for flush tweeter mounting and surface tweeter mounting. In both mounting configurations, the tweeters can be pivoted to "aim" their output for the best high frequency response and soundstaging.

2-way Crossovers: The included crossovers include a 12dB/octave, 3500Hz high-pass filter for the tweeters and a 12dB/octave, 3500Hz low-pass filter for the woofers. Each crossover includes a "mid-range extension" switch that allows you to turn off the low-pass filter and send full-range output to the woofer; this feature can be helpful in achieving a better blend of woofer and tweeter output when the two drivers are located far apart from each other. The high-pass filter is made with Mylar capacitor and air-core inductor components for better transparency.

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 "-6dB", "-3dB" or "0dB".

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.

Additional Dimensions

Tweeter Mounting Dimensions:

Surface Mount Flush Mount
Mounting Height 1.196"   0.26"
Depth (0.712" screw depth) 1.203"
Frame Diameter 2.049" 2.501"
Cutout Diameter   NA 2.256"

Crossover Dimensions: W=5.547", H=1.313", D=3.838"

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Product reviews from the Crutchfield Labs

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