About the Polk Audio MM651
Polk Audio continues its tradition of making brilliant-sounding speakers in stylishly designed packages their Mobile Monitor (MM) Series speakers look great and sound even better. Each speaker utilizes an extra-strong, extra-small neodymium magnet that saves space and weight, allowing these speakers to fit into more places in more vehicles while still delivering a full sound with lots of kick. Their lightweight carbon composite frames provide strong, flex-free support for the speakers' motor assemblies.
The Polk MM651 6-3/4" speakers feature honeycomb-textured woven glass fiber composite woofer cones that respond very quickly for a clean, crisp, and powerful sound. Large voice coils over an inch in diameter give the speaker high power handling capability and extended reliability.
1" silk dome tweeters add a sweet high end that blends perfectly with the low notes so your music stays in harmonic balance, from the electric bass all the way on up to the cymbals. Swivel mounts on the tweeters allow you to aim the high notes to produce a superior sound stage in your car.
Important Note: These Polk speakers use a low-impedance design to pull more power safely from your car stereo or amplifier. This design is compatible with all factory and aftermarket stereos.
Note: Polk describes this model as a 6-1/2" speaker. Most manufacturers designate this same frame size as a 6-3/4" speaker. For simplicity's sake we list it as a 6-3/4" speaker.
Priced per pair
- 6-3/4" 2-way speakers (pair)
- woven honeycomb glass fiber composite woofer cone with butyl rubber surround
- 1" silk composite dome tweeter with swivel mount
- includes two external crossovers (speaker wire not included)
- certified for marine use
- 2.7-ohm impedance for extra power (compatible with all factory or aftermarket car stereos)
- power range: 15-100 watts RMS (200 watts peak power)
- frequency response: 40-25,000 Hz
- sensitivity: 94 dB @ 1 watt
- top-mount depth: 2-5/8"
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # AA2651-A
What's in the box:
- Two 2-way 6.75" speakers
- 2 Grilles
- 2 Passive crossovers (with wire attached)
- 2 Mounting ring adapters (includes GM/Chrysler 6-3/4G)
- 8 Hex-head screws
- 4 Phillips-head screws
- 8 Speed clips
- Owner's manual
- Product registration information sheet
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Features & specs
|Speaker Size||6 1/2|
|Tweeter Design||1" Soft dome|
|Tweeter Composition||Silk/polymer composite|
|Woofer Composition||Glass Fiber Composite|
|Woofer Surround||Butyl Rubber|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
|Sensitivity (1W at 1 meter)||94|
|Sensitivity at 2.83 volts||N/A|
|Frequency Response||40 - 25k Hz|
|Minimum RMS Wattage||15|
|Maximum RMS Wattage||100|
|Peak Power Handling (Watts)||200|
|Top-mount Depth (Inches)||2 5/8|
|Bottom-mount Depth (Inches)||N/A|
|Cutout Diameter or Length (inches)||5|
|Mounting Height (Inches)||0.8875|
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.
Woofer Cones: Woven glass composite cones feature tremendous stiffness-to-mass ratio. Lower mass means faster transients and finer detail.
Butyl Rubber Surrounds: For a smoother response and improved durability, the woofers use butyl 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.
Silk/Polymer Composite Swivel Tweeters: The 1" liquid-cooled, silk/polymer composite tweeters provide clear, detailed highs. The 15-degree swivel tweeter housings deliver direct, detailed imaging; instantly adjustable through the grille.
Neodymium Magnets: The speaker's neodymium magnets offer exceptional strength to performance ratio and is extremely lightweight.
Large Diameter Voice Coils: Large diameter, 30mm voice coils increase the speaker's reliability and power handling capacity.
Carbon Composite Basket: The speaker's carbon composite basket is lightweight and will not flex during music audio peaks.
Crossover: The speaker comes with two separate 2-way crossovers; one for each speaker. Each crossover's input and output wires are attached. The 38" input lead is terminated with tinned wire and the two 20" output leads (one for the woofer and one for the tweeter) are terminated with female quick-slides. The positive woofer lead has a 0.250" female quick-slide and the negative woofer lead has a 0.187" female quick-slide. The positive tweeter lead has a 0.187" female quick-slide and the negative tweeter lead has a 0.110" female quick-slide. These quick-slides connect directly to the woofer and tweeter terminals on each speaker. The 2-way crossover networks send the appropriate frequencies to each driver for cleaner sound and better imaging.
- Width: 3.5" (3.875" including wire)
- Height: 1.02"
- Depth: 2.645"
Mounting: The speaker itself has 4 mounting holes for a standard 6-3/4" application. The supplied mounting rings have multiple mounting holes for non-standard 6-3/4" and many 6-1/2" applications, allowing the speaker to fit more vehicles.
Grilles: Strong ABS plastic grilles are included. These computer optimized grilles feature a spoke-wheel design.
Marine Certified Woofer: Polk MM Series speakers are built to withstand exposure to moisture and UV rays, so they work well in boats and cars. They also include stainless mounting hardware for corrosion and rust resistance.
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