Polk Audio's Mobile Monitor Series subwoofers bring out superior performance from lighter materials, so you'll get the impact you want without the extra weight of a conventional system. Advanced engineering and optimized components reproduce your sound with uncompromising accuracy, for low end that is rich and clear.

The MM1540D 15" dual voice coil subwoofer handles up to 425 watts RMS, using a copper voice coil and neodymium magnet motor to drive the polymer cone with exceptional efficiency. The carbon composite basket features a "wagon wheel" design that resists flexing during heavy excursion, so your sub hits solidly without distorting. The dual 4-ohm voice coils offer options for wiring a multi-sub system or drawing maximum power from your mono amplifier.

This sub is certified for marine use, and Polk includes corrosion-resistant stainless steel mounting hardware.

Product Highlights:

  • 15" subwoofer with dual 4-ohm voice coils
  • polymer cone with butyl rubber surround
  • carbon composite basket
  • certified for marine use
  • optional matching grille complements the basket design
  • power range: 100-425 watts RMS
  • peak power handling: 800 watts
  • frequency response: 18-150 Hz
  • sensitivity: 89 dB
  • top-mount depth: 4-1/2"
  • sealed box volume: 1.50 cubic feet
  • ported box volume: 2.50 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Hands-on research

What's in the box?

Download owner's manual

  • 15" Dual 4-ohm voice coil subwoofer
  • Foam gasket
  • Eight 1-1/2" Allen head self-tapping screws
  • 8 Speed-clips
  • Owner's manual (English/ French/ Spanish/ German/ Italian/ Portuguese)
  • On-line product registration information

Product Research

Features
Enclosure Compatibility

Features

Klippel Optimized: Using a state-of-the-art Klippel Distortion Analyzer, Polk engineers were able to optimize the woofer's motor structure, voice coil alignment and suspension for the best possible performance, even at extreme listening levels.

Polymer Woofer Cone with Butyl Rubber Surrounds: The Polymer woofer cones and butyl rubber surround will not break down over time and will survive the rigors of harsh automotive environments.

Voice Coil and Former: The high temperature 50mm copper voice coil and polyamide former withstand the most rigorous use while maintaining extremely low distortion for bass punch and output.

Dual 4-ohm Voice Coils: This woofer features dual 4-ohm voice coils, offering wiring flexibility. When the voice coils are wired in parallel, the woofer presents a 2-ohm load. When wired in series, the woofer presents an 8-ohm load.

Carbon Composite Basket: The woofer's carbon composite basket is lightweight and will not flex during music audio peaks.

Input Terminals: The nickel plated heavy duty input spring-post terminals accommodate pin connectors, single or dual banana plugs, or bare speaker wire up to 10 AWG.

Preconditioning Period: Mobile Monitor subwoofers will achieve optimum performance once they are thoroughly broken in. To break in your new MM subwoofer, play 20 to 30 hours of music at moderate levels.

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.

Enclosure Compatibility

Sealed Box Volume: Polk recommends mounting this woofer in a sealed enclosure made of 3/4" MDF with an internal volume of 1.5 cubic feet.

Ported Box Volume: Polk recommends a ported enclosure made of 3/4" MDF with an internal volume of 2.5 cubic feet using a slot port measuring 18.5" wide x 1.25" tall x 20" deep.

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 open the box, verify contents, 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.

Polk Audio MM1540D Reviews

Average Customer Review:

14 reviews
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Incredible Bass

Written By Luke B., Upstate,NY on Thursday, May 30, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

This subwoofer produces clear punchy bass.It really impresses.I have used or currently own Pioneer, Jl Audio, Infinity , Orion ,Boston and this is excellent for the price.

Pros: Price,sound quality

Cons: None

polk mm 1540d

Written By Pedro, san juan on Sunday, May 12, 2013

Sonido perfecto en un cajón pequeño

Perfect sound in a small box

Pros: Calidad polk Polk Quality

Crutchfield response on Monday, May 20, 2013 Translation provided by Crutchfield's Spanish Sales & Support team. Visit our new Spanish-language site at www.crutchfieldenespanol.com.

Excellent Sub/Great Value!

Written By Mojo, WI on Tuesday, April 30, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I am very impressed with this sub. Great fit-doesn't take up a ton of space for a 15", and sound is exactly what i was looking for. Crutchfield's customer service and price on this item was unbeatable.

Pros: Shallow build for a 15" Sub. Clean, tight base. Purchased on a sale price of about $90.00, and for this sub, you cannot go wrong.

Cons: None

Polk Audio MM1540D

Written By Anonymous, palestine, tx on Wednesday, April 24, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

built a custom box for this sub to fit in behind the seat of a 96 chevyChevy reg cab to replace 2 12s still in the break in period but sq is much nicer than be not as boomy but more leg room and flexes the panels fairly well would recomend to any one wanting to put in their vehicle

Pros: Very shallow

Cons: None yet

Great subs

Written By Nate, Leesport, PA on Sunday, April 21, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Sturdy frame, great subwoofer surround give this sub some amazing low bass in such a small depth Bought these for my friend on sale and they sound great, a little weird on some bass, but it's a ported box and polk actually recommends sealed but he already had the box

Pros: Great, loud sound

Cons: N/A

Excellent

Written By Dan, Joburg, Mi on Wednesday, April 17, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Excellent speaker, sound quality is incredible. Very happy with my two 15's.

Pros: Everything

Cons: Carry hearing protection.

Low and quick response

Written By Zack, Gaylord, MI on Monday, April 08, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I really don't have anything bad to this say about subwoofer. The price break made it an incredible deal. My buddy picked two up and sealed them, hits low and has great response. I am looking forward to porting these in a 2.5 cubic foot box with a 60" port length tuned to 27 hz. Which reinforcing half full and double waves. build

Pros: Shallow, fits many apliccations. Isn't that power hungry compared to the power needed Quality build with light manufacturing Great sound quality.

Cons: Can't think of one yet

Good sub

Written By Gmloo33, Mountain, ND on Sunday, April 07, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

An awesome sub I'm Running it in a 2.5 ft.³ box with a 1.25" x 18.5 x 20 inch vent. It hits hard and low with very little power.

Pros: Very shallow mounting depth with a long excursion. Doesn't require a lot of power. Has a fantastic gasket.

Cons: Takes some time to break in.

Polk Audio MM1540D

Written By gweb63, Lynchburg,VA on Sunday, April 07, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

great price!

Very Good Subwoofer

Written By jimboi, Morriston,FL on Monday, April 01, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

These subwoofers handle all and more of the RMS power stated. In a good slot ported box they hit all the frequence ranges very well an sound great. I have 6 of these which I havent played any yet but I have 4 of the single 4 ohm subs on a MB Quart 2000 mono amp an they pound hard ; )

Pros: Great high an low bass, dont really sound distorted if maxed out, light and easy to use.

Cons: its hard to find with most car audio items for cheap price but I cant see any problems with these at all

2 15's in ported box

Written By Shaun, Indianapolis, IN on Tuesday, March 26, 2013

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

These are great 15s. I just installed 2 in a ported box. 5.4cf total space. They are so loud and clear. They are probably the best sounding 15s I have ever heard. I also spoke to a Polk Audio specialist for probably 20 minutes regarding box sizes and amp configurations. I would definitely buy again

Pros: They are great sound quality and are very loud. I would put these subs against any other brand. SPL and SQ

Cons: Non

Hits Hard

Written By Bailey, Jacksonville fl on Saturday, March 16, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • rating
    Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Hits hard for a 10 mounted under the steering wheel on my boat cant even see it. Looks like it will survive in the marine environment

Wow

Written By Bman 350, Lewiston, Id on Saturday, March 02, 2013

Crutchfield Customer Review (What's this?)

  • rating
    "Coolness Factor"
  • rating
    Build Quality
  • rating
    Ease of Use
  • rating
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  • rating
    Value

Great sub for the price. I squeesed this into a 16 inch box to replace my center console. Has @ 2.2 c.ft. air space. Pioneer GM-D8601 amp powering it. Very great sounding sub. Cant beat the price. I feel like I stole this sub from Crutchfield. : )

Pros: Price and thump. boom boom pow.

Cons: Wife said no to two.

POLK MM 15" SUBWOOFER

Written By JESUS, Arizona on Friday, February 01, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Sounds really good! Lots of bass, once it's broken in. It's only 4-1/2" deep, making easy to install and to make a custom box. I'm only putting 400 watts and it's wanting more power. Would recommend to any one, who has te space. I also got the grill for a good price, which makes it look good. Plus I got a really good deal from Crutchfield!!!

Pros: Very light n thin!!!

Cons: None

Get everything you’ll need to enjoy your new Polk Audio MM1540D

We've verified that these enclosures are a good match for this subwoofer.
It's critical to have good wire, and none is included with the sub.
Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
These can be useful if you are building a custom box.
Sound Ordnance™ Bass Bunker

Sound Ordnance™ Bass Bunker

Sealed single 15" subwoofer enclosure (Model BB15-150S)

Item #: 777BB15150

(6)

$79.99
Add to Cart
T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1

(13)

T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1

(30)

Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B

(53)

Dynamat Xtreme Trunk Kit

Dynamat Xtreme Trunk Kit

5 sheets, 20 square feet

Item #: 15419405

(14)

$169.99
Add to Cart
Dynamat Xtreme Wedge Pack

Dynamat Xtreme Wedge Pack

1 sheet, 4 square feet

Item #: 15410425

(7)

$39.99
Add to Cart
Dynamat 19100

Dynamat 19100

License Frame Kit

Item #: 15419100

(15)

$14.99
Add to Cart
Dynamat Dynaliner

Dynamat Dynaliner

One 54" x 32" sheet (1/8" thick)

Item #: 15411101

(6)

$69.99
Add to Cart
Polyester Fiber Stuffing

Polyester Fiber Stuffing

Make your subwoofer think it's in a bigger box (1-pound pack)

Item #: 027808

(36)

$12.99
Add to Cart
Metra Box Carpet

Metra Box Carpet

Carpet roll (54" x 5 yards) — available in 3 colors (Black)

Item #: 120TL3015

(24)

$39.99
Add to Cart
Rubber Feet

Rubber Feet

Item #: 125F1692

(4)

Metra Speaker Terminal

Metra Speaker Terminal

Round terminal cup with binding post connectors (for do-it-yourself box builders)

Item #: 120TCRB

(13)

Corner Protectors

Corner Protectors

Item #: 1251536

(5)

Metra Speaker Terminal

Metra Speaker Terminal

Square terminal cup with binding post connectors (for do-it-yourself box builders)

Item #: 120TCSB

(7)

Springback Handle

Springback Handle

Item #: 125H1051K

(2)

Metra Speaker Terminal

Metra Speaker Terminal

Round terminal cup with spring clip connectors (for do-it-yourself box builders)

Item #: 120TCRS

(6)

Metra Speaker Terminal

Metra Speaker Terminal

Square terminal cup with spring clip connectors (for do-it-yourself box builders)

Item #: 120TCSS

(7)