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JBL MS-12SD2

450W RMS 12" MS Series Dual 2 ohm Subwoofer

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• 1800W Peak
• 450W RMS
• Polypropylene Cone
• Polyurethane/Fabric Surround
• Sealed and Vented Enclosures
• Aluminum Frame
• 56 oz. Barium Ferrit Magnet

Learn more about the ms12sd2

We apologize

This item has been discontinued

Product Highlights


• 1800W Peak
• 450W RMS
• Polypropylene Cone
• Polyurethane/Fabric Surround
• Sealed and Vented Enclosures
• Aluminum Frame
• 56 oz. Barium Ferrit Magnet

Description


JBL brand icon

Authorized dealer

The New Sound of JBL: MS Series Subwoofers

JBL MS-12SD2 Subwoofer JBL MS-12SD2 Subwoofer Cone

The Cone

No sound system is complete without some seriously deep bass. The hard hitting 12" JBL MS-12SD2 subwoofer provides just that. The dual voice coils allow for greater flexibility and more wiring options.

  • Lightweight polypropylene cone
  • Double stitched laminated polyurethane and fabric surround
  • Peak power handling: 1800 watts
  • RMS power handing: 900 watts
  • JBL MS-12SD2 Subwoofer Connections

    The Details Matter

    JBL has carefully engineered and constructed the MS-12DS2 from the ground up to ensure use for years to come. The durable, light weight aluminum basket is nonferrous, which dedicates more magnetic power to the motor assembly.

  • 56 oz. Barium ferrit magnet structure
  • Silver-plated push terminals
  • Stitched tensil weaves
  • Vented pole piece


  • The Sound of quality

    Sonic Electronix, one of the leaders in car audio, recently visited Harman, the premium global audio and infotainment group, at their research and development locations in Northridge, California and Detroit, Michigan. The purpose of these visits was to utilize and combine the powerful brand of Harman and the industry leading knowledge behind Sonic Electronix to begin working together on developing future car audio projects.


    General Features

    • 12" Dual 2 ohm MS Series Subwoofer
    • Power Handling:
      • Peak: 1800 watts
      • RMS: 450 watts
    • Impedance: Dual 2 ohm
    • Polypropylene cone material
    • Laminated polyurethane and fabric surround
    • Vented pole piece
    • Designed for both sealed and vented enclosures
    • Aluminum frame with black epoxy coating
    • 2-1/2" Copper voice coil with Kapton former
    • 56 oz. Barium ferrit magnet structure
    • Silver-plated push terminals
    • Frequency response: 30-400 Hz
    • Sensitivity: 87 dB
    • Authorized Internet Dealer
    • 1-year Manufacturer's warranty

    Subwoofer Wiring Guide


    Wiring Guide to Wire 1 JBL MS-12SD2 Subwoofer

    Mono Amp

    Mono Amp - Option 1

    2 Channel Amp - Bridged

    Wiring Guide to Wire 2 JBL MS-12SD2 Subwoofers

    Mono Amp

    2 Channel Amp

    4 Channel Amp - Bridged

    Wiring Guide to Wire 3 JBL MS-12SD2 Subwoofers

    Mono Amp

    Mono Amp - Option 1

    4 Channel Amp

    Wiring Guide to Wire 4 JBL MS-12SD2 Subwoofers

    2 Channel Amp

    4 Channel Amp

    Specifications & Details


    Subwoofer Specifications
    Series
    MS Series
    Subwoofer Size
    12"
    Peak Power Handling
    1800 watts
    RMS Power Handling
    450 watts
    Voice Coil(s)
    Dual
    Impedance (Per Voice Coil)
    2 ohms
    Voice Coil Diameter
    2"
    Frequency Response
    30 - 400 Hz
    Sensitivity
    87 dB
    Xmax (millimeters)
    29.3 mm
    Subwoofer Design
    Round / Circle
    Main Cone Color
    Black
    Woofer Composition
    Polypropylene
    Woofer Surround
    Poly Coated Cloth
    Magnet Structure
    Single Stacked
    Subwoofer Grille
    No
    Re-Cone Kit Available
    No
    Recommended Enclosure Specifications
    Recommended Enclosure Type
    Ported / Vented
    Sealed
    Optimum Sealed Box Volume
    0.95 cubic feet
    Optimum Ported Box Volume
    1.7 cubic feet
    Top-Mount Depth (Mounting Depth)
    6-3/4"
    Cutout Diameter
    10-15/16"
    Shallow Mount Installation
    No
    Electromechanical Parameters
    Free-Air Resonance (Fs)
    35 Hz
    Equivalent Compliance (Vas)
    49 liters
    Total Speaker Q Value (Qts)
    0.73
    Electrical Q Value (Qes)
    0.78
    Electrical Resistance of Voice Coil (Re)
    3.7 ohms
    Mechanical Q Value (Qms)
    10.08
    Warranty and Return Policy
    Parts Warranty Duration
    1 year
    Labor Warranty Duration
    1 year
    Warranty Provider
    Manufacturer

    Item Details


    Manufacturer:

    JBL

    Model Number:

    MS-12SD2

    Weight:

    15.00lbs

    Internal SKU:

    ms12sd2

    Internal Product ID:

    39485

    Product and How-to Videos


    • JBL MS Series Car Subwoofers
    • Harman International: The Pursuit of Great Sound
    • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

    Customer Ratings & Reviews



    5 star
    60%
    4 star
    10%
    3 star
    30%
    2 star
    0%
    1 star
    0%



    Durability
    4.1
    Value
    4.2
    Features
    4.1
    Design
    4.6
    Usability
    4.5

    Customer Reviews

    Sort by:

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    JBL

    the jbl Ms 12 are a great starting subwoofer and can handle a lot of power. the amp I had couldn't keep up with two of these they were running about 1200 watts at 4 ohm and hit pretty hard

    By Fishy on January 30, 2015

    30

    found this helpful.

    Did okay at first, then not so good

    I bought a pair of these looking for just a nice clean setup. I hooked them up at 2 ohms to my old kicker zx1000 and they did okay. Keeping in mind they may be seeing about half power for the first 2 weeks,and after 50 hours freeair with maybe 100 rms to each sub. Were the subs broke in? Yes. I tuned and clamped this setup to push 800 rms. Now they say 450rms a piece. Really JBL? First the Infinity Kappas sound like crap now these. I guess they sold out like most company's. The subs sound horrible on real lows struggle very sloppy, CANT BELIEVE THIS

    By Fat Nate on June 11, 2014

    29

    found this helpful.

    Pretty Good Subs

    These subs were recommended to me by a SonicElectronix employee on the phone. I gave it some thought and decided to go with these, only because JBL products are used in my home studio so I assume the sound quality is very good. This is supposed to be an upgrade from the do-it-yourself Crunch subwoofer + box I got a couple years ago (and that was a pretty good set-up, actually.)

    These subs are pretty good for the price. I have them amped up to a Belva BB2000D which gives the sub nearly 600 watts rms, although JBL states this sub can do 450 watts rms. Needless to say, they can definitely take the power.

    The only issue I have with these subs is that...they're in a sealed enclosure. So this subwoofer absolutely SLAMS on certain frequencies (roughly 60-80-ish Hz) and anything below that sweetzone, the bass kinda rolls-off. Also, sometimes the subwoofer sounds like it is struggling to hit very quickly, which is odd since I was under the impression that sealed sub boxes give tighter bass response.

    So I honestly can't say whether that's an issue with the enclosure or just a limitation of the subwoofer itself. I need to put this sub into a properly tuned ported box to truly gauge its performance. So until then, I gotta give this sub a 7 out of 10.

    For those who want to go with great sound quality and are on a budget, these are good for the money; they put out good volume and can hit most low notes. BUT if you can afford something better - please buy better. Personally, I have NVX speakers working like slaves in my ride, so I'll be saving up for the NVX x-series subwoofer to complete the package and enjoy sweet blissful bass. But until then - JBL was a descent choice.

    By Jonathan on July 1, 2014

    28

    found this helpful.

    Good Sounding Subs

    Bought 2 of these and stuck them in a vented box. sound is great. hits hard on a PA ac2500.1m amp wired at 2Ohm. worth the money

    By Michael on January 8, 2015

    25

    found this helpful.

    Underwhelmed

    When I received the subwoofer something seemed off about the quality. The holes where the basket meets the cone were misaligned.... Odd for a new subwoofer, but not too major of a problem. After being broken in after a couple weeks the dust cap just came off. Not a big problem either but seriously wtf jbl?
    Honestly it's a decent sub for the money, but I wish I just spent more and got a better sub.

    By Dante on June 2, 2014

    23

    found this helpful.

    JBL MS 12SD2

    Good Speaker For The Money. Good S.Q. Good Power Handling Capability. Overall A Good Speaker.

    By Nathan on April 4, 2012

    24

    found this helpful.

    great product...great price...fast shipping

    this sub is as good as any in its price range and even alot more. classic JBL quality, both in build and sound. hard to beat at this price. sonicelectronix offered great price, easy ordering and very fast standard shipping.

    By classicrockguy on January 2, 2015

    23

    found this helpful.

    awesome speakers,,great pricing..& fast secure shipping..

    these subs are great ,jbl has always been a well known brand & now i know why ,,these subs are very clear ,& hit hard.

    By derell on March 3, 2015

    16

    found this helpful.

    great

    Yes it is a great speaker to have you need to have one

    By lito on February 13, 2015

    16

    found this helpful.

    Worth the price

    The sound good. Can't really complain for what they cost.
    I bought 2 for a enclosed box. After like a week the center JBL plastic cap popped off... No big deal really. Didn't change the sound so I just gorilla super glued it back on and it hasn't come off since. In all reality, you get what you pay for. That being said though I'm still happy with the performance.

    By Justin on February 23, 2015

    11

    found this helpful.

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