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Pair of 900W RMS JBL 12" Subwoofers

2 x 900W RMS JBL MS-12SD2 12" MS Series Dual 2 ohm Subwoofers

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• 2 x 1800W Peak
• 2 x 900W RMS
• Polypropylene Cone
• Polyurethane/Fabric Surround
• Sealed and Vented Enclosures
• Aluminum Frame
• 56 oz. Barium Ferrit Magnet

Learn more about the 2_ms12sd2

We apologize

This item has been discontinued

Product Highlights


• 2 x 1800W Peak
• 2 x 900W RMS
• Polypropylene Cone
• Polyurethane/Fabric Surround
• Sealed and Vented Enclosures
• Aluminum Frame
• 56 oz. Barium Ferrit Magnet

Description


JBL brand icon

Authorized dealer

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.


JBL MS-12SD2

900W RMS 12" MS Series Dual 2 ohm Subwoofer
Quantity: 2 Subwoofers

General Features

  • 12" Dual 2 ohm MS Series Subwoofer
  • Power Handling:
    • Peak: 3600 watts total / 1800 watts each
    • RMS: 1800 watts total / 900 watts each
  • 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 Pair of 900W RMS JBL 12" Subwoofers Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Pair of 900W RMS JBL 12" Subwoofers Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Pair of 900W RMS JBL 12" Subwoofers Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Pair of 900W RMS JBL 12" Subwoofers 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
900 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)
6.5 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
Minimum Sealed Box Volume
0.95 cubic feet
Maximum Sealed Box Volume
0.95 cubic feet
Minimum Ported Box Volume
1.7 cubic feet
Maximum 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:

2_MS-12SD2

Weight:

30.00lbs

Internal SKU:

2_ms12sd2

Internal Product ID:

88915

Product and How-to Videos


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

Customer Ratings & Reviews



5 star
64%
4 star
9%
3 star
27%
2 star
0%
1 star
0%



Durability
4.2
Value
4.3
Features
4.2
Design
4.7
Usability
4.6

Customer Reviews

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JBL

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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..

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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

The following review is for MS-12SD2, which is a part of the bundle you are viewing.

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

By lito on February 13, 2015

16

found this helpful.

Meets Expectations

2010 Chevy Avalanche. I bought these as an upgrade from 3 10in Pioneer Champion series subs. Put them in a 1 cu.ft. per chamber sealed box and have them powered by a Pioneer GM Digital 8601 mono amp at 2 ohms so they are sharing 500w rms. I've played with them for a few days now tuning and what not, not yet broke in, and I have to say they meet my expectations. They have a good punch for 12's and a good overall sound quality. They hit just as good as the 3 10's I was running but the sound quality seems to be better than the 10's. I'm sure the performance will only continue to improve once they're broke in and I upgrade to a more powerful amp. For the price I'm very satisfied and I never had a problem with JBL products.

By Craig on June 23, 2014

11

found this helpful.

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