MCM Electronics

12" Woofer with Poly Cone and Rubber Surround 120W RMS at 8ohmMCM Part #: 55-2973  |  MCM Audio Select Part #: 55-2973

12" Woofer with Poly Cone and Rubber Surround 120W RMS at 8ohm 4.6 stars from 12 reviews.
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12" Polypropylene Cone Woofer
Low cost general replacement woofer is ideal in a two way cabinets or as a compact subwoofer. It is perfect for a wide variety of home or autosound applications and is ideal for either ported or sealed enclosures.

Also available in 4Ohm Version

Product Description

    General Specifications:
    • Nominal Diameter: 12 inch
    • Rated Impedance: 8 ohms
    • Operating Bandwidth: 50Hz ~ 4KHz
    • Power Handling Capacity: 120W RMS
    • Sensitivity (1W/M): 91 dB
    • Voice Coil Diameter: 1.5 inch
    • Overall frame diameter: 12.20"

    Thiele-Small Parameters:
    • Resonance Frequency Fs: 42 Hz
    • DC Resistance Re: 7.2 ohm
    • Mechanical Q Factor Qms: 3.24
    • Electrical Q Factor Qes: 0.5654
    • Total Q Factor Qts: 0.4772
    • Equivalent Cas air load Vas: 122.6 liters
    • Coil Inductance Le: .9099 mH
    • Efficiency Bandwidth Product EBP 74
    • Voice Coil Over Hang X-max 5mm

    Physical Information:
    • Cutout: 10.94"
    • Mounting Depth: 5.04"
    • Basket: Stamped Steel
    • Magnet Type: 30 OZ
    • Cone Material: Polypropylene
    • Surround: Rubber
    • Dust Cap: Polypropylene
    • Damper: Cloth

Product Reviews

  • "Great replacement woofer" by danj20 on 3/20/2014
    Overall: 5 out of 5

    Let me begin that I am 66yrs. old and I am replacing a 12 " woofer from a Realistic Nova 500 that I purchased back in the Eighties (I know dinosaur time) but the foam surround crumbled away. This woofer was drilled for 6 holes and the Realistic was drilled for 4 holes so I bought particle boards screws from Lowes (no pre-drilling necessary)and just had to screw in 4 holes to mount the new MCM woofer and it worked just fine!!! The existing 2 holes matched up great.
    I am now rocking out to Creedance Clearwater and the classic oldies!! I am alive again! Thank you MCM!!!

  • "Great replacements for Pioneer CS-88 boxes" by mrphilco on 1/31/2014
    Overall: 5 out of 5

    I needed two woofers with six hole mounting to replace the woofers in a pair of Pioneer CS-88 speaker cabinets. These fit very well and sound great...better than I expected after reading some of the reviews. You can hear and feel the bass from these. While they are not quite as strong as your 55-2962 woofers, they still produce a pleasing sound and are an excellent value for the money. If you must have 12 inch woofers with six hole mounting, these are a great choice.

  • "Excellent Woofer Replacement" by Spaker on 11/20/2013
    Overall: 4.5 out of 5

    Used a pair to replace Pioneer 12" from the 1990s tha had rotten foam rubber. They SING. They THUMP. They are perfect for my uses. Ordering hem again for sure.

  • "Great 12" sealed box woofer, odd 6-hole mounting" by jbird604 on 3/10/2013
    Overall: 5 out of 5

    Very good replacement for 12" subs in Lowrey, Baldwin, and other organs with bass speakers in sealed boxes, an awful lot of speaker for such a low price. (If you're superstitious about impedance, it also comes in 4 ohms.) Huge bass and quite efficient, probably sounds better than the originals. Note however the peculiar 6-hole mounting pattern. When putting into a box that had 4 or 8 screws, you'll have to spend a few minutes re-locating or improvising your screws or mounts, though exactly two of them will still be in the right place!

  • "Sound Great" by davisp on 12/5/2012
    Overall: 5 out of 5

    Put these in a 1965 Wurlitzer Jukebox. Very good sound for the cheap price. Super fast shipping.

  • "Just okay..." by fattytca on 9/8/2012
    Overall: 3 out of 5

    They were only $10.99 so what can you expect? I used them to replace some old cerwin vega 12" woofers in a 3 way cabinet.... one of the old woofers was blown. Rather than toss the entire speaker, I figured I'd try a quick fix... My initial thought was that hey, these are made of better material (poly vs. paper), they have the rubber surround vs. foam (which ALWAYS rots in those old CV's), and they're about 25 years newer so it would have to be an improvement, right? Well, they're probably more durable than the old CV's, but they definitely don't sound as good. There is VERY little smooth, low, rich bass from this speaker... I have to turn the volume WAY up to get a fraction of the bass of the old CV's which means that the mids and highs then sound way too loud. I can't be disappointed for $10.99... and yet, I'm disappointed for $10.99... lol.

  • "well" by rocketman9909 on 10/29/2011
    Overall: 5 out of 5

    these are pretty good, they wont be bouncing your car but if you would like to add some quality bass these are pretty good, seem to take their wattage ratings nicely, and look very clean. the 6 holes is a bit weird but that is ok because making new holes is easy.

  • "great price exceptional sound" by djrichyrich on 5/4/2011
    Overall: 4.5 out of 5

    i used these speakers on a project where i built a four way tower speakers and what a surprise ! these are outstanding speakers they have great sound alot of the low end and when they showed up they had a power rating of 400 max instead of the 240 it says here . i dont know if they switched them out because of low stock or its a mis print on the speaker its self but the hit hard i have benn a audiophile for the past 16 yrs and these blow any other cheap replacement i have ever bought .the are just great i have even used them for some of my smaller gigs .all i can say is go mcm they r the best in generic audio.buying to more to run in paralle in my carr so they can run at 4 ohms because my kicker amp is 200 rms bridged at 4 ohms i expect they will sound even better in the car seeing as these seem to have alot of the quaitys that i look for in subs .all i can say is buy these great affordable speakers especialy for those car systems with multipal sub set ups .well have fun speaker it up

  • "Excellent value for money" by tmacpcandaudio on 4/22/2011
    Overall: 4.5 out of 5
    Top 25 Contributor

    For the amount of money paid, these are fantastic hole-fillers. I used two of these these along with two 2.5" full range woofers to create a large mono garage speaker. The cabinetry of this speaker was by all means lousy, consisting of a ~2 cubic feet, 5/8" OSB sealed chamber finished in indoor/outdoor carpet, with woofers running full range and the 2.5"s running with a first order 1khz high pass. The woofers blend very will with the 2.5"s, and have very respectable bass, down to about 40hz. The bass is tight and mellow, not at all boomy, and the midrange was also mellow and subdued. I couldn't have asked for a better configuration for this price. MCM never disappoints.

  • "Exceeded expectations" by pbdwyer on 3/4/2011
    Overall: 5 out of 5

    Purchased to replace blown drivers in Marantz Tower Speakers. Magnets were heavier and rubber surround superior to the foam originals. Non-ported application has a really nice punch, not boomy. Check the specs 50hz may not be low enough to send tremors but i like the tight punchy bass, oh yea price makes these twice as sweet.

  • "Fantastic Performance" by pwalt51312 on 11/1/2010
    Overall: 5 out of 5

    I bought a pair of these 12 inch woofers to replace the woofers in a set of JVC SK-1000's. Wow, am I impressed! Don't let the low price of these speakers fool you. Rated at 120 watts RMS, these babies turned out to be superb replacement speakers! What thunderous bass these speakers crank out. I had a CD player sitting on top of one of the JVC SK-1000 boxes and the bass sound it was putting out made the CD I was playing skip!! Well, enough said. I am very pleased with these fine speakers.

  • "Good for the price" by Winman99 on 9/15/2010
    Overall: 3.5 out of 5
    Top 10 Contributor

    I ordered two of these on Sunday, they were shipped Monday, and arrived Wednesday. That was fast service, way to go MCM! The first thing I noticed when I opened the box was how light the woofers were compared to the originals. Note that the description does state the magnets are only 24 ounce. When I went to put them into the speaker cabinets, I was surprised to find that there are 6 mounting screw holes on the speakers. I've never seen this before, it's always been 4 or 8. I put two screws in the original holes, but had to drill out 4 more. Once installed I gave them a workout. For the price they sound decent, probably better than I expected. That being said, they were put into a semi-expensive set of speakers, and I wish I would have paid more for something better, and probably will down the road. If you're looking for cheap replacements to get an old set of speakers going, these are great, but if you're looking for audiophile sound, fork out the cash for something better.

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Package Specifications & Dimensions
Weight:5.4 lbs.
RoHS Comp:Yes
Warranty:365 days
Need to Return?
Length:12.5 in.
Width:12.5 in.
Height:6 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No
Catalog Pages

MCM Cat 57, Page 158

MCM Cat 56, Page 282

PDF Reference

Requires Adobe Acrobat Reader.

Mfr. Info

MCM Audio Select Logo
Mfr. Name:MCM Audio Select
Mfr. Part Number:55-2973