MCM Electronics

5 1/4'' Poly Treated Cone WooferMCM Part #: 55-1205  |  MCM Audio Select Part #: 55-1205

5 1/4'' Poly Treated Cone Woofer 3.9 stars from 7 reviews.
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5 1/4" Poly Treated Cone Woofer
Poly treated paper cone driver combines the benefits of a lightweight rigid cone, with the moisture resistance of polypropylene. It is perfect in compact enclosures, multi driver arrays and automotive applications.

Product Description

  • Rubber surround
  • Stamped steel basket
  • 1" voice coil
  • 13.3oz. magnet

    Specifications::
  • Power Capacity: 60W/100W RMS/peak
  • Sensitivity: 91dB (W/M)
  • Impedance: 8ohm
  • Re: 7.2ohm
  • Le: 0.46mH
  • Frequency response: 48Hz~6KHz
  • Fs: 65Hz
  • Qts: 0.77
  • Qes: 0.97
  • Qms: 3.71
  • Vas: 11.00 (liters)
  • Xmax: 2.0mm

    Dimensions:
  • Overall frame diameter: 5.30" (pincushion)
  • Required cutout: 4.76"
  • Mounting depth: 2.56"

  • Product Reviews

    • "Very good speakers at a cheap price" by mark on 9/27/2013
      Overall: 4.5 out of 5
      Value:
      Quality:

      I needed 2 new woofers for an old pair of Optimus speakers. These appeared to fit the bill, and I ordered them. When installed (didn't fit quite right, but I was able to get them in) they brought new life to an old pair of desktop speakers. When connected to my Toshiba System 15, they provide good clarity and range of tone.

    • "The Outstanding Transducer" by Mr Audio on 6/27/2013
      Overall: 5 out of 5
      Value:
      Quality:

      First of all I was attracted by the look of these little things, heavy magnets, 1 inch voice coil, rubber cone surround and enough technical specifications about the speaker. The specs allow this speaker to be housed in either a bass reflex enclosure or in acoustic suspension (closed box) but I chose the latter for a matter of personal taste. Bass reflex cabinet tends to add muddy tone and uncontrolled bass for such small speakers. So I went for an acoustic suspension and chose a Qtc of 1.25 resulting a box of 6.7 liters small enough as a shoe box. I used a Vifa 1 inch 4 Ohms voice coil tweeter and designed a 6 dB/Oct crossover at 3 KHz with Solen high quality capacitors. The tweeter's Fs was enough low (at around 1 KHz) and that's why I chose a 6dB/Oct and also because I was able to limit the crossover to a 3 elements network including a resistor attenuator for the tweeter. Damping material has to be chosen and filled with care, too much may suck out a part of the mid-band natural frequencies. Overall performance was good with a tight and extended bass, well defined midrange with good redition on voices. I found the tweeter to be rather harsh on listening but lately figured out that it was my Aurex SY-335MKII amplifier causing trouble and changed for a Sony TA-3650 which has a more flat response. No need to tweak the tone controls or loudness switch, the loudspeaker speaks by itself. Youngsters must not expect big boomy bass from it as it is intended for quality listening and flat frequency response. F3 is about 80Hz or so and once more don't expect deep bass. A well designed cabinet with medium density 3/4 inch MDF should make this speaker sounds as great as high quality speakers costing $1000 or more.

    • "Good performer if you know how to make it work for you" by dwayne.newton1 on 11/16/2012
      Overall: 4 out of 5
      Value:
      Quality:
      Top 25 Contributor

      Modelling software shows a box volume of about 1.5 cubic feet for this driver in a vented enclosure, making this more suitable for a sealed box design. I wanted to get a sense of how different conditions effected the way this driver behaved. First I loaded it into a vented enclosure measuring 0.23 cubit feet, which resulted in a good deal of flap and buzz. It wasn't doing a good job of reproducing bass notes at all. Next I used a sealed box with no fill. This took care of the distorted bass but the result was still not great as there still wasn't very good response. The finished product is a 0.23 cubic foot sealed enclosure with medium-heavy fill. The result being respectable bass and articulate midrange. I've paired this with MCM Part # 53-1080 1" soft-dome tweeter and it's a match made in Heaven. I know that another reviewer had a bad experience with this product when trying to use it in a vented enclosure that was much too small. If you use this in the proper enclosure with sufficient fill you aren't likely to be disappointed.

    • "one out of four is bad !!" by smokinjoe8 on 9/21/2012
      Overall: 1 out of 5
      Value:
      Quality:

      First let me preface this review by saying I have purchased many speakers and electronic items from MCM with NO issues at all an out standing company..! Now the Bad about this speaker.. I ordered a pair for a KLH 319 project that I am rebuilding.. One of the speakers rattled right of the box., Contacted customer service about a return for this item, very helpful operator sent me another speaker. I then had to call back twice more, both subsequent received speakers had out of the box failures.. I called back ounce more talking with a less receptive customer service operator, she asked me what I wanted to do, I stated that I had a speaker that still needed this Driver and could I please try to get one that worked.. I asked if they wanted me to send the bad ones back, then I made the statement that this is costing them money.. She then made the statement that yes it is and would I just like a credit since she could not guarantee that I could get a working speaker... So in summary I would not buy this speaker.. It would be a crap shoot and not in your favor to get 2 working drivers..

    • "This driver sounds good, HOWEVER..." by PinkLover@40+ on 4/2/2012
      Overall: 4.5 out of 5
      Value:
      Quality:

      I just took delivery of my new MCM 55-1205 drivers this evening, April 2, and installed them immediately into my existing 5-1/4" MTX Monitor 5i bookshelf cabinets. Here's what I have to say about this driver. Their construction quality is excellent, hence my rating above - especially the rubber surrounds! However, although paying just $13.89 apiece plus $10 for shipping, I admit I am just slightly disappointed in the audio quality. They don't seem to have quite as much low-end punch as I thought, despite having the exact same frequency rating as my older drivers did. And despite having a 91dB SPL rating instead of what my old drivers had (88dB), this driver doesn't seem to play near as loud. However, I AM NOT ABOUT to send them back, by any means or for any reason! I can use them with a suitable powered subwoofer, whenever I can afford to buy one. Right now, my budget's kinda tight. The main reason why I bought a pair of these new drivers is because my old ones were beginning to sound like they were on the verge of blowing out on me very soon. Unlike the new drivers, according to specs the old ones were able to handle 100W RMS apiece - but each time I would crank up my amplifier they would scream and sound horrible! And my amp only delivers 40W per channel into 8 ohms, or 75W into 4 ohms. I'm also using heavy 14AWG cables to drive my cabinets, each pair equipped with banana plugs. And so, I couldn't tell you what was up with the cabinets not being able to handle 100W RMS. I also installed a crossover inside each cabinet as well, in hopes to improve the sound. That helped a little, but not too much. The crossovers allow my woofer drivers to run their full frequency range, while the tweeters are kicked in at 3,000Hz.

    • "Automotive use" by cdorlandi on 1/13/2010
      Overall: 3.5 out of 5
      Value:
      Quality:

      While its advert says it is good for automotive use, I found that at temperatures below about 40-50 F they sound like they are blown (i.e. very buzzy and anoying with bass notes and even talking). However, very good sound returns once the temperature rises. Plus, the 8 ohm impedance rating (I didn't note that before ordering), while seemingly incompatible with the usual 4 ohm rating used in cars, doesn't seem to make much difference in fade settings.

    • "Woofer is a freak for the money" by bucksnort on 3/13/2009
      Overall: 5 out of 5
      Value:
      Quality:

      I built a 2-way floorstanding pair of speakers to donate to an auction for a friend of mine who was dying of cancer. I studied loudspeaker design for several years in hopes of getting into the business, but another job came up. You can truly trust me on these specs. I built a 1 cu. ft. cabinet that measured: I.D.= 6"w. X 8.5"d. X 33 7/8" h. with very little internal damping. I used a 1 1/2"dia. X 2 7/16" long port for an F3 of 41 Hz. I located the tweeter as close to the top of cabinet baffle as possible and located the woofer 1/4" between outside frame of tweeter and outside frame of woofer. I placed the port 6" up from the bottom of the front baffle. The crossover was 2,500 Hz at 12 dB per octave and the tweeter was a quality 1" soft dome. My friend's dad won the bid at the auction and paid $850.00 for them. He said that he could have bid on any other item there, but these speakers sounded so good that he "just had to have them". If you have a lower-powered receiver or amp that is rated no higher than 60 wa

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    Package Specifications & Dimensions
    Weight:1.943 lbs.
    Hazardous:Yes
    RoHS Comp:Yes
    Warranty:90 days
    Need to Return?
    Length:6.5 in.
    Width:5.75 in.
    Height:3.25 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
    Catalog Pages
    Catalog/Page:

    MCM Cat 57, Page 166

    MCM Cat 56, Page 293

    PDF Reference
    Datasheet

    Requires Adobe Acrobat Reader.

    Mfr. Info

    MCM Audio Select Logo
    Mfr. Name:MCM Audio Select
    Mfr. Part Number:55-1205