MCM Electronics

10'' Die Cast Professional Woofer - 250W RMSMCM Part #: 55-2981  |  MCM Audio Select Part #: 55-2981

10'' Die Cast Professional Woofer - 250W RMS 4.9 stars from 5 reviews.
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10" Paper Cone Woofer
Low cost general replacement woofer is ideal in a two way cabinets or as a subwoofer. It is perfect for prosound applications and is suitable for ported or sealed enclosures.

Also available in 4 ohm Version

Product Description

    General Specifications:
    • Nominal Diameter: 10 inch
    • Rated Impedance: 8 ohms
    • Operating Bandwidth: 35Hz ~ 3.5KHz
    • Power Handling Capacity: 250W RMS
    • Sensitivity (1W/M): 93 dB
    • Voice Coil Diameter: 2 inch
    • Overall frame diameter: 10.47"


    Thiele-Small Parameters:
    • Resonance Frequency Fs: 41.8 Hz
    • DC Resistance Re: 6.3 ohm
    • Mechanical Q Factor Qms: 3.08
    • Electrical Q Factor Qes: 0.655
    • Total Q Factor Qts: 0.54
    • Equivalent Cas air load Vas: 58.079 liters
    • Efficiency Bandwidth Product EBP 76
    • Voice Coil Over Hang X-max 6.5 mm


    Physical Information:
    • Cutout: 9.21"
    • Mounting Depth: 5.12"
    • Basket: Cast Aluminium
    • Magnet Type: 40 OZ
    • Cone Material: Non-Pressed Paper
    • Surround: Cloth
    • Dust Cap: Paper
    • Damper: Cloth

Product Reviews

  • "Fabulous in an Open Baffle!" by richmeinke on 1/11/2014
    Overall: 5 out of 5
    Value:
    Quality:

    Have 2 per channel in and open baffle powered by a Yung plate amp with 6db boost combined with a Tang Band 4" bamboo full-range. I'm totally astonished at the value and performance of these woofers and the system in general.

    Clean, tight and fast. Highly recommended!!!

  • "Exceptional loudspeaker" by Thtumpy on 12/14/2013
    Overall: 5 out of 5
    Value:
    Quality:

    MCM Part #: 55-2981
    I recently purchased two of these guys for use as woofers in a two way high fidelity system, in which the crossover is 2nd order at 200 hz. The upper register is handled by an 8 inch high end coaxial purported to have a response to 22 kHz.
    The units purchased were given a gruelling series of tests, pushing them to their limit while measuring voice coil temperature rise and the like. I was quite impressed at the handling of sine wave signals of the order of 13 hz and diaphragm excursions of 6.5 mm. Under those conditions, voice coil temperatures rise PDQ (pretty darned quick). While that can be considered unrealistic, I have seen the results of speakers that were overdriven to the point of excessive voice coil temperatures resulting in smoke and flame which had to be quite an exciting event. While that may seem out of place here, it is considered to be a testimonial to this speaker. The temperature of the coil was taken from ambient (80F) to 130F in less than a minute. The purpose was to determine the rise in coil resistance and its effect on the alignment. The result of that experiment is far beyond the scope of this review. Suffice it to say, the little fella handled it very well. I'm considering buying 2 more as the sale price is way too good. May even go for 4 if I can't find anything else to add to get past the minimum requirement for free shipping.

    A note on the stuffing. This can be ambiguous as light, medium and heavy are relative and/or subjective. None of the test equipment I use has ears.

    And a note on cabinet bracing. Three mutually perpendicular braces are recommended. Top to bottom, side to cide and front to back, screwed or bolted and glued at the point of intersection and well glued and screwed to the panels. Ya don't want them creaking loose. Use pine or similar stock of at least 1.25 inches square. It is extra work but the result can be quite rewarding. Cabinet panels vibrate and generate sounds of their own. While this is undesireable for high fidelity uses, a musician might find that this gives the sound for which he/she has been looking. The unique sound of a Stradivarius is mostly the result of the wood used to make the instrument and probably unknown to Stradivarius at the time he purchased the wood. To my knowledge, it had never been duplicated.

    Three alignments are given below.

    Vented enclosure - optimum flat response for high fidelity.
    This gives the smoothest (flattest) response which may not be desireable for musicians.

    Volume: 2.8 ft^3; light to medium stuffing; minimum vent dimensions for Xmax: 3.5" dia. by 3.0" long. or for a more convenient diameter of 4.0", the length becomes 4.63" (4 5/8)

    The cabinet is tuned for f3 (3 dB knee) at 34 hz. (knee is the 3 dB down point)

    The response is close to flat from 44 hz with a slight rise peaking at 1.2 dB at 70 hz between 44 hz and 125 hz.



    An optional alignment for more bass output at the expense of raising the low frequence limit.

    Volume: 1.1 ft^3; light to medium stuffing; minimum vent diensions for Xmax: 4.5" dia. by 9.625" long.
    Since this alignment limits the ultra low end, Xmax can be limited a little by using the following vent.
    Diameter: 4.0" length: 7.162" (7 5/32)

    The cabinet is tuned for f3 (3dB knee) at 54 hz.
    The response rises slightly to 3.5 dB at 60 hz between 89 hz and 250 hz. That's the added punch some musicians like.



    This third alignment is for a closed (sealed) cabinet. It is optimised for a Qtc of 0.707 for optimum damping of the diaphragm. (tight bass) The tradeoff is low frequency output.

    Volume: 1.0 ft^3 Qtc: 0.707 f3: 67 hz. Medium to heavy stuffing.

    There is no bump in the response. It is flat to 115 hz and drops slowly to -3dB at 67hz. At 51hz, it's -6dB. If the coals aren't being shoveled into the speaker, a slight bass boost can applied. Keep in mind that 6 dB is a power factor of 4:1; 3 dB is 2:1.

  • "Best choice for Bass Guitar Cab" by recording on 7/11/2012
    Overall: 5 out of 5
    Value:
    Quality:

    I use these speakers over and over for bass guitar cabinets. My customers can't understand how I can give them such a great cabinet for the money? It's because these speakers outperform other speakers costing three times as much or more. Can't beat them and I have tried. Check the spec's, great, great, great!

  • "Great speaker..." by webwiz355 on 6/16/2012
    Overall: 4.5 out of 5
    Value:
    Quality:

    I bought four of these to try in an acoustic 410 cabinet for bass and was totally blown away by the sound these guys produced. Nice and tight bass response and clear as a bell mids..the high end came up a little short but a small amount of eq took care of that. In fact the only draw back I could find was they dont have a 4ohm version of this same speaker (wish list) so I could try them in my ampeg cabinets. (reason for only 4stars for features) I would definitely recommend these if 8ohm is all you need... you wont find a better bass speaker for the money

  • "Bass guitar driver of the century!" by tmacpcandaudio on 9/21/2011
    Overall: 5 out of 5
    Value:
    Quality:
    Top 25 Contributor

    I recently bought a pair of these for use in a ported 2x10 bass guitar setup, and they were outstanding for this application! With no EQ, the tone is balanced and subdued, with the speaker providing very little voicing to the sound. This is very much unlike 10"ers from Eminence, which have that characteristic inflated midrange bump that barks at you. Not a sound I nor my clients are looking for. Put a medium-sized loudness EQ onto these, though, and the results are much different. These woofers transform into aggressive, deep, heavy things, with deep, deep lows and aggressive, angry midrange. No, they don't reach up as high into the midrange as bona-fide "bass guitar" drivers, but in my eyes, that's a good thing. They trade bloated sensitivity and nasally mids for heavy, thick tone. As far as the sheer bass performance is concerned, these are winners. Real low E is achieved, with extension well into the 5-string range. They love power, and they love the bass knob turned up. That said, it wasn't all a perfect experience. I did get a bad one, had a buzz at 80hz at volume. Luckily for me, MCM customer service is second to none, they sent me out a replacement with no return, no questions asked. Thanks MCM! Keep offering killer products and killer service, and I'll keep coming back. You guys never let me forget why I'm a reseller.

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Package Specifications & Dimensions
Weight:9.04 lbs.
Hazardous:Yes
RoHS Comp:Yes
Warranty:365 days
Need to Return?
Length:11.25 in.
Width:11 in.
Height:6.25 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No
Catalog Pages
Catalog/Page:

MCM Cat 57, Page 159

MCM Cat 56, Page 284

PDF Reference
Datasheet

Requires Adobe Acrobat Reader.

Mfr. Info

MCM Audio Select Logo
Mfr. Name:MCM Audio Select
Mfr. Part Number:55-2981