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Selenium 12MB3P 12" Woofer / Midbass

Brand:| Model: 12MB3P
Overview
Selenium's 12MB3P was developed to excel at midbass sound reproduction in professional speaker systems.
Highlights
  • High efficiency (101 dB 1W/1m)
  • 3" flatwound aluminum voice coil
  • Rugged construction
  • Smooth, extended response for maximum flexibility
  • Suits vented, sealed, and horn-loaded applications
Part # 
264-441
Weight: 18 lbs.  
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Product Details

Selenium 12MB3P 12" Woofer / Midbass

Selenium's 12MB3P was developed to excel at midbass sound reproduction in professional speaker systems. It provides high output with low distortion when used in vented, sealed, or horn-loaded applications. The 12MB3P features high power handling, great efficiency, and rugged reliability, while its smooth, extended response facilitates the choice of driver cutoff frequencies. Its 3" voice coil is wound with flat aluminum wire on a polyimide former, and the moving parts are housed in a low profile injected-aluminum chassis.



Product Specifications
  • Nominal Diameter12"
  • Power Handling (RMS)500 Watts
  • Power Handling (max)1000 Watts
  • Impedance8 ohms
  • Frequency Response90 to 4,000 Hz
  • Sensitivity101 dB 2.83V/1m
  • Voice Coil Diameter3"
  • Magnet Weight92 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)61 Hz
  • DC Resistance (Re)5.3 ohms
  • Voice Coil Inductance (Le)0.48 mH
  • Mechanical Q (Qms)12.55
  • Electromagnetic Q (Qes)0.5
  • Total Q (Qts)0.48
  • Compliance Equivalent Volume (Vas)1.8 ft.³
  • Mechanical Compliance of Suspension (Cms)0.13 mm/N
  • BL Product (BL)14.7 Tm
  • Diaphragm Mass Inc. Airload (Mms)52g
  • Maximum Linear Excursion (Xmax)2.75 mm
  • Surface Area of Cone (Sd)530 cm²
Materials of Construction
  • Cone MaterialPaper
  • Voice Coil Wire MaterialAluminum
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter12.28"
  • Baffle Cutout Diameter11.06"
  • Depth4.65"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.98 ft.³
  • Sealed F3101 Hz
  • Vented Volume2.65 ft.³
  • Vented F349 Hz
Selenium 12MB3P 12" Woofer / Midbass
  • BrandSelenium
  • Model12MB3P
  • Part Number264-441
  • UPC7896359511327
  • Product CategoryWoofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (1 Reviews)
  • Weight18 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Selenium 12MB3P 12" Woofer / Midbass
Selenium 12MB3P 12" Woofer / Midbass is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from You would sell more with correct specs!I own 2 of these drivers and have only tried these in some 1.67 cu. ft. ported test boxes and they sound really great! you have the product listing rating this midbass driver as 300/600 watts. On the speaker magnet it says 500/1000 watts which selenium's spec sheet backs up. I am glad that I dug deeper, cause this stopped me from purchasing these. this speaker even reaches down fairly low,something the freq. response ratings made me think would not happen! GREAT high power drivers.
Date published: 2011-07-03

Product Q&A

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Selenium 12MB3P 12" Woofer / Midbass

Substitute for JBL JRX monitor

I would like to install this driver as a replacement for JBL m-112-8 in a Sounfactor 112 monitor , which I have already replaced the stock horn with Selenium D220Ti . Do you know if this would sound good for electronic DJ / PA applications .
Asked by: DJ pmg
Good sound is subject to opinion, so we cannot guarantee that this (or anything else) will sound good to you specifically. That being said, this is a good quality driver, and should do a great job in combination with the horn driver you're using.
Answered by: RussR
Date published: 2013-01-21

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