Selenium 8W4P 8" Woofer

Brand:| Model: 8W4P
This woofer offers excellent performance in the mid frequency range and is great for sound reinforcement in nightclubs, dancing halls, auditoriums, bands, or for use in studio monitors.
Part # 
Weight: 8.37 lbs.  
List Price$72.99
You Save21%
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Part # 264-424
Qty:  EA
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Product Details

Selenium 8W4P 8" Woofer

This woofer offers excellent performance in the mid frequency range and is great for sound reinforcement in nightclubs, dancing halls, auditoriums, bands, or for use in studio monitors. Features epoxy painted reinforced steel frame, impregnated fabric surround, and impregnated long fiber paper cone.

Product Specifications
  • Nominal Diameter8"
  • Power Handling (RMS)150 Watts
  • Power Handling (max)300 Watts
  • Impedance8 ohms
  • Frequency Response100 to 6,500 Hz
  • Sensitivity96 dB 2.83V/1m
  • Voice Coil Diameter1.81"
  • Magnet Weight44 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)107 Hz
  • DC Resistance (Re)5.2 ohms
  • Voice Coil Inductance (Le)0.79 mH
  • Mechanical Q (Qms)13.2
  • Electromagnetic Q (Qes)0.74
  • Total Q (Qts)0.7
  • Compliance Equivalent Volume (Vas)0.32 ft.³
  • Mechanical Compliance of Suspension (Cms)0.33 mm/N
  • BL Product (BL)9.88 Tm
  • Diaphragm Mass Inc. Airload (Mms)20.2g
  • Maximum Linear Excursion (Xmax)2 mm
  • Surface Area of Cone (Sd)250 cm²
Materials of Construction
  • Cone MaterialPaper
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter8.07"
  • Baffle Cutout Diameter7.2"
  • Depth3.66"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.61 ft.³
  • Sealed F3131 Hz
  • Vented Volume0.95 ft.³
  • Vented F368 Hz
Selenium 8W4P 8" Woofer
  • BrandSelenium
  • Model8W4P
  • Part Number264-424
  • UPC7896359515783
  • Product CategoryPro Woofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (13 Reviews)
  • Weight8.37 lbs.
  • California Prop 65

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

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Selenium 8W4P 8" Woofer
Selenium 8W4P 8" Woofer is rated 4.8462 out of 5 by 13.
Rated 5 out of 5 by from Small speaker with big sound!These are fantastic speakers that perform better then expected. Very good response with a clean smooth sound.
Date published: 2015-05-11
Rated 5 out of 5 by from Great WooferI bought six speakers to fix up some KLH 900B's I found in the trash. The woofer is great, magnet is very heavy. The midrange is bright, brighter than my Yamaha NS10's (and I always thought the 10's were too bright), that being said they sound great. Great clarity coupled with the tweeter. To mount the tweeter I had to file and notch for connectors. I mix on JBL 4328P's and reference revamped KLH's to check if I'm to bright...
Date published: 2015-01-14
Rated 5 out of 5 by from Great for my chucheroI put two of these in a small sealed cab with a single st350 tweeter and use it in my car. they are very sensitive (loud even with low power). But when you pour on the watts and crank the volume it is simply amazing. they do NOT distort, the more you turn it up the more it wants. many people have said they can't believe such small speakers are able to get so loud, aaand Clear.
Date published: 2013-07-22
Rated 5 out of 5 by from Custom 2x8 (with tweeters) 2 way application - PICTURE INCLUDEDUsed 2 woofers per cab, ported and rolled off at 80hz (electronic highpass) and crossed over over again at 2.5kHz (passive filter network, LR 12dB/octave). Couldn't believe the detail these provided! I heard things in music I have never heard before with other drivers.Running 300 watts RMS per cabinet for DJ/Livesound. Amazing output for such a small cabinet!Selenium makes great drivers!!!
Date published: 2012-03-16
Rated 5 out of 5 by from Great and LOUDThis thing is very clear and captures the lower frequencies very well. Its so loud it overpowers my tweeters
Date published: 2012-03-08
Rated 5 out of 5 by from Best 6" speaker by far!!!I've been installing these in cars for at least 6yrs+.. The sound that comes from these little guys is unbelievable when putting the right amount of power on them.. They also sound great with 30-50 watts too..Great speaker!
Date published: 2011-10-25
  • 2015-07-28T06:57CST
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Product Q&A

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who own this product or have experience with it.
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please email tech@parts-expresss.com  for a prompt reply.
Selenium 8W4P 8" Woofer

What is the 1w/1m sensitivity for this speaker. It says 96 dB @ 2.83V/1m ?  Thanks

Asked by: LHA1
For 8 ohm speakers the rating is the same for the 1w/1m measurement, so it would still be 96 dB at 1w/1m.
Answered by: GregT
Date published: 2015-05-19

I need to replace two 8 inch, 8 ohm woofers for a Boston T1000 speaker.  Will the Selenium 8W4P be an acceptable replacement or is there something more appropriate?

Asked by: Kim Reed
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-05-14
  • 2015-07-28T07:55CST
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