Selenium 18SWS800 18" 800W Subwoofer

Brand:| Model: 18SWS800
Employing a 4" diameter, 4-layer cooper voice coil, non-pressed long fiber pulp cone, and highly reinforced aluminum injected frame, this new design is capable of handling up to 1,600 watts continuous music power.
A restocked/refurbished, or Open Box unit of the product is available -- see it now
  • 4" diameter, 4-layer voice coil wound on a fiberglass former
  • Non-pressed long fiber pulp cone has the necessary stiffness for a linear response
  • Bumped and undercut T-yoke assures maximum displacement
  • Triple cooling system directly cools the gap and the air trapped between the two spiders
  • Highly reinforced cast aluminum frame
Part # 
Weight: 25.84 lbs.  
Order Soon - Only 1 Left In StockMore Due In September 22, 2015
List Price$299.00
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Part # 264-387
Qty:  EA
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Product Details

Selenium 18SWS800 18" 800W Subwoofer

The SWS800 high-power professional subwoofers were specially designed to reproduce sound at the very low end of the audio spectrum. Employing a 4" diameter, 4-layer cooper voice coil, non-pressed long fiber pulp cone, and highly reinforced aluminum injected frame, this new design is capable of handling up to 1,600 watts continuous music power.

Product Specifications
  • Nominal Diameter18"
  • Power Handling (RMS)800 Watts
  • Power Handling (max)1600 Watts
  • Impedance8 ohms
  • Frequency Response30 to 1,500 Hz
  • Sensitivity96 dB 2.83V/1m
  • Voice Coil Diameter4"
  • Magnet Weight120 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)32 Hz
  • DC Resistance (Re)5.8 ohms
  • Voice Coil Inductance (Le)3.87 mH
  • Mechanical Q (Qms)13.72
  • Electromagnetic Q (Qes)0.42
  • Total Q (Qts)0.41
  • Compliance Equivalent Volume (Vas)8.09 ft.³
  • Mechanical Compliance of Suspension (Cms)0.11 mm/N
  • BL Product (BL)24.5 Tm
  • Diaphragm Mass Inc. Airload (Mms)219g
  • Maximum Linear Excursion (Xmax)6.5 mm
  • Surface Area of Cone (Sd)1194 cm²
Materials of Construction
  • Cone MaterialPaper
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerFiberglass
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter18"
  • Baffle Cutout Diameter16.54"
  • Depth8.46"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume2.22 ft.³
  • Sealed F367 Hz
  • Vented Volume6.72 ft.³
  • Vented F337 Hz
Selenium 18SWS800 18" 800W Subwoofer
  • BrandSelenium
  • Model18SWS800
  • Part Number264-387
  • UPC7896359515974
  • Product CategoryPro Woofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (15 Reviews)
  • Weight25.84 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.

View similar products to the Selenium 18SWS800 18" 800W Subwoofer
in the Pro Woofers, Subwoofers & Midrange Speakers product category.


Selenium 18SWS800 18" 800W Subwoofer
Selenium 18SWS800 18" 800W Subwoofer is rated 4.8667 out of 5 by 15.
Rated 5 out of 5 by from This sub woofer rocks!I was hesitant about this purchase at first. But since it was made by JBL, I thought I would give them a try. I am glad I did. This woofer rocks! I bought these to replace a blown JBL 2241GPL. I figured that I would buy one, see how sounds and if I like it I would buy another one. For less that $200 this woofer blew my other sub out the water. They are rated at 800 watts @ 8 ohms so you will need an amp with some nuts to push them. I've already ordered another one.
Date published: 2014-05-14
Rated 5 out of 5 by from Great Sound, Solid Build!I purchased this SUB to replace a blown speaker from a single 18" box (JBL MRX518S) and it fits perfectly. The sound of this SUB is clean and accurate and installation was a snap. Nice solid build! I recommend this speaker to anyone! Excellent service from Parts Express as well!
Date published: 2013-08-28
Rated 5 out of 5 by from Great thumpI am currently using 2 of these in my P.A. rig. I have them installed in a set of Peavey SP 118 cabinets and they sound GREAT! These things are not as efficient as the original drivers but sound much cleaner and deeper. Fantastic quality but are power hungry and need a good amp to push them. I am using two 2000 watt (bridged) Crown power amps on these and they really rock. I will buy these again when I need a new pair of subs.
Date published: 2012-04-13
Rated 5 out of 5 by from Life's Too Short For 6.5" WoofersThis woofer trades a little efficiency for more low frequency response. I get about 37hz @ -3db in a relatively small (for a high efficiency 18" woofer) 4.7 cu ft enclosure. I get a big movie theater sound at home with these in a 3 way configuration. When efficiency balanced with the mid and tweeter (l-pads), they kick hard on dance music and movies without boominess. They are loud enough @ 2W but will shake the walls with 50+W/ch.
Date published: 2011-12-27
Rated 5 out of 5 by from Workhorse driverI wanted my first custom pro 18" to be exceptional, but also affordable enough to eventually build 8 of them (I think 8 will be enough, for now...) I put this in a 40"x18"x24" enclosure with 4X4" precision ports at 13" each. The funky shape is designed to fit 2 into my car easily. This is tuned to around 32 hz. This sub has VERY capable output. I play a lot of hip hop on it and have run it at quite a few events where EDM djs have tortured it. I have run it solo at medium sized events and it keeps up well. It is usually powered with an XLS 402D that produces 900 watts rms bridged. I would say this is the MINIMUM to power this speaker as it can soak up everything the XLS has with no discernible distortion. More headroom would even further open this sub up. The precision ports are absolutely top notch for eliminating port turbulence and after finally hearing them in a pro sound application I never want to build (or hear) another slot ported sub. The sub is very well constructed and is not light. I can however easily move my finished sub by myself. The pictures are of the finished (mostly) sub and from inside the sub through one of the ports. Check out the clusters of tiny holes in the Selenium sticker on the backplate. They are holes that go through the backplate to help vent the voice coil.
Date published: 2011-06-07
Rated 5 out of 5 by from Great product at a great price!I am typically the guy who reads all of the reviews on a product but never leaves any after my purchase. I felt it necessary to make a few comments on this product based on my personal experience. Now on with the review:I purchased these speakers as replacements for a Yamaha double 18" bass cabinet with blown speakers. The original speakers were Eminence and I just wanted more. These speakers deliver on every level such as price, power handling, look and durability. I am a professional disc jockey and use this cabinet every weekend for over 25 hours. The cabinet slams hundreds of people faithfully every minute of every show. I am driving this cabinet with a very old Crown Microtech 1200 brideged mono at over 1200 continuous watts and it is the perfect compliment to these drivers.
Date published: 2011-06-01
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Product Q&A

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Selenium 18SWS800 18" 800W Subwoofer

Hello Matt Will theSe work in a JBL Mpro 418 box. Box is 5.3 cuft with a port of 18x1 7/8" and 1.2" deep. If not these drivers which ones can I use. 

Asked by: Jstelecom
Right now the enclosure is tuned to about 62 Hz. These will work, but you can lengthen the ports to drop the tuning frequency unless you like the punchiness of the originals.
Answered by: MattP
Date published: 2015-06-08

Thank you Matt but I would like to go vented   What would the sqin have be and how deep for the same tuning.  Thank you Jerry

Asked by: FTL music
Vented and ported are the same thing. If you want to use a slot port it will have to be 3" x 9" and 7" long.
Answered by: MattP
Date published: 2014-07-29

Looking to do a 5.5 cuft. Want to tune it to 35-40hz. What should the port size be. I all ready have 4 of them laying around. If they preform the way I want to to, I'll build 4 more. 

Asked by: FTL music
I would recommend a 6" diameter port that is 6" long for a tuning frequency of 35 Hz. With a high pass filter at 30 Hz, this will be able to handle full RMS power without excursion problems.
Answered by: MattP
Date published: 2014-07-29

Capable performer in 6 cubic foot ported box? Looking at this driver or the Eminence sigma pro 18. Which would work best in the given enclosure size

basically seeing which driver would be the best for the box. tuning will be around 40 hertz. thank you
Asked by: bcjason
These two are very very close, in a 6 cubic foot box tuned to 40hz they model within +-0.5dB of each other.I would save $60 and go with the Eminence, made in the U.S.A. and has a longer warranty.
Answered by: mtg90
Date published: 2015-01-23

planning to buy QSC GX5 amp can this handle the power of the speaker

Asked by: jonm
The QSC GX5 will be a fine amplifier for use with this speaker.
Answered by: mikevv
Date published: 2015-01-23
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