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Skar Audio SDR-3X8D2 2,100 Watt Loaded SDR Series Vented Subwoofer Enclosure, Triple 8" D2 Loaded Enclosure

  • Based on 377 reviews
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Availability: In Stock.
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Arrives Monday, Aug 31
Order within 10 hours and 39 minutes
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Size: Triple 8" Loaded Enclosure without Amplifier


Features

  • 2, 100 Watt Max Power Triple 8" Loaded Vented Subwoofer Enclosure
  • Features x3 8-inch SDR-8 D2 700 Watt Max Power Dual 2-ohm Car Subwoofers
  • Enclosure was Engineered for Extreme Bass Output with it's Dual Slot Ports and Single Internal Subwoofer Chamber
  • High Strength MDF Box Construction (5/8") with a Dual Layer (1. 25") Countersunk Subwoofer Baffle
  • Ported Enclosure Tuned at 46 Hz for Deep and Accurate Bass
  • Subwoofers are Pre-wired Internally for a Final Impedance Load of 1. 33 Ohms

Description

Skar Audio introduces the SDR-3X8D2 triple 8-inch loaded vented subwoofer enclosure for those seeking extreme bass output in their car audio system but who are limited by space in their vehicle. Featuring three of the Skar Audio SDR-8 700 Watt dual 2-ohm subwoofers, this 2, 100 Watt max power loaded enclosure was engineered to get loud and low. Achieve head turning levels of bass output with this loaded enclosure and let size and space limitations be a thing of the past. The three dual 2-ohm subwoofers come pre-loaded and wired up inside of this custom triple 8" ported enclosure with a final impedance load of 1. 33-ohms to a single speaker terminal cup located on the backside of the enclosure. This competition grade ported enclosure was designed for ultra responsive, low end frequency response, with all three drivers utilizing a single large shared chamber that shares two advanced slot ports located on opposites sides of the rear of the enclosure. We engineer our products to not only sound great, but to stand the test of time - which is why we construct this enclosure out of only the finest grade medium density fiberboard (MDF). Furthermore, the craftsmanship and build quality of this enclosure are world class and exemplified top to bottom. One such example of this being a double front baffle for enhanced strength that also doubles as a design enhancement allowing the subwoofers to be mounted with a flush finish. Finally, the loaded enclosure is finished in a premium black carpeting that features the Skar Audio logo centered across the top surface of the box. Peak Power: 2, 100 Watts, RMS Power: 1, 050 Watts.

Brand: Skar Audio


Speaker Maximum Output Power: 2100 watts


Frequency Response: 46 hertz


Connectivity Technology: Wired


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Flush Mount


Enclosure Material: Wood


Speaker Type: Subwoofer


Additional Features: Double baffle - countersunk design


Antenna Location: Car


Subwoofer Diameter: 8 inches


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited


Maximum Range: 10 meters


Control Method: Touch


Speaker Size: 8 inches


Woofer Diameter: 8 inches


Water Resistance Level: Not Water Resistant


Specific Uses For Product: Car Audio System


Controller Type: Corded Electric


Processor Count: 2


Unit Count: 1 Count


Item Dimensions D x W x H: 16.63"D x 29.25"W x 11.63"H


Connectivity Technology: Wired


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: Wired


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 inches


Brand: Skar Audio


Model Number: SDR-3X8D2


Model Name: SDR-3X8D2


Built-In Media: SDR-3X8D2 Triple 8" Loaded Vented Subwoofer Enclosure, Skar Audio Decal


Warranty Description: 2 year limited warranty


Number of Items: 1


UPC: 810028810471


Global Trade Identification Number: 71


Manufacturer: Skar Audio


Item Type Name: Loaded Subwoofer Enclosure


Speaker Maximum Output Power: 2100 watts


Number of Power Levels: 2


Frequency Response: 46 hertz


Number of Audio Channels: 1


Impedance: 4 ohm


Compatible Devices: Desktop, Laptop, MP3 Player, Projector, Smartphone, Tablet, Television


Compatible with Vehicle Type: Car


Power Source: Corded Electric


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Aug 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • HAVE TO SEE HOW THEY SOUND ONCE HOOKED UP SHOUT OUT SKAR AUDIO I LOVE IT!!!
Size: Triple 8" Loaded Enclosure without Amplifier
Everything Seems To Look Good Nice 8 Inch Subwoofers!! Was Packaged Well In A Bunch Of Thick Card Board Paper Nice And Sturdy Box Build Kind Of Heavy For Three Eights!! Nice Stiff Surround Cones To Be A Used Box For $239.99 Saved A Ton!! My Package Was Delivered To The Wrong Address On Fathers Day Of All Days What A Day!! I had To Walk Over To The Neighbor House I Barely Even Know And Grab My Package I Assumed The Package Was Mines Cause The Woman That Lives There Was Struggling To Even Move The Box In Her Door!! As I Begin To Grab Box Right Away I Could Feel The Weight Woah!! For A Package That Weighs Supposedly 64Lbs And I Lift Weights!! I Dropped It Once But Luckily I Was On Grass!! And Not Concrete!! You Have To Carry The Box Side Ways Not Upright!! Came With A Piece Of Wood Chipped On The Bottom Front Of Box That's Probably Why Box Was Returned But Ayy I Have It Thankfully!! Shaking My Head, Shout Out SKAR AUDIO!! More In The Future!! But Ayy For The Price Of $239.99 I Can't Complain What A Deal I Got!! Better Then Full Price Any Day!! ... show more
Reviewed in the United States on June 21, 2026 by Dwayne W.

  • Little Powerhouse!
Size: Triple 8" Loaded Enclosure without Amplifier
I have this in a convertible coupe which is horrible for bass and this little box sounds amazing in my car, even with the top down and windows open! I really like how it looks in my car, too. It's size is great as well, being that I have this in a convertible coupe the trunk is not big but I still have plenty of space. I love this setup and would recommend it to anyone who wants a small subwoofer with nice sound and thumps. ... show more
Reviewed in the United States on January 10, 2026 by Elliott

  • A lot of bass
Size: Triple 8" Loaded Enclosure without Amplifier
I see quite a few ppl saying these don't handle what they are rated for, these ppl don't know much about car audio it seems. These are rated for 2100 watts MAX/Peak power, they are 1050w RMS. And they handle that just fine. My 900w Kenwood amp powers them easily. They have great sound, and a beautiful look. The bass does drop off a bit after 30hz or so. So anyone looking for serious deep digital/electronic bass will want something else. Also, they claim to be rated at 1.33ohm, but when I checked them right out of the box, they were at 1.6ohm. This matters if your amp is dynamic based on the ohm received. Lower means more power from your amp. But now that they've had their break in period, they might be lower. Last thing. I expected the logo to be cheap paint or a sticker. Nope. It's embroidered on! It's not coming off for anything. Really does look nice.. All-in-all, I recommend these to anyone who listens to Rock, Metal, or Country music. These excel at this. Edit: Replaced my 900w Kenwood as I had to crank the gain all the way up to move these. Replaced it with the Skar SKv2-1500.1D. Gave it a week to settle and break in. The 2 were made for each other. Subs never sounded so good! Keep in mind, these aren't a 1ohm load. So any watts rated for 1ohm on your amp will be less. But still more than a 2ohm load. ... show more
Reviewed in the United States on October 22, 2020 by Hex

  • Skar for the win
Size: Triple 8" Loaded Enclosure without Amplifier
Alot of people hate on Skar ive had nothing but good experiences these things hit!!!!! Pit them in my old lady's 2011 kia serento and I have 2 15 skars the cats that tell you they blow easily probably doing too much had my 15's for over 5years now no issues and I can tell these will be fine.
Reviewed in the United States on January 10, 2026 by Murt

  • works as intended
Size: Triple 8" Loaded Enclosure without Amplifier
not to shabby, if you looking for something smaller with a little kick this is it, now if your looking for big loud booming go ahead and upgrade
Reviewed in the United States on October 16, 2025 by liltrees

  • happy with this purchase
Size: Triple 8" Loaded Enclosure without Amplifier
still bumping years later
Reviewed in the United States on April 21, 2026 by noelson

  • Sound Amazing!
Size: Triple 8" Loaded Enclosure without Amplifier
Work amazing! Love em!
Reviewed in the United States on April 2, 2026 by Chloe

  • Awesome subs for the price!!!
Size: Triple 8" Loaded Enclosure without Amplifier
I have had a lot of different subs in my life time and these triple 8s are pretty good for the price especially if space is a concern. I'm in korea and i had a super small car something similar to a Chevy Sonic hatch and it fit in the rear with plenty of space to spare. sounded amazing too! Only complaint is that the box is tuned kinda high around 50 htz, and I am use to making my own around 32 htz but who cares it was loud and cheap ... show more
Reviewed in the United States on June 26, 2025 by Tevin Jones

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