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

149 Reviews

Current Price:$279.99
Sale Price:


Skar Audio engineered the SDR-3X8D2 triple 8-inch loaded vented subwoofer enclosure as a simplified solution to add a competition-grade subwoofer system in your vehicle. This loaded subwoofer enclosure features three of our powerful SDR-8 D2 700 watt max power 8-inch subwoofers, which arrives pre-loaded and wired up inside of the custom triple 8" vented enclosure. The enclosure features a unique kerf port design, allowing for extreme levels of bass output and sound accuracy. Furthermore, the enclosure is finished in premium grade black carpet for a sleek appearance and features the Skar Audio logo in white on the top surface of the box. The subwoofers come pre-wired and loaded inside of the enclosure allowing for an easy and hassle free installation. The dual 4-ohm subwoofers are wired up inside of the enclosure so that the final impedance load is configured for 1-ohm at the terminals.
This enclosure was engineered by Skar Audio specifically for the subwoofer that is loaded in it, ensuring perfect sound and compatibility. Every subwoofer is different, and when buying a loaded enclosure it is so critical to ensure that the subwoofer and enclosure are an ideal match, or you will lose sound quality and output. With this loaded subwoofer enclosure model, all of those concerns are eliminated, making it easier than ever to add powerful aftermarket bass to your vehicle.
Product Info
General Specifications
Triple 8" Ported 2‚100W Peak Power Loaded Subwoofer Enclosure
Port Type
Dual Rear Slot
RMS Power
1050 Watts
Wood Type
Peak Power
2100 Watts
Port Width
Enclosure Type
Subwoofer Size
Wood Thickness
Enclosure Style
Universal Fit Wedge Design
Number of Ports
Enclosure Finish
Black Carpet
Qty of Subwoofers
Final Impedance Load
1.33 Ω
Included Subwoofer(s)
SDR-8 D2
Number of Subwoofer Chambers
Internal Air Space of Enclosure
1.50 ft3
Number of Terminal Cup Connections
Technical Specifications
83.8 dB
Frequency Response
30 - 350 Hz
Tuning Frequency of Enclosure
46 Hz
Enclosure External Dimensions
Depth 2 (Top)
Depth 1 (Bottom)

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Customer Reviews


Based on 149 reviews

  • Amazing.
    Reviewed on 2/4/2020 by Daniel
    Verified Buyer
    I actually meant to cancel this order, as I ended up going with the triple 8” empty enclosure and three MA 8’s. I received these anyways and I will be giving these to someone, but
  • Jeep Build
    Reviewed on 10/3/2021 by john
    Verified Buyer
    Just got the amps mounted the marine 6.5 put in and wired up skar cross over put in place and ready to go waiting on the two amp installation kits to come in and I’m ready to put
  • Happy Customer
    Reviewed on 6/14/2022 by Jerry
    Verified Buyer
    Very nice product. Box is crafted very well and looks great. The subs hit hard and loud. Would definitely recommend to anyone looking to upgrade their system.
  • These Subs BANG!!!!!!!
    Reviewed on 5/5/2022 by Robert
    Verified Buyer
    I was skeptical never had Skar before but im sold best BANG for your buck!!!!
  • Love
    Reviewed on 4/8/2022 by Hannah
    Verified Buyer
    Just got my triple 8s in today!!! Just waiting on my amp to come in ! Can’t wait to hook them up. Love the box, shipping was fast.
  • Triple 8s
    Reviewed on 4/4/2021 by Michael
    Verified Buyer
    I purchased the triple 8s for my sons car the size of the box was a concern because of the tank and compressors but fit perfectly and sound awesome Thanks
  • Null
    Reviewed on 7/4/2020 by Steven
    I never expected a sound like this from 8' subwoofer. Definitely 5 🌟.
  • Bad Then Good
    Reviewed on 5/26/2022 by Noah
    Verified Buyer
    I feel like these need some breaking in to sound better, first put em in and they sounded like ass, quiet and shit, put em like a good 3 inches from the wall of my trunk and they s
  • Best For Trunks
    Reviewed on 5/7/2022 by Karl
    Verified Buyer
    One of the subs the rubber surround tor but it was a easy fix with some strong ass glue but I mean I was surprised how hard these little baby subs hit they really can get loud
  • Banginggg!!
    Reviewed on 4/12/2022 by Hannah
    Verified Buyer
    They hit like some 12s! Worth the money. Doesn’t take up much room at all! Love them.
  • Great Subs And Box
    Reviewed on 1/26/2022 by Johnathen
    Verified Buyer
    The subs sound great. They deliver the perfect amount of bass I was looking for. Well worth the money for sure
  • Way Worth It
    Reviewed on 1/11/2022 by porter
    The photo is when I first got them had to much stuff in the car lol. But I got these not knowing about the 8 inch subs and I just wanted something small and that will perform I had
  • Great Subs!
    Reviewed on 12/26/2021 by Eric
    Verified Buyer
    These 3 8's sound amazing. Highly recommend them!
  • Love ‘em
    Reviewed on 12/18/2021 by Daniel
    Verified Buyer
    Fast delivery and they sound amazing I’m going to save up and get another set for my other vehicle and fits perfectly in the back of my Yukon
  • Greta Little Speakers!
    Reviewed on 12/4/2021 by Customer
    Verified Buyer
    Got these at a great price online. Read reviews. Gave them a shot. Have them running on a JL500/1. After some tuning and positioning them for the best sound in my Excursion, yes, t
  • Worth It! Flexing 🔊🔊🔊
    Reviewed on 11/23/2021 by Jacob
    Verified Buyer
    Paired with a skv2 1500 runs subs Handel every watt perfectly! Has my trunk flexing, can fell the punch in your chest. Slightly Better than or as good a 2 Rockford Fosgate p3 10's.
  • Great Buy
    Reviewed on 10/10/2021 by Derrick
    Verified Buyer
    Great buy for 3 8” subs. Nice, punchy bass that doesn’t disappoint. Thanks Skar!
  • Great Compact Deep Bass
    Reviewed on 9/20/2021 by Terry
    Verified Buyer
    Very surprised on how much low frequency came from 3 - 8” amazing little box!
  • Pound Game So Viscous!
    Reviewed on 9/16/2021 by DIZ
    Verified Buyer
    I mean they are as advertised, smashing my trunk with quality sound!..I was like 8's I don't know! Oh it's 💯
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