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Single 18" 1,200 Watt SDR Series Complete Subwoofer Package with Vented Enclosure and Amplifier

  • Skar Audio designed the SDR-1X18D2 loaded subwoofer enclosure package for those who seek ultimate performance in subwoofer-bass fidelity. This package offers a simplified option to add a competition-grade subwoofer system, without the guesswork involved in designing it from scratch. This loaded enclosure features one of our massive SDR-18 D2 1,200 watt max power 18-inch subwoofers, which arrives pre-loaded and wired up inside of the custom single 18" vented enclosure. We also include the perfect amplifier in this package to power your new subwoofer with the Skar Audio RP-800.1D, which comes with a premium 4 gauge amplifier wiring kit to make installing the system hassle free.

    This custom enclosure used in this package was engineered by Skar Audio specifically for the subwoofer that is loaded in it, ensuring perfect sound and compatibility. The enclosure features a unique kerf port design, allowing for extreme levels of bass output. 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.

    Quick Facts
    Peak Power Handling 1,200 Watts
    Enclosure Configuration Single - 18"
    Included Amplifier Skar Audio RP-800.1D
    Included Amp Kit 4 Gauge CCA Complete Kit
    Final Impedance Load 1 Ω

    The subwoofer comes pre-wired and loaded inside of the enclosure allowing for an easy and hassle free installation. The dual 2-ohm subwoofer is wired up inside of the enclosure so that the final impedance load is configured for 1-ohm at the terminals.

  • Enclosure Specifications
    Enclosure Type Single - 18" Vented (SDR-1X18D2)
    Fit Type x1 SDR-18 D2 Subwoofer (Pre-Loaded)
    Enclosure Style Wedge Design
    Port Type Kerf Style (Maximum Bass)
    Enclosure Feature Double Baffle - Countersunk Design
    Enclosure Finish Premium Black Carpet
    Wood Thickness & Material 5/8" MDF
    Front Baffle Thickness 1.25"
    Internal Air Space of Enclosure 4.75 ft3
    Tuning Frequency of Enclosure 30 Hz
    Push Terminal Location Left Side of Enclosure
    Final Impedance Load 1 Ω
    Amplifier Specifications
    Model Name Skar Audio RP-800.1D Monoblock
    RMS Power at 1 Ω 800W x 1 Ch (14.4v)
    Peak Power at 1 Ω 1,200W x 1 Ch (14.4v)
    Power Supply High-Speed MOSFET
    Power & Ground Input Size 4 Gauge
    Remote Bass Knob and Cable Included Yes
    Amp Kit Specifications
    Model Name SKAR4ANL-CCA 4 Gauge CCA Complete Kit
    ANL Fuse Size 100 Amp - Fuse Holder Included
    Power Cable 17 ft - 4 AWG Matte Blue
    Ground Cable 3 ft - 4 AWG Matte Brown
    Speaker Wire 20 ft - 16 Gauge Matte Blue
    RCA Interconnect Cable 17 ft - 2-Channel Blue Twisted Pair
    Remote Turn-on Wire 17 ft - Blue
    Accessories Ring/Ground Terminals & Vinyl Cable Ties Included
  • Performance
    RMS Power 600 Watts
    Peak Power 1,200 Watts
    Frequency Response 18 - 250 Hz
    Sensitivity (SPL) 87.3 dB
    Enclosure External Dimensions
    Width 25.75"
    Depth 1 (Bottom) Front to Back 23.50"
    Depth 2 (Top) Front to Back 19.75"
    Height 21.50"

Customer Reviews

Based on 13 reviews

This is all you need. It beats hard. Sounds great. I'm very happy with the purchase. With 2 year warranty it should be good to go.

18” sub , amp and wiring package

This set up is the best bang for your buck period. As you see I am running both 18” subs off of the RP 800.1d amp that came with the package during break in.


I wanted to get back into car stereo after 20 years out of the game settling for stock systems. I purchased this 18" subwoofer/amp package when I bought a 2004 Tahoe to "play" with and this is BY FAR the most bass I have ever had, especially for the amount I paid for it. I had just about every size subwoofer and amp possible back in the late 90's and early 00's, and my last system was all Alpine and triple the price...pfffftttt! Where were you SKAR when I was a poor 20 something trying to tweak my amps in the wee hours of the night? I am beyond satisfied with this purchase and have already suggested to a good friend to buy something similar for his SUV. Seeing as how he helped me install this beast I will be happy to help him when he pulls the trigger.


Just got it installed last night.... I love it! My mistake was not paying attention to the length of the wires. I have a 2000 grand marquis. Very lengthy car, so amp is on the floor behind my seat. I needed a few more feet. But OVERALL- the sound quality is perfect!


Have to return it when installed make a weird noise I sent a video waiting on how to return

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