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Skar Audio

Skar Audio SDR-12 D4 12" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer

  • Based on 4,968 reviews
Condition: Used - Good
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Size: 12" - Dual 4 Ohm


Features

  • 12-Inch Dual 4 ohm Car Subwoofer
  • Peak Power: 1, 200 Watts | RMS Power: 600 watts
  • 2.5" 4-Layer high temperature Copper voice Coil
  • High Roll Foam Surround - High flux ferrite motor
  • Frequency response: 22 Hz - 300 Hz | Sensitivity: 84.7 dB

Description

The Skar Audio SDR-12 D4 12" Dual 4-ohm subwoofer was engineered to dish out reliable, hard hitting, and low spectrum sound. Featuring a high flux ferrite motor, This woofer will provide extreme power handling for extended periods of time. The SDR series will quickly become a customer favorite, as it's perfect for people just entering the world of car audio all the way up to seasoned pros. The SDR-12 Dual 4-ohm 12-inch car subwoofer features a 2.5” high temperature 4-layer high temperature copper voice coil that is attached to our Skar Audio signature red spider. The surround on the SDR series is a high roll foam surround which allows the woofer to produce riveting low end bass response. The SDR series has a max power rating of 1, 200 watts and a RMS power rating of 600 watts. Sensitivity (SPL): 84.7 dB, mix: 13.5mm one-way, Fs: 32 Hz, frequency response: 22 Hz- 300 Hz, mounting depth: 7.62".

Brand: Skar Audio


Speaker Maximum Output Power: 1200 Watts


Frequency Response: 300 Hz


Connectivity Technology: Wired


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Enclosure


Enclosure Material: Pressed Paper Cone


Speaker Type: Subwoofer


Additional Features: High Roll Foam Surround


Antenna Location: For Music Players


Subwoofer Diameter: 12 Inches


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Touch


Speaker Size: 12 Inches


Woofer Diameter: 12 Inches


Tweeter Diameter: 12 Inches


Water Resistance Level: Not Water Resistant


Specific Uses For Product: car


Total Ethernet Ports: 2


Processor Count: 2


MP3 player: No


Controller Type: Corded Electric


Unit Count: 1.0 Count


Item Weight: 18.6 Pounds


Connectivity Technology: Wired


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: Wired


Audio Driver Type: Dynamic Driver


Audio Driver Size: 12 Inches


Brand: Skar Audio


Model Number: SDR-12 D4


Model Name: SDR-12 D4


Built-In Media: Skar Audio SDR-12 D4 12" Dual 4 Ohm Car Subwoofer


Warranty Description: 2 year limited warranty


Number of Items: 1


Customer Package Type: FFP


UPC: 767408279031


Global Trade Identification Number: 31


Manufacturer: Skar Audio


Age Range Description: Adult


Item Type Name: Car Subwoofer


Speaker Maximum Output Power: 1200 Watts


Number of Power Levels: 1


Frequency Response: 300 Hz


Number of Audio Channels: 1.1


Impedance: 4 Ohms


Compatible Devices: Car


Compatible with Vehicle Type: Car


Power Source: Corded Electric


Frequently asked questions

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View our full returns policy here.

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Top Amazon Reviews

    • They make my hair move...sound really great when tuned. And make people angry at will.
Size: 12" - Dual 4 Ohm
Bought 2. Setup in 1Kw 4 ch stereo setup. 2 ch for l&R subs. 2 ch L&R mids highs. For reference music, aka old people moosak. Placed speakers in a dual L&R ported, single passed enclosure. With separate tuned section for mids tweets. The subs ring sweet and mellow on symphonies and bang Space Wizard like a champ. I wanted stereo! love the nice left right hit you get from independent subs! I cant say enough for the Skar value! I know these are value line, not the hiline powerhouse speakers.. But in a ported enclosure. Tuned, crossed and setup. They SHINE! The speakers at 250 watts each are so fricken loud you need earplugs for anymore power. But sound 100% on point NO distortion, butter FAT! Exactly like they should. Yes I can go 500each...why? No one would stay in car with me! They would hit me in anger and leave lolz! Even at half volume i get the are you serious looks . Me- Hey sorry! I may be old, but I too like it loud. He He, think I built it all for you old farts? P.S Observation on humanity! Volume that hurts for one song, a moment later is too low for a favorite song. Derp! ... show more
Reviewed in the United States on January 28, 2026 by Mr Frosty
    • Best 12" sub for the money. Best 12" sub for the money.
Size: 12" - Dual 4 Ohm
Review Image by Joseph Bragg
This Skar audio SDR 12-in D4 wired in parallel to 2 ohms and is 600W RMS and I'm only pushing 350 watts into it and it is so loud it hurts my ears being right behind the driver's seat in my Silverado. It was decently priced and even better when they go on sale. I used to have the IX 12-in D4 wired to 2 ohms as well and this speaker blows the other one out of the water with its deep lows and impressive loudness. Definitely worth giving it a try for a budget subwoofer it performs phenomenally. I can only imagine after the break in period. Definitely worth picking one up or two for that matter depending on your setup configuration. One is definitely plenty for me where I have it located. It shipped really quickly as well and I got it on time with my free shipping Amazon prime. Just remember to break it in respectfully. Skar audio recommends a minimum 24-hour break in. At half to low volume and at half too low power just to break them in properly. I only drive about an hour a day so it won't take me close to 24 days to break mine in but once they're broken you can crank up the wattage and the volume and they will sound amazing. I know my IX12 sounded amazing and over 2 years later still performs well. I put the IX12 in my wife's Kia forte and she loves it and it thumps really hard. My point being is if they're properly broke in they will last as any speaker should if properly broke in and properly powered with clean power. ... show more
Reviewed in the United States on January 8, 2024 Reviewed in the United States on January 8, 2024 by Joseph Bragg
    • Worth every penny
Size: 12" - Dual 4 Ohm
This is one solid well made woofer. Of course it has to be in right box, but it hits low and hard. I had a bandpass box custom built for my truck and the place installed the woofer in box and wired to the amp. He had a speaker wire for each coil, so to have a 2ohm load he had to put both positive together and both negatives together ( monoblock amp ) well he hooked only one speaker wire to the amp. So only one coil was playing with a 4ohm load so my amp was pushing 300watts instead of 600watts. Unbelievable how this thing was hitting. I would have never known better but I had a wild hair jump up my ass and purchased the Alpine R series 12in. So I only played the scar on one coil for about 4 weeks. I’m very surprised the coils were not damaged. I’m sure eventually I would have damaged them but the woofer is still clean and hitting hard. For this price you can’t beat the quality, I think it would be hard to even match power of this woofer. ... show more
Reviewed in the United States on June 24, 2025 by Jerry’s toys
    • Sound quality
Size: 12" - Dual 4 Ohm
Most awesome sound!
Reviewed in the United States on April 26, 2026 by Amazon Customer
    • Sound Great
Size: 12" - Dual 4 Ohm
Well worth the price as it works on lows and intense bass. Ran prior with Skar RP 1200.1l and it blew the subs running at mid capacity. Amazon and Skar Audio took care of me. Now I am pushing four of these with a Hifonics Brutus 3k at a quarter of power and am supremely satisfied. Will purchase for future vehicles. ... show more
Reviewed in the United States on May 3, 2026 by Ramiro O.
    • Highly reccomend
Size: 12" - Dual 4 Ohm
Despite what some people think about skar audio, they are amazing for the price, bump HARD, and have been totally reliable so far. I haven't had any issues with it at all except for it being a little smelly after having it full tilt for a minute (its just because i am severely underpowering it with an 800 watt amp). The sub looks great, and its got some good power to it ... show more
Reviewed in the United States on February 24, 2026 by Jameson Helms
    • skar rips you off
Size: 12" - Dual 4 Ohm
hey guys i like the speakers the quality is fare and for the price i give it a thumbs up . Be aware very aware of the people skar is will straight take your money and not send you your whole order i ordered four 4 subs twice and only received Three 3 they don't care about the customer i have a friend at car toys in spokane washington that will sell you L 7s for a couple bucks cheaper any size pass the word on kyle is badass give him a call i promise you won't be disappointed.!!! ... show more
Reviewed in the United States on November 24, 2025 by James Brittain
    • Break in! If u don't know go slowly
Size: 12" - Dual 4 Ohm
I broke it in for three days! It was defective! No problem they are made by machine! Replacement! Totally different sound wow! My first one had a wobble sound to it! The Replacement wow ! My chest feels the bass! My amp is 2000 watts. Amp at min putting out 600 watts. This speaker is 600 watts! Breaking in one day! I moved up from a kicker to this NO comparison at all! I waited till I got the Replacement to rate it! It takes everything kind of music and enchanting it. I'm old 70 h o be 71 soon! It makes mx old self think I'm back as a teenager! ... show more
Reviewed in the United States on March 13, 2026 by MR.WILLIE BEAR

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