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Sundown Audio

Sundown Audio SA-8 V.3 D4 8" 500W RMS Dual 4-Ohm SA Series Subwoofer

  • Based on 126 reviews
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Availability: In Stock.
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Arrives Monday, Feb 16
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Features

  • SA-8 V.3- Sundown Audio 8 inch 500W RMS Dual 4-OhmSeries Subwoofer
  • Specifications:Resistance (Re): 6.0 & 3A9; | Resonance Frequency (Fs): 40.0| Equivalent Volume (Vas): 7.17 L | Electrical Q Factor (Qes): 0.392 | Mechanical Q Factor (Qms): 4.310 | Total Q Factor (Qts): 0.360 | Force Factor (BL): 22.06| Moving Mass (incl. Air Load) (Mms): 126.6 g | Suspension Compliance (Cms): 125 & 3BC;m/N | Sensitivity: 82.711w / 1m
  • Box Recommendations: Sealed Enclosure Suggestion: Not Recommended | Ported Enclosure Suggestion: 0.5 - 0.75 cu. ft.
  • Hz | Displacement: 0.08 cu. ft. | Depth: 6.625|Outside Diameter: 8.375| Cutout: 7.375 in

Brand: Sundown Audio


Speaker Maximum Output Power: 500 Watts


Frequency Response: 40 Hz


Connectivity Technology: wired


Audio Output Mode: Surround


Input Voltage: ‎8 Volts


Mounting Type: ‎Flush Mount


Material: ‎Aluminum


Model Name: ‎SA-8 V.3 D4


Speaker Type: ‎Subwoofer


Special Feature: ‎Bass Boost


Recommended Uses For Product: ‎Volume


Compatible Devices: ‎Smartphone, Tablet, MP3 Player


Subwoofer Diameter: ‎8 Inches


Unit Count: ‎1 Count


Surround Sound Channel Configuration: ‎3.0


Color: ‎Silver


Included Components: ‎Sticker, Subwoofer, Warranty Card


Product Dimensions: ‎8.38"D x 6.62"W x 8.38"H


Impedance: ‎6 Ohms


Is Waterproof: ‎FALSE


Warranty Type: ‎Limited


Number of Items: ‎1


Control Method: ‎Remote


Wireless Communication Technology: ‎Bluetooth


Speaker Size: ‎8 Inches


Power Source: ‎Corded Electric


Woofer Diameter: ‎8 Inches


Tweeter Diameter: ‎1 Inches


Water Resistance Level: ‎Not Water Resistant


Audio Driver Type: ‎Dynamic Driver


Audio Driver Size: ‎8 Inches


Subwoofer Connectivity Technology: ‎Wired


Number Of Circuits: ‎1


Number of Power Levels: ‎1


Series Number: ‎3


Specific Uses For Product: ‎Audio enhancement in home theater, automobile, and music systems


UPC: ‎762108940137


Global Trade Identification Number: ‎37


Manufacturer: ‎Sundown Audio


Shape: ‎Rectangular Prism with Circular Cutout


Set Name: ‎SA Series


Item Weight: ‎25.3 pounds


Item model number: ‎SA-8 V.3 D4


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎SA-8 V.3 D2


Special Features: ‎Bass Boost


Wattage: ‎500 watts


Date First Available: April 22, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Feb 16

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

    • Sound quality đź‘Ś
Good bang for the buck, hits strong with the proper tune and box fitment is great with the box I've chosen
Reviewed in the United States on December 12, 2025 by Abrum
    • Only 8”s
Being a fan of bass, especially loud bass I was not expecting too much from these little guys. The build quality is awesome. For only being 8” subwoofers these are heavier than a lot of 12” subwoofers on the market. I installed two of these Sundowns in a front firing ported box about 1cuft per subwoofer underneath my rear seat in my crew cab Sierra. I powered the subs with a 1500.1 Memphis audio class D Monoblock amplifier. The amp being 1ohm stable I wired the subs parallel/ parallel to 1ohm. I have the gain set to about 3/4 and these speakers are taking the 500rms that they claim with no problem. The speakers can be punchy like a set of 10’s or hit that extremely low bass like 15’s. If you are on the fence about buying these subwoofers don’t be. For the money you can’t beat it. I normally use JL Audio subwoofers but these have met and exceeded my expectations. Just make sure you know what your amp is stable at and buy the right ohm speakers and know how to wire them to meet the criteria of your amp and you’ll be extremely pleased. ... show more
Reviewed in the United States on February 20, 2021 by Amazon Customer
    • Great sound. Perfect for any music and it will hit hard if U want it to
Review Image by Wesley D. Wesley D.
Review Image by Wesley D. Wesley D.
Ok... I researched subs for 3 months trying to decide. I was stuck on Rockford fosgate bc they do have great sound. But then I heard about this little 8”. Ha. Well it ain’t so little. I couldn’t believe how much it weighed. I had a Memphis 12” and this 8” v3 hits lows harder than the Memphis 12” did. The sound quality of this sub is perfect. I only bought one but it’s plenty!! I listen to mostly rap. I paired it with the Rockford prime 500 which actually the birth sheet said 625 watts. Update... I’ve had this about 7 months now. My friends still can’t believe i only have one 8” sub.. I didn’t realize they can hear me coming up the road. I’m still very pleased with this purchase. The fosgate amp is great too. Never gets hot. Perfect for this sub. If u get this sub go ahead and get the LAB slapbox for $149. It’s made just for this sub. U won’t be disappointed. If ur gonna buy it at least make it sound like it’s supposed to. box is important 👍🏼 ... show more
Reviewed in the United States on February 12, 2019 by Wesley D. Wesley D.
    • One year update
Very powerful and held up to constant use. Very heavy keep in mind mounting or maneuvering it.
Reviewed in the United States on February 20, 2025 by David
    • Incredible
I got this installed at a shop nearby my location and within hours I had a single 8" subwoofer rattling the bones of the people in my backseat. It was great until I overpowered it and potentially ruined the integrity of the composition. I regret the decision I made but for the short time I was able to experience what it could offer me was beyond what words can describe. Shoutout to the guy who suggested the LAB slapbox for this specific subwoofer man you know how to choose the right one. Overall experience 10/10 I'd ruin it again. ... show more
Reviewed in the United States on March 23, 2022 by Jaycob Stewart
    • First let me say i have never paid this much ...
First let me say i have never paid this much for a sub!! I am a little frugal However, this Sub is worth every penny... I had A 10" Skar in a ported box i thought it was the bomb. This little 8" by far is a beast and out preforms that 10 & a couple 12" subs iv owned. Sometimes i cant believe thats a single 8" rattling my windows & mirrors. Will say this, get a factory spec box, makes all the difference. I have a 500w Jbl amp pushing it. This 8 could probably take more but i cant. ... show more
Reviewed in the United States on July 2, 2018 by Wayne
    • Great Speaker- The Only Thing The Prevented Me From Giving It 5 Stars Is The Price. It is too expensive
Great Speaker. This little giant can go. I have just one in a box and it really put out. My friends thought I had two ten inch speakers
Reviewed in the United States on November 17, 2016 by Fabulous P.
    • More Bang for your buck
The subwoofers performs flawlesplay it is great and I love the sound that comes out of it it makes my car stereo sound awesome and everybody says man what is that and I tell them and they go wow nice
Reviewed in the United States on January 4, 2023 by Roger

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