Sundown Audio

SUNDOWN AUDIO SA Series v.3 8 inch (500-watts)-DVC-4OHM

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  • Sundown Audio SUNDOWN AUDIO SA Series v.3 8 500-watts-DVC-4OHM
  • Sundown Audio SUNDOWN AUDIO SA Series v.3 8 500-watts-DVC-4OHM
  • Sundown Audio SUNDOWN AUDIO SA Series v.3 8 500-watts-DVC-4OHM
MSRP: $299.99
— You save $50.00


Sundown Audio 8 inch SA Series V3 D4 Subwoofer:

The  Sundown Audio SA 8 v.3 represents the pinnacle of low distortion ported box 8-inch subwoofer technology. Every piece of the SA-8 v.3 has been custom-tooled with the utmost performance and lowest distortion in mind. We started with a proprietary FEA optimized motor design made just for the SA-8 v.3 which features double faraday rings just like its bigger brothers. This motor is mated to a custom tooled and patent-pending frame which allows for a larger spider and superior clearances to nearly any other 8" woofer on the market today. The spider itself was custom tooled to achieve a very even compliance curve and also features double, tied-down tinsel leads to handle incredible amounts of power. The  Sundown SA 8 v.3 also features a full 16mm of Klippel verified one-way linear excursion and mechanical capacity in excess of double the linear limits to ensure that mechanical failures are nearly impossible.

The standard Sundown SA 8 v.3 features a 4-layer copper voice coil for the most possible low-end extension. We do offer SPL models with lighter coils and even "extreme SPL" models with harder spider packs and other impedance configurations (these must be custom-built). 

Sundown Audio SA 8 D4 500 WATT SUBWOOFER

  • Sundown Audio SA-8 V.3 D2 8" 500W RMS Dual 2-Ohm SA Series Subwoofer Specs:
    • Power Handling:
      • RMS Power = 500-watts
    • Voice Coil: Dual 4 ohm
    • Vented magnetic gap featuring sixteen chamfered gap vents
    • Solid Pole piece with chamfered edges for increased air-powered voice coil cooling
    • High-velocity under-spider frame vents
    • Black Aluminum 2” voice coil former for superior heat dissipation
    • High-Temperature copper voice coil wire
    • Large Magnet ID aluminum faraday ring
    • Spring Loaded Terminals
    • Stitched-On “XL” Tinsel Leads to prevent fatigue and failure
    • High strength & patented cast aluminum frame
    • Optimized for small, ported enclosures
    • Xmax = 16mm one-way by 70% BL
    • Cut-out Diameter: 7-3/8"
    • Gasket OD: 8-3/8"
    • Mounting Depth: 6-5/8"
    • Recommended Ported Enclosure: 0.5 - 0.75 ft^3 @ 35hz

Sundown Audio SAv.3 8 D4 TS Specs 

T/S SPECS   SAv3 8″ D4
RE (Ohms)   6.0
FS (Hz)   40.0
VAS (L)   7.17
Qes   0.392
Qms   4.31
Qts   0.36
Le (mH)   3.32
BL (NA)   22.06
Mms (Grams)   126.6
Cms (uM/N)   125
Sens (dB @ 1w/1m)   82.71

Sundown Audio SAv.3 8 Enclosure Specs 

Sealed Enclosure 0.3 cu ft
Ported Enclosure 0.65 cu ft
Recommended Tuning 35Hz
Recommended Port Area 9 sq in
Displacement 0.08 cu ft
Depth 6.625″
Outside Diameter 8.375″
Cut-Out 7.375″


Check out all the Sundown Audio SA 8's:
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Warranty Information

Warranty Information

Sundown Audio requires us to send customers with equipment problems directly to them for all warranty and non-warranty claims. Please follow their proceedures..


Sundown Audio RMA form:

Sundown Audio Product Warranty Information:


Sundown Audio - Hours of Operation

Monday 9am - 5pm EST
Tuesday 9am - 5pm EST
Wednesday 9am - 5pm EST
Thursday 9am - 5pm EST
Friday 9am - 5pm EST
Saturday Closed
Sunday Closed
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4 Reviews

  • 5

    You'll love them

    Posted by Nicholas geiger on Sep 28, 2021

    Okay so I had two of these SAv3 8's. Put them in the right box meaning built to Sundowns specs at .65 cubic feet per one and they will pound for an 8,especially on the lows. I had a little bit of extra money to spend so I decided to buy two more from down4sound. I think I hit a sweet spot. So I have 4 of them now in a 3 cubic ft box in the back of my extended cab f350 and I feel like I'm at a concert every time I turn on my stereo. They will go as loud as you want and it does an awesome job playing in a full range of frequencies in all types of music. I feel like it's Christmas morning every time I think about going anywhere because I know I'm gonna get to listen to these awesome subs! D4s got them to me quickly. I think they took 3 days after I ordered them and I was hooking them up. Not to mention, d4s has cheaper prices for these than anyone so there is no sense in price shopping. Thanks a lot d4s . You have a lifetime customer in me and I'm telling everyone I know!

  • 5


    Posted by Jasmin Mujic on Oct 29, 2018

    This little guy is a beast and I only have the sundown 600 powering it it sounds great in the D4S custom box

  • 5

    these way better then the skar audio in my book

    Posted by Joseph Moore on Jun 05, 2018

    Well I had the skar audio vvx d48s 400rms and blow them up with in a years time them upgrades to the skar audio zvx d48s 900rms and they wasn't much better then the old ones didn't blow them but they couldn't handle what i was putting to them so I sold them and bough these d48s and I have them at 1ohm load and they handle way more then the skar audio ever did love them amp is a deaf bounce amp 1500.1

  • 5

    pre Install

    Posted by Derek Young on Mar 30, 2018

    These are the highest quality subs I've ever put my hands on! Couldn't be happier with the shipping and fast response times thanks everyone at Down4Sound!!!

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