SA v.2 Series Subwoofer

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After 10-years of selling the SA series we upgraded every part that ever failed for any reason for the all-new v2. The result is a much more rugged woofer that will work in basically the same enclosure sizes as the old SA series while also providing less distortion over a broader mechanical excursion window. They will carry a full 1000-watt RMS rating. The 12" prototype finish is black but they will all be chrome on production. Motor boots will also be tooled for production. List of upgrades compared to the v1 SA series: 1) Magnet outer diameter increased from 180mm to 190mm 2) Magnet slugs increased from 25mm to 27mm in height (total 4mm more height) 3) Motor structure fully bolted together with 3x M6 bolts (eliminates the possibility of motor shifting) 4) Top-Plate "Slits" implemented as with the X and Z series. Increased cooling & reduced distortion. 5) Improved gap venting -- more / flared gap vents. 6) Improve pole-vent design -- smoothly flared on both sides. 7) Coil increased from 63.5mm (2.5") to 70mm (2.75") in diameter. Higher thermal capacity. 8) New "U series" style cast-aluminum frame for taller cones (more x-mech both top-side from cone to spider and bottom from spider to top plate) 9) Aluminum cast gasket to bolt-on surround. 10) Aluminum cast vent ring to enhance thermal transfer from motor to the frame. 11) Standard with double "XL" leads and "bolted-on" spider 12) Larger and thicker surround (same tooling as U series). 13) Strongest paper cones we have ever produced... new two-piece mold technique that we will expand to other cones in the future. 14) "Large Flange" dust cap just like our larger woofers. Essentially eliminates dust-cap glue failure. 15) Larger spider diameter on the 12/15" models (the 10" retains the same 188mm spider)... 12" up to ~200mm and 15" up to ~210mm 16) Improved spider material for longer life.



PORTED : 1.0 ft^3 tuned to 35 Hz // F3 of ~30 Hz


SA-12 v.2 : SEALED : 0.75 ft^3 // F3 of ~54 Hz

PORTED : 1.75 ft^3 tuned to 35 Hz // F3 of ~29 Hz


SA-15 v.2" : SEALED : 2.0 ft^3 // F3 of ~46 Hz

PORTED : 3.5 ft^3 tuned to 35 Hz // F3 of ~28 Hz 

SA-18 v.2 Prototype All new SA-18 design. This woofer features a larger motor than the SA-10/12/15 v2 at a full 205mm diameter (vs 190mm) and a 60mm magnet stack (vs 50mm). The top plate is also thicker than the smaller diameter SA v.2 woofers -- all in order to more effectively move the higher mass 18" soft parts. It has a large 234mm diameter spider pack for very high mechanical stroke capacity. It utilizes the same 2.75" coil as the other SA v.2 series for a 1000-watt RMS power rating.


SA-18 v.2 : SEALED : Not Suggested

PORTED : 5.0 ft^3 tuned to 35 Hz // F3 of ~30 Hz

31 Reviews Hide Reviews Show Reviews

  • 5
    SA 12 v2 d2

    Posted by Terry Bentley on Aug 2nd 2020

    First off!! I was a little hesitant, to not just order a brand new pair of subs like usual from Sundown. But Being my experiences with all of my Sundown toys has always surpassed my expectations. and besides I'm only putting them in my semi anyways, replacing 4 older RF HE2 subs so Why not.
    Well!! I'm very glad I did. These look absolutely flawless and sound amazing while doing so. I have tried my best to find a flaw and can't. they definitely get louder than I thought they would. 2 would of been perfect and saved some room. But it's well we'll Worth it. I Absolutely love these! Just buy em!!!! Thank you! Sundown team!

  • 5
    Sa 10 v2

    Posted by Kevin Buckman on Aug 1st 2020

    Great budget subs, my next box will be with 4 ov them

  • 5
    SA V2 12" - Phenomenal Woofer!

    Posted by David on Jul 31st 2020

    I'm not so sure what is b stock about this thing besides maybe the one little blemish on the cone. Definitely fully functional mechanically. This is my first Sundown product and I have always been very conservative with the power I give to my woofers. I tend to baby them. To test the legend behind the original SA I have been pumping 1200 watts to this guy and it eats it up and sounds beautiful! Will definitely be a sundown owner for life! It lives up to the hype!

  • 5

    Posted by Jered on Jul 31st 2020

    Im still playing around with boxes, however this driver seems very capable. Power handling is obviously higher than rated. The only issue i found with my example was a cross threaded bolt for the hard gasket. Once again, im supper happy with Sundown's product performance. The yardsale prices keep these drivers competitive.

  • 5
    Sundown SA v2

    Posted by Marrio on Jul 31st 2020

    One hell of a subwoofer!

  • 5
    SA 18” V.2

    Posted by G on Jul 25th 2020

    Straight up looks new. Sounds new. Plays new. No issues that i can see. Each coil read perfect. Shipping was done professionally with double boxes and a huge styrofoam to protect subwoofer. I will definitely buy more. Wish they had the X line more often...

  • 5
    sav.2 12 d4

    Posted by carl andrews on Jul 24th 2020

    i can't see how or why this was a yard sale item.i think they just sent me a "new woofer" it was double boxed and was never opened from the factory till me.i work for a LTL carrier i guess they may have had a issue with some possible damage in shipping and just called the whole skid damaged. who knows? but my woofer is just as new as any i would have got from a retailer for over 140 bucks less.turns out it sounds great to boot.

  • 5
    SA 12 v2

    Posted by Jacob Shaver on Jul 13th 2020

    Absolutely amazing. You will not be disappointed with these subs!!!!

  • 5
    SA V.2 10in Dual 4ohm

    Posted by Austin on Jul 11th 2020

    Received in what seemed like unopened packaging, foam gasket hadn’t even been placed on the woofer. I free aired it to test before enclosing and everything seemed to work fine. It’s been boxed and running steady for a week now no problems on a 1200rms amp and I haven’t been babying it either. 10/10 and I saved some money! Thanks sundown yard sale!