Sundown Audio

SUNDOWN AUDIO X Series v.2 15" (1500-watts) -DVC-4OHM

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  • Sundown Audio SUNDOWN AUDIO X Series v.2 15 1500-watts -DVC-4OHM
  • Sundown Audio SUNDOWN AUDIO X Series v.2 15 1500-watts -DVC-4OHM
  • Sundown Audio SUNDOWN AUDIO X Series v.2 15 1500-watts -DVC-4OHM
MSRP: $824.99
Now: $479.99
Was: $629.99
— You save $345.00

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The X v.2 series is the first driver in the Sundown woofer line-up to offer our "ultra-high excursion" suspension and frame designs. The 10, 12, and 15" models feature our custom tooled and patented frames (US Patent Numbers D691596, D691597, and D691598) and the 18" model uses the tried and true 18" 6-spoke with a custom tooled adapter to allow for a full 10" diameter spider. Optionally our custom tooled 18” frame is available for an extra charge (US Patent Number D741841) – this frame utilizes an 11” spider & changes the coil configuration availability changes to D1 & D2.

We mate these new platforms to a triple stacked 220mm (8.66”) diameter motor structure featuring a hyper-extended pole and extreme clearances (allowing up to 4" p-p travel before mechanical bottom). This motor drives a 3" diameter 4-layer CCAW coil wound on a thick aluminum former to incredible levels of excursion. For the v.2 revision we upgraded the coil to a new “black coil” design which handles significantly more heat than the coil form the X v.1 series.

The X v.2 series was designed from the ground-up to become the new standard in the low-frequency / small ported box subwoofer category in this price range. They will work in the same small enclosures that you are used to using for Sundown Audio subwoofers, although, the will tolerate enclosures up to about 50% larger than those if you desire even more low-end extension.

The X v.2 series is really a different kind of woofer due to its incredibly linear suspension. They are designed for the LOWEST level of bass extension possible in a small enclosure while maintaining extremely low levels of distortion.

One of the most obvious changes from the v.1 series is the much larger motor structure (220mm vs. 190mm on the v.1 series). The motor ventilation has also been improved and we also upgraded to the all-new Mega-Roll v.2 surround which is a more linear & more rugged update to our world-famous Mega-Roll v.1 surround design.

Features & Technology:

  • Xmax = 30mm one-way by 70% BL
  • RMS Power = 1500-watts
  • * Vented magnetic gap
  • * Optimized high-velocity pole vent
  • * Innovative high-velocity vented frame spacer ring
  • Black Aluminum 3” voice coil former for superior heat dissipation
  • High Temperature Round-Wire CCAW voice coil with high-temp black adhesive
  • ** The 18” model with optional tooled Sundown Frame uses a 4-Layer Flat Wire / All Aluminum Coil that is ~30% longer
  • Large aluminum faraday ring (Magnet ID)
  • Spring Loaded Terminals
  • Stitched-On Double-XL Tinsel Leads to prevent fatigue and failure
  • Mega-Roll v.2 Surround Technology
  • High strength, custom tooled & patented cast aluminum frame
  • Optimized for small ported & band-pass enclosures

* -- These features combine to create the optimized coil ventilation system.

SpecificationsX 15"D2X 15" D4
RE (ohms) 3.80 ohm 6.1 ohm
FS (Hz) 29.6 hz 29.5 hz
Vas (L) 58.9L 59.5L
Qes 0.40 0.50
Qms 4.65 4.92
Qts 0.37 0.45
Le (mH) 2.53 mH 3.61 mH
BL (NA) 25.6 28.8
Mms (Grams) 366.8 g 365.3 g
Cms (uM/N) 0.08 mm/N 0.08 mm/N
Sens (1w/1m) 87.7 db 86.7 db


X 15"
Sealed N/A
Ported 4.25 ft^3
Displacement 0.22 ft^3
Depth 10.85"
Outside Diameter 10.85"
Cut-Out 13.83"
Recommended Tuning 32hz
Recommended Port Area 68 in^2



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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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20 Reviews

  • 5
    I give these subwoofers Five star ⭐️ ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️

    Posted by corbin stone on Jun 28, 2021

    Loving them! Sundown makes the best subwoofers

  • 5
    V.2 X15 subwoofer

    Posted by natasha esquivel on Jun 13, 2021

    Five star rating is based on the look of the subs, due to the fact I have not installed them yet still waiting for custom enclosure to come in. Once it is here I will install and do a second review! For now love the look of the subs. They are very very heavy don’t be fouled by the picture they are huge!!! Heard nothing but good about these version X subs... also they did not come with a (made in the USA sticker) I thought these were made in USA not china!

  • 5
    X v.2 15 subwoofer

    Posted by natasha esquivel on Jun 13, 2021

    This is based only on the look of the subs do to the fact I haven’t installed because I’m still waiting on my enclosure it’s been over 3 months so hopefully they throw in some extra stuff just cause of the wait! With that being said. I love the look of them they are much larger then any other 15 inch woofer I have owned! Also they say they are made in USA but mine came in saying from China and no USA sticker on basket

  • 5
    X v.2 15s

    Posted by natasha esquivel on Jun 12, 2021

    Love them so far—- This is based on the look of the subs because I haven’t installed them yet because I’m still waiting for my enclosure, which has taken over 3months and still haven’t received it yet!!! Hopefully they throw me some goodies (xs power battery) hint hint.. cus of the horrible wait time that should have been 4-6 weeks!!! Will have a review on them and enclosure once here

  • 5
    x series

    Posted by marquis johnson on May 10, 2021

    best sound quality best subwoofers ive owned the shipping was quick n easy all around happy with my purchase

  • 5

    Posted by Rufus Moore on Apr 10, 2021

    Great product. Better than I thought it would be. I love my subs

  • 5
    A great buy

    Posted by Michael Prince on Oct 19, 2020

    Before owning these subwoofers, I had two memphis mojo fifteens. After the same one failed twice, I decided to go with another brand. I had these speakers in the cart for about two weeks, because I was skeptical about them at first. I did my research, watched many videos on YouTube, and finally decided to roll the dice. Upon the speakers arriving, I knew then I had made a wise decision. The lows are amazing, and it is very windy. Literally shakes everything in my vehicle. I highly recommend these subwoofers. You will not be disappointed.

  • 5
    Power rating

    Posted by Vernon Eley on Nov 28, 2019

    I love the conservative rating on these subs. This way you'll never over-power your investment.

  • 5
    X Series 15-inch subwoofer

    Posted by Brock Fijal on Mar 21, 2019

    It is the best and cleanest speaker I have ever owned. Thank you down 4 sound for the shirt and stickers . That's why U order from down4sound they hook you up. Thank you for all the advice and all the other amps and Subs that I have purchased can't wait to get my wall built. Thank you JP. The pictures of the speaker don't do it justice when you receive it and it's sitting in your living room you're like holy cow finally . I felt pretty special looking at mine when I came to the door.

  • 5
    any basshead will love this!

    Posted by Victor Sr on Jun 03, 2018

    these subs bah bump! 1 15 was rockin out my garage sitting on the floor with 1000 old school soundstream watts which wasnt even moving cone half way. puts out serious clean sounding bass throughout sub freq band. AWESOME! heavy as hell

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