Garage
Shop

See all parts that fit your 2003 9-3

Sundown Audio X-18 v.3 D2 18" (X12V3D2)

5000W Peak (2500W RMS) 18" X Series Dual 2-ohm Car Subwoofer (SW-XV318D2)

Sundown Audio
Shop all Sundown Audio
Only 1 Left!
highlight-star-icon

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Mega Roll V2 Surround
• Mount depth: 13.6"
• Sensitivity: 87.6 dB

Learn more about the xv318d2
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $1127.99
Thanks , You Pay:
-25%

$849.99

 with warranty
Starting at $54/mo with

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Dollar Icon
VIP Product Get $85.00 in rewards to spend later
Quantity
In Stock. Only 1 Left!
Brand new

Buy it now


Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Extend logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Hassle-free immediate replacement within minutes!
  • Easy online claims 24/7
  • Covers product breakdowns and failures
Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts

Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

H7653 main

Cerwin-Vega H7653

680W Peak (120W RMS) 6.5" HED Series 3-Way Coaxial 4-ohm Speakers

43
-16.67%

$79.99

List price $95.99

Current Promotions (1 offer)


Get a Free roll of Belva 16 Gauge Speaker Wire. Simply click the "Add Both to Cart" button and you will see your savings at checkout. This offer cannot be combined with any other coupons or offers.

Sundown Audio X-18 v.3 D2 18" (X12V3D2)

100% off


Priced separately $862 98

Promo Savings of $12 99

Total price:

$849 99

Description


Sundown Audio brand icon

Authorized dealer


Sundown Audio X-18 v.3 D2

Designed with an extended pole piece and an incredible four inches of peak-to-peak excursion, the X v.3 is engineered for ultra-deep bass and high power handling. Engineered to set a new standard in the low-frequency/small-ported-box subwoofer category, the X Series can also work in up to a 50% larger enclosure if you desire even more low-end extension.

The X v.3 series differentiates itself with its incredibly linear suspension, ensuring the lowest level of bass extension in a small enclosure while maintaining extremely low levels of distortion. Notably, the v.3 series features a much larger motor structure (220mm vs. 190mm on the v.1 series), improved motor ventilation, and an all-new Mega-Roll v.2 surround, providing a more linear and rugged update to the world-famous Mega-Roll v.1 surround design.


Product Details:

  • 18" Dual 2 ohm X Series Subwoofer
  • Power Handling:
    • Peak: 5000 watts
    • RMS: 2500 watts
  • Pressed Paper Cone
  • Mega Roll V2 Surround
  • Designed with an extended pole piece
  • Features incredible 4" of peak-to-peak excursion
  • Made for low-frequency/small-ported-box subwoofer
  • Can also work in up to a 50% larger enclosure
  • Ensures the lowest level of bass extension in a small enclosure
  • Features improved motor ventilation
  • High Temperature Voice coil
  • 30 mm Xmax
  • Triple Stacked magnet motor structure
  • Resonance Frequency (Fs): 28.21 Hz
  • Sensitivity: 87.6 dB
  • Recommended ported box volume: 7 cubic feet
  • Top-mount depth: 13.6"
  • Cutout diameter: 16.69"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Sundown Audio X-18 v.3 D2 18" (X12V3D2) Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Sundown Audio X-18 v.3 D2 18" (X12V3D2) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Sundown Audio X-18 v.3 D2 18" (X12V3D2) Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Sundown Audio X-18 v.3 D2 18" (X12V3D2) Subwoofers

2 Channel Amp

4 Channel Amp


Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

Club 322F main

JBL Club 322F (SPKCB322FAM)

150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers

1
-27.29%

$79.95

List price $109.95

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99


Best selling similar products

49L7X181 small

Kicker L7X181 (49L7X181)

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

$949.99

List price $1049.99

49L7X182 small

Kicker L7X182 (49L7X182)

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

(1)

$949.99

List price $1049.99

SW-XV318D1 small

Sundown Audio X-18 v.3 D1 18" (X12V3D1)

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Dual 1 ohm
• Pressed Paper Cone
• Mega Roll V2 Surround
• Mount depth: 13.6"
• Sensitivity: 88.6 dB

$949.99

List price $1019.99

Specifications & Details


Subwoofer Specifications
Series
X Series
Subwoofer Size
18"
Peak Power Handling
5000 watts
RMS Power Handling
2500 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
2 ohm
Sensitivity
87.6 dB
Xmax (millimeters)
30 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Pressed Paper
Woofer Surround
Mega Roll V2
Magnet Structure
Triple Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
CTA-2031 Compliant
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Optimum Ported Box Volume
7 cubic feet
Top-Mount Depth (Mounting Depth)
13.6"
Cutout Diameter
16.69"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
28.21 Hz
Equivalent Compliance (Vas)
109.94 liters
Total Speaker Q Value (Qts)
0.54
Electrical Q Value (Qes)
0.66
Electrical Resistance of Voice Coil (Re)
3.2 ohm
Mechanical Q Value (Qms)
3.09
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SW-XV318D2

Weight:

84.40lbs

Internal SKU:

xv318d2

Internal Product ID:

206555

Customer Ratings & Reviews


Sundown Audio X-18 v.3 D2 18

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


SB-T-TACACG3/10TW3 small

JL Audio Stealthbox® SB-T-TACACG3/10TW3

Custom-Fit Loaded 10" Subwoofer Enclosure for select 2015-2023 Tacoma

$1199.99

List price $1199.99

PWSACCCRUISEHD small

JBL Cruise Harley-Davidson Mounting Bolt Kit (PWSACCCRUISEHD)

Harley Davidson Bolt Kit for JBL Cruise Handlebar Speaker Pods

$19.95

List price $29.95

No picture

NVX NSP46 - Like New (Open Box)

300W Peak (100W RMS) 4x6" 2-Way N-Series Coaxial Car Speakers with 20mm Silk Dome Tweeters

(1)

$33.99

List price $49.99

SXV300V1,RZRSYSTEM3 small

MTX Audio 400W 5 Speaker Polaris RZR Audio Package + FREE SiriusXM SX - System 3

Vehicle-Specific Complete Audio Package featuring Bluetooth Receiver, Four Speakers + Subwoofer, and Weatherproof Amplifierselect 2015-2022 vehicles from Polaris

(153)

$1659.65

List price $1789.94

A140BKRQ small

Audiobahn A140BKRQ Circuit Breaker

$17.99

List price $34.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2003 Saab 9-3

2006 Lexus LS430

1997 Ford Taurus

2011 Acura RDX

2015 Ford Explorer

1986 Jeep CJ7

2016 Mazda 6

2004 GMC Envoy

2009 Ford Escape

2009 BMW 528i xDrive

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.