Garage
Shop

See all parts that fit your 2019 Crosstrek

Sundown Audio NS v.6 D1 18" (NSV618D1)

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

Sundown Audio
Shop all Sundown Audio
highlight-star-icon

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Sensitivity: 87.47 dB

Learn more about the nsv618d1
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $1319.99
Thanks , You Pay:
-17%

$1099.99

 with warranty
Starting at $69/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 $110.00 in rewards to spend later
Quantity
In Stock
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...
72-8104 main

Metra 72-8104

Install New Speakers in select 1990-2024 vehicles from Toyota, Subaru, Mitsubishi

87
-20.01%

$11.99

List price $14.99

72-8110 main

Metra 72-8110

Install New Speakers and Tweeters in select 2003-2025 vehicles from Subaru, Toyota, Scion

8

Infinity REF-6532ex (REF6532EXAM)

330W Peak (110W RMS) 6.5" Reference Series 2 Way Coaxial 3-ohm Speakers

6
-38.47%

$79.99

List price $130.00

Club 9632 main

JBL Club 9632 (SPKCB9632AM)

510W Peak (170W RMS) 6x9" Club Series 3-way 3-ohm Coaxial Car Speaker

3
-20.59%

$134.95

List price $169.95

Reference 9632IX main

Infinity Reference 9632ix (REF-9632IX)

600W Peak (200W RMS) 6x9" Reference Series 2-Way Coaxial 3-ohm Car Speakers

2
-17.65%

$139.95

List price $169.95

Limited time!
TS-D69C main

Pioneer TS-D69C

660W Peak (220W RMS) 6x9" D Series 2 Way Component 4-ohm Speakers

-41.15%

$153.00

List price $260.00

Metra 95-8908HG

Double DIN Stereo Dash Kit for select 2017-2023 Impreza and Crosstrek

1
-11.54%

$45.99

List price $51.99

JBL Club 620F (SPKCB620FAM)

330W Peak (110W RMS) 6.5" Club Series 2-way 3-ohm Shallow Mount Coaxial Car Speakers

2
-38.48%

$79.95

List price $129.95

JBL GX9638 (JBLGX9638AM)

600W Peak (200W RMS) 6x9" GX Series 3 Way Coaxial 2.3-ohm Speakers with Dual Tweeters

16
-10.01%

$89.95

List price $99.95

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 NS v.6 D1 18" (NSV618D1)

100% off


Priced separately $1,112 98

Promo Savings of $12 99

Total price:

$1,099 99

Description


Sundown Audio brand icon

Authorized dealer


Sundown Audio NS v.6 D1 18"

The Nightshade 3,000-watt Neodymium sub is engineered to deliver incredibly powerful low end, with an extremely linear excursion and next-level thermal management. It features an eight-layer voice coil for excellent power handling and an extended shorting ring to minimize distortion and deliver a smooth, highly accurate sound at extreme SPL levels.

Thermal control is optimized with a cast aluminum cooling ring, outer fin array and aluminum vent ring to actively pull heat away from the entire voice coil gap. The subwoofer also incorporates a unique air exchange system for active cooling, enhancing reliability during extended use. With a Mega Roll V2 surround for linear cone movement and class-leading Xmax, the Nightshade is the premier high-performance Neodymium subwoofer in the category.


Product Details:

  • 18" Dual 1 ohm Nightshade (NS) Series Subwoofer
  • Power Handling:
    • Peak: 7000 watts
    • RMS: 3500 watts
  • Polypropylene Cone
  • Mega Roll V2 Surround
  • Custom tooled basket to prevent flexing at high power
  • Custom-tooled ultra-linear spider packs for consistent resistance
  • Extended shorting ring to reduce distortion from inductance changes
  • Cast aluminum cooling ring to draw heat away from voice coil
  • Unique air exchanging system forces hot air out and cool air in
  • Aluminum vent ring to enhance airflow through the motor
  • Eight-layer voice coil for increased surface area
  • 35 mm Xmax
  • Double Stacked Neodymium magnet motor structure
  • Resonance Frequency (Fs): 28.63 Hz
  • Sensitivity: 87.47 dB
  • Recommended ported box volume: 7 cubic feet
  • Top-mount depth: 16.3"
  • Cutout diameter: 16.69"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually


Loading...
DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

3
-19.05%

$339.99

List price $420.00

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

123
-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

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

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

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
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!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

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


Best selling similar products

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

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

SW-XV318D2 small

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

• 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

$949.99

List price $1019.99

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

VFLCOMP-1811 small

American Bass VFL Comp Signature 18" (VFLCOMP-1811)

• Peak Power: 10000 watts
• RMS Power: 5000 watts
• Impedance: Dual 1 ohm
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 11"

$1002.36

List price $1618.44

VFLCOMP-1822 small

American Bass VFL Comp Signature 18" (VFLCOMP-1822)

• Peak Power: 10000 watts
• RMS Power: 5000 watts
• Impedance: Dual 2 ohm
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 11"

$1002.36

List price $1618.44

SW-M18D1 small

Sundown Audio M-18 D1 18" (M18D1)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 14.05"
• Sensitivity: 85.83 dB

(3)

$699.99

List price $839.99

ZV718D2 small

Sundown Audio Z-18 v.7 D2 18" (Z18V7D2)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Treated Paper Cone
• Treated Foam Surround
• Sensitivity: 91.07 dB

$1469.99

List price $1679.99

SW-SAV218D4 small

Sundown Audio SA-18 v.2 D4 18" (SA18V2D4)

• Peak Power: 2500 watts
• RMS Power: 1250 watts
• Impedance: Dual 4 ohm
• Competition Grade Paper cone
• Foam surround
• Mount depth: 10.125"
• Sensitivity: 90.7 dB

$499.99

List price $599.99

M18D2 small

Sundown Audio M-18 D2 18" (M18D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Treated Paper Cone
• Mega Roll V2 Surround
• Mount depth: 14.05"
• Sensitivity: 86.10 dB

(1)

$699.99

List price $839.99

Specifications & Details


Subwoofer Specifications
Series
Nightshade (NS) Series
Subwoofer Size
18"
Peak Power Handling
7000 watts
RMS Power Handling
3500 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
1 ohm
Sensitivity
87.47 dB
Xmax (millimeters)
35 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene
Woofer Surround
Mega Roll V2
Magnet Structure
Double Stacked
Magnet Type
Neodymium
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)
16.3"
Cutout Diameter
16.69"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
28.63 Hz
Equivalent Compliance (Vas)
78.93 liters
Total Speaker Q Value (Qts)
0.45
Electrical Q Value (Qes)
0.5
Electrical Resistance of Voice Coil (Re)
1.81 ohm
Mechanical Q Value (Qms)
5.21
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-NSV618D1

Weight:

79.00lbs

Internal SKU:

nsv618d1

Internal Product ID:

206577

Customer Ratings & Reviews


Sundown Audio NS v.6 D1 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


KAC-5001PS small

Kenwood KAC-5001PS OPEN BOX COMPLETE

500W RMS Class D 1-Channel Monoblock Performance Series Car Power Amplifier

$109.99

List price $299.99

Related Searches


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

2019 Subaru Crosstrek

2024 Toyota Corolla

1992 Mazda 626

2005 Suzuki Forenza

2013 Toyota RAV4

2017 Toyota Camry

2012 Hyundai Sonata

2017 Alfa Romeo 4C

1994 Toyota 4Runner

2001 Toyota Solara

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.