Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Closeout
  3. Car Audio & Electronics Closeout
  4. Car Subwoofers Closeout
  5. 12" Car Subwoofers Closeout
  6. Sundown Audio SW-SLD12D4-2

See all parts that fit your 2017 ATS

Sundown Audio SLD 12″ D4 (Open Box, Great)

600W RMS 12" SLD Series Dual 4-ohm Shallow Car Subwoofer

Sundown Audio
Shop all Sundown Audio
highlight-star-icon

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mount depth: 5.45"
• Sensitivity: 88.3 dB

Learn more about the ls-sld12d4-u8

We apologize

This item has been discontinued

Show me more products from this category
Go to Category

Description

Sundown Audio brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.


Sundown Audio SW-SLD12D4

Sundown's SLD slim subwoofers deliver incredibly high volume through several important upgrades. These include pole-piece channels to reduce air noise and improve cooling, top-plate "slits" for better cooling and less distortion and a magnet shorting ring. Sundown has also secured the spider, motor, and aluminum pole cap with bolts, and added "mini-XL" lead wires for years of reliable service.


Product Details:

  • 12" Dual 4 ohm SLD Series Subwoofer
  • Power Handling:
    • RMS: 600 watts
  • Black Aluminum voice coil for superior heat dissipation
  • 4-layer copper voice coil wire
  • Stitched-on “Mini-XL” tinsel leads to prevent fatigue and failure
  • Solid pole-piece and multi-vent magnetic gap
  • Dual-magnet design for smooth acoustic response
  • Custom tooled cone shape for reduced mechanical noise over high excursion
  • Bolt-through motor design to ensure maximum longevity and ruggedness
  • 2.5" High Temperature Aluminum Voice coil
  • 12 mm Xmax
  • Double Stacked magnet motor structure
  • Resonance Frequency (Fs): 45.142 Hz
  • Sensitivity: 88.3 dB
  • Recommended sealed box volume: 1.0 cubic feet
  • Recommended ported box volume: 1.5 cubic feet
  • Top-mount depth: 5.45"
  • Cutout diameter: 11.125"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

    • Priced Individually

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Sundown Audio SLD 12″ D4 (Open Box, Great) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Sundown Audio SLD 12″ D4 (Open Box, Great) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Sundown Audio SLD 12″ D4 (Open Box, Great) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Sundown Audio SLD 12″ D4 (Open Box, Great) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications
Series
SLD Series
Subwoofer Size
12"
RMS Power Handling
600 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Material
Aluminum
Voice Coil Diameter
2.5"
Sensitivity
88.3 dB
Xmax (millimeters)
12 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Magnet Structure
Double Stacked
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
1.0 cubic feet
Optimum Ported Box Volume
1.5 cubic feet
Top-Mount Depth (Mounting Depth)
5.45"
Cutout Diameter
11.125"
Shallow Mount Installation
Yes
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
45.142 Hz
Equivalent Compliance (Vas)
29.481 liters
Total Speaker Q Value (Qts)
0.487
Electrical Q Value (Qes)
0.619
Electrical Resistance of Voice Coil (Re)
6.85 ohm
Mechanical Q Value (Qms)
2.298
What is in the box?
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details

Manufacturer:

Sundown Audio

Model Number:

SW-SLD12D4-2

Weight:

23.90lbs

Internal SKU:

ls-sld12d4-u8

Internal Product ID:

217221

Customer Ratings & Reviews

Sundown Audio SLD 12″ D4 (Open Box, Great) thumbnail image
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
BBSW127 main

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

(43)

$6.99

List price $14.99

Add to cart
SDTK20 main

NVX SDTK20

20 Square Feet of Sound Damping Material

(123)

$49.99

List price $71.99

Add to cart
RKXTK main

Stinger RKXTK

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

(9)

$155.99

List price $339.00

Add to cart
19405 main

Dynamat Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

(47)

$156.95

List price $187.44

Add to cart
SDRLR1 main

NVX SDRLR1 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

(126)

$10.99

List price $13.99

Add to cart
SDRLR2 main

NVX SDRLR2 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

(19)

$11.99

List price $14.99

Add to cart
BAMMD3 main

Belva BAMMD3

Nine Function Digital Multimeter

(7)

$9.99

List price $29.99

Add to cart
HP2 small

Scosche accuBUDS HP2 Stereo Earbuds In-Ear Headphones (White)

Lightweight accuBUDS Stereo Earphones In-Ear Buds Headphones with Large 13.5mm Full Range Drivers

$9.95

List price $14.99

AC4.15BGY small

Xscorpion AC4.15BGY (Burgundy)-OPEN BOX

40" x 15" Ft Piece of Premium Un-Backed Automotive Trim Carpet

$26.99

List price $49.99

Related Searches

› Sundown Audio › Sundown Audio 12" Car Subwoofers › 12" Car Subwoofers under $300
Save up to 10 different vehicles in your garage
Vehicle
Store Delete

2017 Cadillac ATS

1990 BMW 325i

2003 Chevrolet TrailBlazer EXT

1992 GMC K2500

1966 Buick Riviera

1984 Buick Park Avenue

2008 Volvo XC90

2011 Mitsubishi Lancer

2016 Chevrolet Trax

1996 Jaguar XJS

Vehicle
Store Delete

2016 Can-Am Commander 1000 XT

2016 Can-Am Commander Max 1000 XT

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

Cancel

This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue

Cancel

Shop your 2017 ATS
Why Use a Vehicle Fit Guide?
Change vehicle | Shop without vehicle
Whoa! Slow down. Add your details below!
additional information required
Add vehicle details to confirm fitment
Ignore fitment details
Find stereos and more that work -- fast.

Additional information:

Remove

Can't find your vehicle? Click here and we'll help.

Where to find vehicle info

Go to Fitment

Didn't find your car?

Submit your details and we'll help!
Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
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
Back

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.

Back
Track your order
Call our experts
Support Center
Return & Exchanges
Follow on Instagram Instagram logo
Subscribe on YouTube YouTube logo