Garage
Shop
Loading...
Filters
filter-icon Filters & Sort

Sundown Audio SA-12 Classic D2 12" (SA12CLD2)

2000W Peak (1000W RMS) 12" SA Classic Series Dual 2-ohm Car Subwoofer (SW-SACL12D2)

SW-SACL12D2 big
Go to item page Right Arrow Icon of Right Arrow

2000W Peak (1000W RMS) 12" SA Classic Series Dual 2-ohm Car Subwoofer (SW-SACL12D2)

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Treated Foam Surround
• Mount depth: 6.5"
• Sensitivity: 83.21 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $407.99
-17% $339.99

In stock

Limited time!

Alpine R2-W12D2

2250W Peak (750W RMS) 12" R2-Series Dual 2-ohm Car Subwoofer

R2-W12D2 big
Go to item page Right Arrow Icon of Right Arrow

2250W Peak (750W RMS) 12" R2-Series Dual 2-ohm Car Subwoofer

• Peak Power: 2250 watts
• RMS Power: 750 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 6.43"
• Sensitivity: 85 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $36.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

6
List price $540.00
Save $180.05
-33% $359.95

In stock

Used from: $323.95

Earthquake Sound DBXi-12D

1500W Peak (500W RMS) 12" Dual 4 Ohm DBXi Series Car Subwoofer

DBXi-12D big
Go to item page Right Arrow Icon of Right Arrow

1500W Peak (500W RMS) 12" Dual 4 Ohm DBXi Series Car Subwoofer

• 1500W Peak
• 500W RMS
• 2" Aluminum Bobbin Voice Coil
• 140 Oz. Double Stacked Magnet
• Sensitivity: 85dB
• Mounting Depth: 6-3/4"

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

10
$373.99

In stock.

Atrend 10SPLDV

Empty Dual 10" SPL Vented Subwoofer Enclosure

10SPLDV big
Go to item page Right Arrow Icon of Right Arrow

Empty Dual 10" SPL Vented Subwoofer Enclosure

• 10" Dual SPL Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 2.7 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

3
List price $229.99
-22% $179.99

Available

Ships in 10-14 days

SSV Works WP-US10

Loaded 300W RMS 10" Universal Subwoofer Enclosure with SSV Works Subwoofer

230-WP-US10 big
Go to item page Right Arrow Icon of Right Arrow

Loaded 300W RMS 10" Universal Subwoofer Enclosure with SSV Works Subwoofer

• Sealed enclosure with 1 10" Subwoofer
• 300 watts RMS (600 watts Peak)
• Includes plug and play wire harness kit
• Dimensions: 10" L x 12.28" H x 14.21" W

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $65.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$649.99

In stock.

• Sealed enclosure with 1 10" Subwoofer
• 300 watts RMS (600 watts Peak)
• Includes plug and play wire harness kit
• Dimensions: 10" L x 12.28" H x 14.21" W

Sony XS-W104GS

1500W Peak (350W RMS) 10" XS Series Single 4-ohm Car Subwoofer

XS-W104GS big
Go to item page Right Arrow Icon of Right Arrow

1500W Peak (350W RMS) 10" XS Series Single 4-ohm Car Subwoofer

• Peak Power: 1500 watts
• RMS Power: 350 watts
• Impedance: Single 4 ohm
• Paper cone with Polypropylene cap
• Rubber surround
• Mount depth: 5-3/8"
• Sensitivity: 86 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $15.80 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $159.99
$158.00

In stock

Only 3 Left!

Sundown Audio SML-8 D4 8" (SML8D4)

800W Peak (400W RMS) 8" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML8D4)

SW-SML8D4 big
Go to item page Right Arrow Icon of Right Arrow

800W Peak (400W RMS) 8" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML8D4)

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• Pressed Foam surround
• Mount depth: 3.9"
• Sensitivity: 82.5 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $203.99
-7% $189.99

In stock

Limited time!

Rockford Fosgate Punch P2 P2D2-8

500W Peak (250W RMS) 8" Punch Series Dual 2-ohm Car Subwoofer

P2D2-8 big
Go to item page Right Arrow Icon of Right Arrow

500W Peak (250W RMS) 8" Punch Series Dual 2-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• Rubber Surround
• Mount depth: 4.76"
• Sensitivity: 83 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $13.50 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

20
List price $149.99
Save $15.00
-10% $134.99

In stock

Used from: $114.74
Limited time!

Kicker L7S152 (44L7S152)

2000W Peak (1000W RMS) 15” Solo-Baric L7S Series Dual 2-ohm Subwoofer

L7S152 big
Go to item page Right Arrow Icon of Right Arrow

2000W Peak (1000W RMS) 15” Solo-Baric L7S Series Dual 2-ohm Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• Injection Molded Polypropylene Cone
• Ribbed Santoprene Surround
• Mount depth: 8 11/16"
• Sensitivity: 88.56 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

11
List price $509.99
Save $126.03
-25% $383.96

In stock

Atrend 10AME

Empty Single 10" Shallow Sealed Subwoofer Enclosure

10AME big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 10" Shallow Sealed Subwoofer Enclosure

• 10" Single Shallow Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Shallow construction and downward firing design
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 0.47 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $79.99
-12% $70.20

In stock

Only 3 Left!

Deaf Bonce Apocalypse DB-SA272 D2

3000W Peak (1500W RMS) 12” Apocalypse Series Dual 2-ohm Car Subwoofer

DB-SA272 D2 big
Go to item page Right Arrow Icon of Right Arrow

3000W Peak (1500W RMS) 12” Apocalypse Series Dual 2-ohm Car Subwoofer

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 7.07"
• Sensitivity: 86.20 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $32.99 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

12
$329.90

In stock

Sundown Audio SA-6.5 SW D4 6.5" (SA65D4)

600W Peak (300W RMS) 6.5" SA Classic Series Dual 4-ohm Car Subwoofer (SW-SA6.5SWD4)

SW-SA6.5SWD4 big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (300W RMS) 6.5" SA Classic Series Dual 4-ohm Car Subwoofer (SW-SA6.5SWD4)

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Paper Cone
• Foam Surround
• Mount depth: 3.79"
• Sensitivity: 81.5 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $167.99
-8% $154.99

In stock

AudioControl SPK-8S4

500W RMS 8" Spike Series Single 4-ohm High-Performance Car Subwoofer

SPK-8S4 big
Go to item page Right Arrow Icon of Right Arrow

500W RMS 8" Spike Series Single 4-ohm High-Performance Car Subwoofer

• RMS Power: 500 watts
• Impedance: Single 4 ohm
• Paper Fiber with Mica Coating Cone
• Rubber Surround
• Mount depth: 4.291"
• Sensitivity: 81.9876 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $17.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $229.00
-22% $179.00

In stock

Only 3 Left!

NVX NE121P

Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.75 Cu. Ft. with Polyfil and NVX Logo

NE121P big
Go to item page Right Arrow Icon of Right Arrow

Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.75 Cu. Ft. with Polyfil and NVX Logo

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.75 cubic feet
• Premium Black Carpet with Black NVX Logo

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
$135.99

In stock

Limited time!

Alpine Status HDZ-W12

2400W Peak (800W RMS) 12" Status Series Dual 4-ohm Car Subwoofer

HDZ-W12 big
Go to item page Right Arrow Icon of Right Arrow

2400W Peak (800W RMS) 12" Status Series Dual 4-ohm Car Subwoofer

• Peak Power: 2400 watts
• RMS Power: 800 watts
• Impedance: Dual 4 ohm
• Pulp/Mica Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 7-3/8"
• Sensitivity: 83.7 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $80.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $1200.00
Save $400.05
-33% $799.95

In stock

Only 2 Left!

Sundown Audio X-15 v.3 D2 15" (X12V3D2)

5000W Peak (2500W RMS) 15" X Series Dual 2-ohm Car Subwoofer (SW-XV315D2)

SW-XV315D2 big
Go to item page Right Arrow Icon of Right Arrow

5000W Peak (2500W RMS) 15" X Series Dual 2-ohm Car Subwoofer (SW-XV315D2)

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Mega Roll V2 Surround
• Mount depth: 11.6"
• Sensitivity: 85.9 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $75.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $983.99
-24% $749.99

In stock

Atrend 13W7SV

Empty Single 13" Vented Enclosure for JL Audio W7/W7AE Series Subwoofers

13W7SV big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 13" Vented Enclosure for JL Audio W7/W7AE Series Subwoofers

• 13" Single Ported Subwoofer Enclosure
• Fits JL Audio W7/W7AE series subwoofers
• 1" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 2.3 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $239.99
-25% $179.99

In stock

Rockford Fosgate Prime R2D2-10

500W Peak (250W RMS) 10" Prime Series Dual 2-ohm Car Subwoofer

R2D2-10 big
Go to item page Right Arrow Icon of Right Arrow

500W Peak (250W RMS) 10" Prime Series Dual 2-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Dual 2 ohm
• Mica Injected Polypropylene - MIPP Cone
• Poly-Foam Surround
• Mount depth: 4.319"
• Sensitivity: 87 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

24
List price $129.99
-15% $109.99

In stock

Used from: $93.49

Cerwin-Vega H12DV4

1950W Peak (650W RMS) 12" HED Series Dual 4-ohm Subwoofer

H12DV4 big
Go to item page Right Arrow Icon of Right Arrow

1950W Peak (650W RMS) 12" HED Series Dual 4-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Impedance: Dual 2 ohm
• Hybrid Polypropylene-Treated Paper cone
• TPE Surround
• Mount depth: 5.96"
• Sensitivity: 85 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $17.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $203.99
-17% $169.99

In stock

Rockford Fosgate Power T1 T1D210

11200W Peak (600W RMS) 10" Power Series Dual 2-ohm Car Subwoofer

T1D210 big
Go to item page Right Arrow Icon of Right Arrow

11200W Peak (600W RMS) 10" Power Series Dual 2-ohm Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Semi-Pressed Paper Cone
• Rubber Surround
• Mount depth: 6.375"
• Sensitivity: 83 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $48.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

8
$479.99

In stock

Used from: $383.99

Items per page: 20 40 60

    Clear all
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    FAQ for Subwoofer and Sub Box Upgrades in 1979 Monarch

    Q: Can I upgrade or change the Subwoofer and Sub Box Upgrades in 1979 Mercury Monarch?

    A: Yes this page includes all the best Subwoofer and Sub Box Upgrades that work in your Monarch.

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

    1982 Porsche 928

    1979 Mercury Monarch

    2022 Audi Q4 e-tron

    1997 Nissan Maxima

    2011 Kia Optima

    1982 Jeep J10

    2011 Acura TSX

    2011 Volkswagen Eos

    2006 Audi A6 Quattro

    2015 Audi S3

    Vehicle
    Store
    Delete

    1994 Harley Davidson FLHT Electra Glide Standard

    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 category 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.