Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Car Audio & Electronics
  3. Car Subwoofers

Car Subwoofers for your 2004 525i

Find the best car subwoofers and sub boxes to enhance your car audio system. We're the #1 subwoofer experts since 2000. Boost your bass with our selection of component subwoofers, subwoofer boxes, subwoofers with amplifier packages, and subwoofer installation accessories. Explore our selection and find the best options for a component subwoofer or two, and find loaded, sealed, ported, and bandpass enclosures, as well as complete subwoofer bass packages.

Your Vehicle

close
Checkmark Icon
2004 525i
Product results for your vehicle – confirm details to verify fitment.
Update vehicle | Remove vehicle | Vehicle store

Top sellers

Filters
Reset Done
Show products that do not fit
Product Type
Price Range
Product Fitment Type
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
S Series (44)
CompR Series (40)
CompRT Series (40)
W3 v3 Series (40)
CompC Series (37)
Prime Series (31)
CompVR Series (28)
Punch Series (28)
CompVX Series (27)
VC Series (26)
M2 Series (25)
Prime R2 Series (25)
HED Series (24)
R2 Series (23)
CompQ Series (22)
E-Series (20)
VEGA Series (20)
VMAX Series (20)
W1 v3 Series (20)
Comp Series (19)
Power Series (19)
REVO Series (19)
X Series (19)
Y-Series (19)
CompVT Series (18)
M1 Series (18)
Solo-Baric L7T Series (17)
SoloX Series (17)
W0 v3 Series (17)
HMS Series (16)
Reference Series (16)
TW3 Shallow Mount Series (16)
U Series (16)
VS Series (16)
35 Series (15)
BT Series (15)
M6 Series (15)
Power T1 Series (15)
W6 v3 Series (15)
DMD Series (14)
NEO Series (14)
SA Series (14)
Status Series (14)
Z Series (14)
Zero Series (14)
Apocalypse Series (13)
MW Series (13)
Solo-Baric L7S Series (13)
Stage Series (13)
Type-R Series (13)
Level 5 Series (12)
W7 Anniversary Edition Series (12)
55 Series (11)
SML Series (11)
T1 Slim Series (11)
Terminator Series (11)
W7 Series (11)
ZR Series (11)
Club Series (10)
DES Series (10)
SA Classic Series (10)
Solo-Baric L7R Series (10)
XED Series (10)
ZXI Series (10)
Bass Series (9)
EPICX Series (9)
EXL Series (9)
IXS Shallow Series (9)
M Series (9)
Mille Pro Series (9)
N Series (9)
Spike Series (9)
A Series (8)
Diamond Elite Series (8)
Level 4 Series (8)
Machete Series (8)
N-Series (8)
Nightshade (NS) Series (8)
Punch P3 Series (8)
R Series (8)
TW1 Series (8)
XL Series (8)
BB Series (7)
D Series (7)
Gen-X (7)
Hifonics Elite Series (7)
Hooligan Series (7)
KM Subwoofer Series (7)
Level 3 Series (7)
Space Series (7)
SRW Series (7)
Cento Series (6)
HD Series (6)
HEX Series (6)
Kappa Series (6)
LCS Series (6)
Level 6 Series (6)
PS Series (6)
Punch P3 Shallow Mount Series (6)
SQ Series (6)
SWT Series (6)
TW5 Shallow Mount Series (6)
VFL Comp Series (6)
75 Series (5)
BassLine Series (5)
EXL-X Series (5)
HCCA Series (5)
Hippo Series (5)
KMF Subwoofer Series (5)
L Series (5)
NXL Series (5)
Punch P1 Series (5)
Road Thunder Series (5)
Solo-Baric L7 Series (5)
SoloXS L7XS Series (5)
XR Series (5)
BX Series (4)
Club Marine Series (4)
Elite Series (4)
Excelon Reference Series (4)
eXcelon Series (4)
Godfather Series (4)
Godzilla Series (4)
GT Series (4)
GTR Series (4)
HED Slim Series (4)
M3 Series (4)
M7 Series (4)
Primus Series (4)
Signature Series 3i (4)
TB Series (4)
Tremor-X Series (4)
TS Series (4)
Arena X Series (3)
Atom Series (3)
BassPro Go Series (3)
CVP Series (3)
DB+ Series (3)
Discus Series (3)
DMD-SH Series (3)
EQ Series (3)
Gen-XX (3)
Ghost Series (3)
Hideaway Series (3)
King Series (3)
KM Series (3)
Level 1 Series (3)
MotorSport Series (3)
PRO-X Series (3)
Punch P2 Series (3)
RECON Series (3)
Select Series (3)
StowAway Series (3)
Stroker Series (3)
Summo Series (3)
SWS Series (3)
Titanium Series (3)
TNT Series (3)
V Series (3)
Arena Series (2)
BassPro Series (2)
C6 Series (2)
Champion Series (2)
DBX Series (2)
Dieci Series (2)
Earthquake DBXI Series (2)
GTS Series (2)
GTX Series (2)
GTX Series (2)
Hannibal Series (2)
Hawk Series (2)
HEX PRO Series (2)
HoleeS Series (2)
Hydro Series (2)
Level 2 Series (2)
M3 8 Series (2)
Magma Series (2)
MicroSub Series (2)
Mille Legend Series (2)
OptiSound Series (2)
Polk Audio MM1 Series (2)
Power T3 Series (2)
R-Series (2)
REVO XXX Series (2)
RPM Series (2)
RS Series (2)
Sea Series (2)
SPL Show Series (2)
Stadium Series (2)
Stage Marine Series (2)
Stealth AS Series (2)
Street Reference (2)
Stroker Pro Series (2)
Subzero Series (2)
TITAN Series (2)
VFL Series (2)
XMAXX Series (2)
XMAXXX Monster Series (2)
XS-Series (2)
7 Series (1)
BassLink Series (1)
BASSREV Series (1)
Black Air Series (1)
BOA-N Series (1)
CRW Series (1)
CX Series (1)
DBA Series (1)
Diamond Shallow Series (1)
DRVN Series (1)
DST Series (1)
DX Series (1)
ExtremeSub Series (1)
Fuse Series (1)
HF Series (1)
JackHammer Series (1)
M4 Series (1)
Magnum Series (1)
MOJO Pro Series (1)
MXA Series (1)
P1 Series (1)
Power T2 Series (1)
PRO Series (1)
PWE Series (1)
S65 Series (1)
SL Series (1)
SPL Monster Series (1)
Stadium Marine Series (1)
Tarantula T5 Series (1)
TKO Series (1)
UFO Series (1)
VPAS Series (1)
W0 v2 Series (1)
WET Series (1)
XD Series (1)
XFL Series (1)
XO Series (1)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Top-Mount Depth (Mounting Depth)
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Condition
Availability
filter-icon Filters & Sort

NVX NE121S w/ Sundown Audio SAV312D4

Single 12" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.0 Cu. Ft. with Polyfil and NVX Logo w/ 3000W Peak (1500W RMS) 12" SA Series Dual 4-ohm Subwoofer

NE121S_SAV312D4 big
Go to item page Right Arrow Icon of Right Arrow

NVX NE121S w/ Sundown Audio SAV312D4

Single 12" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.0 Cu. Ft. with Polyfil and NVX Logo w/ 3000W Peak (1500W RMS) 12" SA Series Dual 4-ohm Subwoofer

• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.00 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

1
List price $615.98
-19% $501.98

In stock

Add to Cart

• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.00 cubic feet
• Premium Black Carpet with Black NVX Logo

(2) JL Audio 12W0v3-4 Subwoofers

Pair of 300W 12" W0v3 Series Single 4 Ohm Subwoofers

12W0v3-4,12W0v3-4 big
Go to item page Right Arrow Icon of Right Arrow

(2) JL Audio 12W0v3-4 Subwoofers

Pair of 300W 12" W0v3 Series Single 4 Ohm Subwoofers

• 2 Subs
• 1200W Peak
• 600W RMS
• Mineral-Filled, Polypropylene Cone Woofer
• DMA Optimized Motor System
• Elevated Frame Cooling
• Lead Wire Woven Into Spider

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

60
$319.98

In stock

Add to Cart

• 2 Subs
• 1200W Peak
• 600W RMS
• Mineral-Filled, Polypropylene Cone Woofer
• DMA Optimized Motor System
• Elevated Frame Cooling
• Lead Wire Woven Into Spider

JL Audio 12TW3-D4 (Open Box, Great)

400W RMS 12" TW3 Series Dual 4-ohm Shallow Subwoofer

12TW3-D4 big
Go to item page Right Arrow Icon of Right Arrow

JL Audio 12TW3-D4 (Open Box, Great)

400W RMS 12" TW3 Series Dual 4-ohm Shallow Subwoofer

• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 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

20
List price $569.99
-15% $484.49

In stock

Add to Cart

• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 dB

NVX NE151S w/ Kicker 50CVX154 (Sold Individually)

Single 15" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.1 Cu. Ft. with Polyfil and NVX Logo w/ 2000W Peak (1000W RMS) 15" CompVX Series Dual 4-ohms Subwoofer

NE151S_50CVX154 big
Go to item page Right Arrow Icon of Right Arrow

NVX NE151S w/ Kicker 50CVX154 (Sold Individually)

Single 15" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.1 Cu. Ft. with Polyfil and NVX Logo w/ 2000W Peak (1000W RMS) 15" CompVX Series Dual 4-ohms Subwoofer

15" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.10 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

List price $567.98
-12% $501.98

In stock

Only 2 Left!

Add to Cart

15" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.10 cubic feet
• Premium Black Carpet with Black NVX Logo

NVX NE121S w/ Sundown Audio SAV312D2

Single 12" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.0 Cu. Ft. with Polyfil and NVX Logo w/ 3000W Peak (1500W RMS) 12" SA Series Dual 2-ohm Subwoofer

NE121S_SAV312D2 big
Go to item page Right Arrow Icon of Right Arrow

NVX NE121S w/ Sundown Audio SAV312D2

Single 12" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.0 Cu. Ft. with Polyfil and NVX Logo w/ 3000W Peak (1500W RMS) 12" SA Series Dual 2-ohm Subwoofer

• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.00 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
List price $615.98
-19% $501.98

In stock

Add to Cart

• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.00 cubic feet
• Premium Black Carpet with Black NVX Logo

JL Audio 12W3V34 - Open Box, Great

500W RMS 12" W3v3 Series Single 4-Ohm Subwoofer

12W3v3-4 big
Go to item page Right Arrow Icon of Right Arrow

JL Audio 12W3V34 - Open Box, Great

500W RMS 12" W3v3 Series Single 4-Ohm Subwoofer

• Sensitivity: 87.15 dB
• Mounting depth: 6.65 "
• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

72
List price $469.99
-22% $365.51

In stock

Add to Cart

• Sensitivity: 87.15 dB
• Mounting depth: 6.65 "
• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor

Limited time!

Belva BMSS10RW with VADM2

10" Shallow Marine Subwoofer With Multicolor RGB Lights + Class D 2-Channel Marine Amplifier

(2)BMSS10RW, VADM2 big
Go to item page Right Arrow Icon of Right Arrow

Belva BMSS10RW with VADM2

10" Shallow Marine Subwoofer With Multicolor RGB Lights + Class D 2-Channel Marine Amplifier

• Two 10" Dual 4-ohm Subwoofers
• RGB Lights with Remote
• Waterproof Polypropolene Cone
• Marine Certified 2-Channel Micro Class D Amplifier
• 3-Way System Protection
• Extremely Small Footprint

Dads & Grads Sale! Save 15% at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

17
List price $439.97
-29% $310.22

In stock

Add to Cart

• Two 10" Dual 4-ohm Subwoofers
• RGB Lights with Remote
• Waterproof Polypropolene Cone
• Marine Certified 2-Channel Micro Class D Amplifier
• 3-Way System Protection
• Extremely Small Footprint

NVX NE151S w/ Kicker 50CVX152 (Sold Individually)

Single 15" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.1 Cu. Ft. with Polyfil and NVX Logo w/ 2000W Peak (1000W RMS) 15" CompVX Series Dual 2-ohms Subwoofer

NE151S_50CVX152 big
Go to item page Right Arrow Icon of Right Arrow

NVX NE151S w/ Kicker 50CVX152 (Sold Individually)

Single 15" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.1 Cu. Ft. with Polyfil and NVX Logo w/ 2000W Peak (1000W RMS) 15" CompVX Series Dual 2-ohms Subwoofer

15" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.10 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

List price $567.98
-12% $501.98

In stock

Only 1 Left!

Add to Cart

15" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.10 cubic feet
• Premium Black Carpet with Black NVX Logo

Lowest price in 30 days

NVX QB12SPA with Free BAK82BL Amp Kit

1200W MAX (350W RMS) Single 12" Amplified Ported Loaded Subwoofer Enclosure with Remote Bass Knob + with 8 Gauge Premium (CCA) Complete 2-Channel Amplifier Wiring Kit

QB12SPA_BAK82BL big
Go to item page Right Arrow Icon of Right Arrow

NVX QB12SPA with Free BAK82BL Amp Kit

1200W MAX (350W RMS) Single 12" Amplified Ported Loaded Subwoofer Enclosure with Remote Bass Knob + with 8 Gauge Premium (CCA) Complete 2-Channel Amplifier Wiring Kit

• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes Amp Kit

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

35
List price $349.97
-43% $199.99

In stock

Add to Cart

• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes Amp Kit

JL Audio 12W6v3-D4 (Open Box, Great)

600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer

12W6v3-D4 big
Go to item page Right Arrow Icon of Right Arrow

JL Audio 12W6v3-D4 (Open Box, Great)

600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer


• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 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 $949.99
-30% $664.99

In stock.

Add to Cart


• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

Lowest price in 30 days

NVX QB10SPA with Free BAK82BL Amp Kit

1200W MAX (350W RMS) Single 10" Amplified Ported Loaded Subwoofer Enclosure with 8 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit

QB10SPA_BAK82BL big
Go to item page Right Arrow Icon of Right Arrow

NVX QB10SPA with Free BAK82BL Amp Kit

1200W MAX (350W RMS) Single 10" Amplified Ported Loaded Subwoofer Enclosure with 8 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit

• 10" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes Amp Kit

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

35
List price $325.97
-45% $179.99

In stock

Add to Cart

• 10" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes Amp Kit

NVX Audio Upgrade Kit – QBSTA with 6.5" & 6x9" Speakers

900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box w/ Remote Bass Knob, 6.5" and 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

QBSTA_65_69_STG1VKIT big
Go to item page Right Arrow Icon of Right Arrow

NVX Audio Upgrade Kit – QBSTA with 6.5" & 6x9" Speakers

900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box w/ Remote Bass Knob, 6.5" and 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Co-axial Speaker and Damping Kits

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

267
List price $592.43
-32% $401.43

In stock

Add to Cart

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Co-axial Speaker and Damping Kits

JL Audio 10W0v3-4 (Open Box, Great)

300W RMS 10" W0v3 Series Single 4-ohm Car Subwoofer

10W0v3-4 big
Go to item page Right Arrow Icon of Right Arrow

JL Audio 10W0v3-4 (Open Box, Great)

300W RMS 10" W0v3 Series Single 4-ohm Car Subwoofer

• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Mount depth: 4.90"
• Sensitivity: 84.07 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

68
List price $139.99
-15% $118.99

In stock

Add to Cart

• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Mount depth: 4.90"
• Sensitivity: 84.07 dB

Lowest price in 30 days

Kicker CWRT84 (48CWRT84) - Pair

600W Peak (300W RMS) 8" CompRT Series Dual 4-ohm Shallow Car Subwoofer

48CWRT84_2 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CWRT84 (48CWRT84) - Pair

600W Peak (300W RMS) 8" CompRT Series Dual 4-ohm Shallow Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 2-11/16"
• Sensitivity: 81.8 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

4
List price $419.98
-28% $303.92

In stock

Add to Cart

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 2-11/16"
• Sensitivity: 81.8 dB

Lowest price in 30 days

Kicker CWRT82 (48CWRT82) - Pair

600W Peak (300W RMS) 8" CompRT Series Dual 2-ohm Shallow Car Subwoofer

48CWRT82_2 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CWRT82 (48CWRT82) - Pair

600W Peak (300W RMS) 8" CompRT Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 2 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 2-11/16"
• Sensitivity: 81.8 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

2
List price $419.98
-28% $303.92

In stock

Only 3 Left!

Add to Cart

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 2 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 2-11/16"
• Sensitivity: 81.8 dB

Lowest price in 30 days

Kicker CWR82 (48CWR82) - Pair

600W Peak (300W RMS) 8” CompRT Series Dual 2-ohm Subwoofer

48CWR82_2 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CWR82 (48CWR82) - Pair

600W Peak (300W RMS) 8” CompRT Series Dual 2-ohm Subwoofer

• Peak Power: 600 watts
• RMS Power: 150-300 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 4 1/8"
• Sensitivity: 82.1 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

4
List price $279.98
-31% $191.92

In stock

Add to Cart

• Peak Power: 600 watts
• RMS Power: 150-300 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 4 1/8"
• Sensitivity: 82.1 dB

(2) KICKER 43DC122 12" Subwoofers + Kicker Monoblock Amplifier and Wiring Kit

1200W 12" Comp Series Bass Package

BAK82,46CXA4001T,43DC122 big
Go to item page Right Arrow Icon of Right Arrow

(2) KICKER 43DC122 12" Subwoofers + Kicker Monoblock Amplifier and Wiring Kit

1200W 12" Comp Series Bass Package

• 600W Peak
• 300W RMS
• 2 Ohm Final Impedance
• SoloKon Cone
• Polyfoam Ribbed Surround
• Monogrammed Carbon Fiber Front
• Tough Black Carpeting
• 3/4" MDF Construction

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

111
List price $629.97
-16% $529.98

In stock

Add to Cart

• 600W Peak
• 300W RMS
• 2 Ohm Final Impedance
• SoloKon Cone
• Polyfoam Ribbed Surround
• Monogrammed Carbon Fiber Front
• Tough Black Carpeting
• 3/4" MDF Construction

NVX YSW154 + VAD17001 + XKIT42

1600W Peak (800W RMS) Y-Series 15" Car Subwoofer + Monoblock Car/Marine/Powersports Amplifier with Bass Remote + Complete 2-Channel Amplifier Wiring Kit w/ RCA for Amplifiers

YSW154_VAD17001_XKIT42 big
Go to item page Right Arrow Icon of Right Arrow

NVX YSW154 + VAD17001 + XKIT42

1600W Peak (800W RMS) Y-Series 15" Car Subwoofer + Monoblock Car/Marine/Powersports Amplifier with Bass Remote + Complete 2-Channel Amplifier Wiring Kit w/ RCA for Amplifiers

• Two 15" YSW154 Y-Series 800W RMS Subwoofers
• 3400W Peak (1700W RMS) Class D VAD17001 Monoblock Amplifier
• XKIT42 Complete 4 AWG Amplifier Wiring Kit
• 1-year Warranty from the Original Purchase Date

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

162
List price $815.96
-23% $629.96

In stock

Only 3 Left!

Add to Cart

• Two 15" YSW154 Y-Series 800W RMS Subwoofers
• 3400W Peak (1700W RMS) Class D VAD17001 Monoblock Amplifier
• XKIT42 Complete 4 AWG Amplifier Wiring Kit
• 1-year Warranty from the Original Purchase Date

NVX NE101S w/ Rockford Fosgate M2D2-10S-G2

Single 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.65 Cu. Ft. with Polyfil and NVX Logo w/10" M2 Series Dual 2-ohm Sealed Marine Subwoofer with RGB LED Lighting

NE101S_M2D210SG2 big
Go to item page Right Arrow Icon of Right Arrow

NVX NE101S w/ Rockford Fosgate M2D2-10S-G2

Single 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.65 Cu. Ft. with Polyfil and NVX Logo w/10" M2 Series Dual 2-ohm Sealed Marine Subwoofer with RGB LED Lighting

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .65 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

1
List price $611.98
-19% $495.98

In stock

Only 1 Left!

Add to Cart

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .65 cubic feet
• Premium Black Carpet with Black NVX Logo

NVX NE101S w/ Rockford Fosgate M2D2-10SB-G2

Single 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.65 Cu. Ft. with Polyfil and NVX Logo w/ 10" M2 Series Dual 2-ohm Sealed Marine Subwoofer with RGB LED Lighting

NE101S_M2D210SBG2 big
Go to item page Right Arrow Icon of Right Arrow

NVX NE101S w/ Rockford Fosgate M2D2-10SB-G2

Single 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.65 Cu. Ft. with Polyfil and NVX Logo w/ 10" M2 Series Dual 2-ohm Sealed Marine Subwoofer with RGB LED Lighting

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .65 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

1
List price $611.98
-19% $495.98

In stock

Only 1 Left!

Add to Cart

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .65 cubic feet
• Premium Black Carpet with Black NVX Logo

Prev 71 72 73 74 75 Next

Items per page: 20

    Clear all

    FAQ Frequently asked questions in Car Subwoofers

    A car subwoofer is a specialized speaker designed to reproduce low-frequency bass sounds. It enhances the audio system by delivering deep and powerful bass that standard car speakers cannot produce. Subwoofers are essential for experiencing the full range of frequencies in music and enhancing the overall audio quality. They add depth and impact to the sound, creating a more immersive and enjoyable listening experience. Whether you enjoy rock, hip-hop, or electronic music, a car subwoofer ensures that you can feel the music as well as hear it, adding a whole new dimension to your car audio system.
    Choosing the right car subwoofer involves considering factors such as the size of your vehicle, available space, power handling capabilities, and personal audio preferences. The most common subwoofer sizes for cars are 8-inch, 10-inch, 12-inch, and 15-inch. Smaller subwoofers are suitable for compact cars with limited space, while larger ones provide more bass output for larger vehicles or enthusiasts seeking a more robust bass experience. Additionally, consider the subwoofer's power handling (RMS and peak power) and impedance to match it with your car amplifier. If you're unsure about which subwoofer to choose, consult with a car audio professional who can recommend the best option based on your vehicle and audio preferences.
    While some car audio enthusiasts may have the knowledge and experience to install a car subwoofer themselves, professional installation is generally recommended. Installing a subwoofer involves more than just connecting wires; it requires proper placement, enclosure design, and tuning to achieve optimal sound quality and performance. A professional installer has the expertise and tools to ensure that the subwoofer is installed correctly, reducing the risk of damage to the vehicle and audio equipment. Additionally, they can help integrate the subwoofer seamlessly into your car's interior and fine-tune the audio system for the best possible sound. Investing in professional installation guarantees that your car subwoofer performs at its best and provides a satisfying bass experience.
    A powered car subwoofer, also known as an active subwoofer, has a built-in amplifier, whereas a passive subwoofer requires an external amplifier to power it. The advantage of a powered subwoofer is its simplicity; it can be easily connected to the car's audio system without the need for a separate amplifier. This makes powered subwoofers a popular choice for those looking to add bass to their car audio system without extensive modifications. On the other hand, passive subwoofers offer more flexibility for audiophiles who want to customize their audio setup. They allow for the use of external amplifiers, giving users greater control over their audio system's performance. The choice between powered and passive subwoofers depends on your preferences and the level of customization you desire for your car audio setup.
    Yes, using multiple subwoofers in your car audio system is possible and can lead to improved bass performance. Multiple subwoofers can help distribute bass more evenly throughout the vehicle, reducing peaks and nulls in bass response. This can result in smoother and more consistent bass across different seating positions. Additionally, using multiple subwoofers can increase overall bass output, allowing for a more impactful and immersive listening experience. When using multiple subwoofers, it's essential to properly match them with the car's amplifier and consider enclosure designs that complement each subwoofer's characteristics. Integrating multiple subwoofers may require more complex installation and tuning, so consulting with a car audio professional is advisable to achieve the best results.

    All About

    Car Subwoofers

    If you're on the hunt for the best quality car subwoofers to elevate your audio experience, look no further. Explore our extensive collection now and discover the perfect subwoofer that will bring new life to your car's sound system.

    Car subwoofers are the heartbeat of any audio system, adding depth and power to your music that standard speakers alone cannot replicate. These specialized speakers are designed to handle low-frequency sounds, commonly referred to as bass. By reproducing these low notes accurately, car subwoofers enrich the audio experience, providing a full-bodied, immersive sound that you can feel.

    One of the key advantages of having car subwoofers is their ability to enhance the overall sound quality. By taking on the responsibility of reproducing bass frequencies, subwoofers relieve the main speakers of this task, allowing them to focus on delivering crisp and clear mid and high-range sounds. The result is a well-balanced and dynamic audio experience that can transform your daily commute into a concert-like journey.

    Beyond music, car subwoofers also enhance the enjoyment of movies, audiobooks, and podcasts. Whether you're a music enthusiast, a movie buff, or simply someone who appreciates high-quality audio, adding a subwoofer to your car's audio system will undoubtedly elevate your entertainment experience on the road.

    At Sonic Electronix, we take pride in offering a diverse range of top-tier car subwoofers from leading brands in the industry. Our team of audio experts is dedicated to assisting you in finding the best car subwoofer that aligns with your audio preferences and vehicle specifications. Whether you're seeking bone-rattling bass or a smooth, refined sound, we have the perfect options to meet your audio aspirations.

    For personalized guidance and expert assistance, don't hesitate to reach out to our knowledgeable staff at 1-502-200-8010. Our audio specialists are ready to help you create a custom car audio setup that perfectly complements your driving style and audio preferences.

    Sonic Electronix Learning Center: Differences in Subwoofer Sizes

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

    2004 Nissan Pathfinder Armada

    2016 BMW 3 Series

    1966 BMW 2002

    1984 Dodge Conquest

    2004 BMW 525i

    1979 Buick Electra

    2024 Audi A4 Allroad

    2010 Lincoln MKT

    1983 Nissan Maxima

    2004 Chevrolet Blazer

    Vehicle
    Store     Delete

    2003 Harley Davidson FXSTD/I Softail Deuce

    2016 Harley Davidson FLS Softail Slim

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

    Cancel

    Shop your 2004 525i
    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