Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In

1978 Cadillac Eldorado

Change vehicle | Remove vehicle

Universal subwoofers that fit most vehicles, including your 1978 Eldorado.

Overview Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Universal Subwoofers for 1978 Cadillac Eldorado


Filters
Reset Done
Price Range
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.
Punch Series (38)
W3 v3 Series (24)
Power Series (22)
VC Series (22)
Apocalypse Series (20)
CompRT Series (20)
SoloX Series (20)
CompC Series (19)
CompR Series (18)
Y-Series (18)
Z Series (18)
S Series (17)
VEGA Series (17)
VMAX Series (17)
SA Series (16)
E-Series (15)
HED Series (15)
X Series (15)
NEO Series (14)
CompVX Series (13)
35 Series (12)
CompQ Series (12)
CompVR Series (12)
Level 5 Series (12)
Machete Series (12)
N-Series (12)
R2 Series (12)
U Series (12)
W7 Anniversary Edition Series (12)
Prime Series (11)
Solo-Baric L7S Series (11)
Solo-Baric L7T Series (11)
Punch P3 Series (10)
EXL Series (9)
HD Series (9)
M Series (9)
Power T1 Series (9)
Prime R2 Series (9)
Reference Series (9)
TW3 Shallow Mount Series (9)
ZR Series (9)
55 Series (8)
CompVT Series (8)
Diamond Elite Series (8)
IXS Shallow Series (8)
Level 4 Series (8)
Mille Pro Series (8)
Nightshade (NS) Series (8)
SA Classic Series (8)
Solo-Baric L7R Series (8)
W1 v3 Series (8)
XL Series (8)
ZXI Series (8)
A Series (7)
Comp Series (7)
Hifonics Elite Series (7)
Hippo Series (7)
Hooligan Series (7)
Level 3 Series (7)
Level 6 Series (7)
SML Series (7)
SRW Series (7)
W0 v3 Series (7)
EPICX Series (6)
Godfather Series (6)
HCCA Series (6)
HEX Series (6)
R Series (6)
Spike Series (6)
TW1 Series (6)
VFL Comp Series (6)
VS Series (6)
W6 v3 Series (6)
Cento Series (5)
D Series (5)
eXcelon Series (5)
SoloXS L7XS Series (5)
Space Series (5)
Stage Series (5)
Terminator Series (5)
XR Series (5)
75 Series (4)
CVP Series (4)
DMD Series (4)
DMD-SH Series (4)
EXL-X Series (4)
Godzilla Series (4)
GTR Series (4)
Hawk Series (4)
HED Slim Series (4)
Kappa Series (4)
King Series (4)
L Series (4)
N Series (4)
Punch P3 Shallow Mount Series (4)
RS Series (4)
Select Series (4)
Status Series (4)
Stroker Series (4)
SWT Series (4)
T1 Slim Series (4)
Tremor-X Series (4)
TW5 Shallow Mount Series (4)
Type-R Series (4)
Atom Series (3)
Club Series (3)
DB+ Series (3)
Discus Series (3)
EQ Series (3)
Gen-XX (3)
GTX Series (3)
LCS Series (3)
Level 1 Series (3)
Level 2 Series (3)
PRO-X Series (3)
Solo-Baric L7 Series (3)
Summo Series (3)
SWS Series (3)
TITAN Series (3)
Titanium Series (3)
TNT Series (3)
VFL Series (3)
XED Series (3)
Arena Series (2)
Bass Series (2)
BassLine Series (2)
C6 Series (2)
Champion Series (2)
Dieci Series (2)
DX Series (2)
Earthquake DBXI Series (2)
Elite Series (2)
ES Series (2)
Excelon Reference Series (2)
Gen-X (2)
GTS Series (2)
Hannibal Series (2)
HEX PRO Series (2)
HoleeS Series (2)
Magma Series (2)
Mille Legend Series (2)
Polk Audio MM1 Series (2)
Power T2 Series (2)
Power T3 Series (2)
Punch P1 Series (2)
SL Series (2)
SPL Show Series (2)
SQ Series (2)
Stadium Series (2)
Street Reference (2)
Stroker Pro Series (2)
Subzero Series (2)
W7 Series (2)
XFL Series (2)
XMAXX Series (2)
XMAXXX Monster Series (2)
XS-Series (2)
Arena X Series (1)
BOA-N Series (1)
CRW Series (1)
Diamond Shallow Series (1)
GT Series (1)
GTX Series (1)
HF Series (1)
JackHammer Series (1)
M2 Series (1)
M4 Series (1)
M6 Series (1)
MOJO Pro Series (1)
Performance Series (1)
Primus Series (1)
Punch P2 Series (1)
S65 Series (1)
SPL Monster Series (1)
Tarantula T5 Series (1)
TKO Series (1)
UFO Series (1)
Uno Series (1)
W0 v2 Series (1)
XD 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

AudioControl SPC-10S2

600W RMS 10" Space Series Single 2-ohm Shallow Car Subwoofer

SPC-10S2 big
Go to item page Right Arrow Icon of Right Arrow

AudioControl SPC-10S2

600W RMS 10" Space Series Single 2-ohm Shallow Car Subwoofer

• RMS Power: 600 watts
• Impedance: Single 2 ohm
• Fiber Matrix Injection Molded Polypropylene Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 86.09 dB

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

VIP Product Get $20.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $229.00
-9% $209.00

In stock

Add to Cart

DS18 ZR6.4D

600W Peak (300W RMS) 6.5" ZR Series Dual 4-ohm Car Subwoofer

ZR6.4D big
Go to item page Right Arrow Icon of Right Arrow

DS18 ZR6.4D

600W Peak (300W RMS) 6.5" ZR Series Dual 4-ohm Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 3.49"
• Sensitivity: 82 dB

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

VIP Product Get $9.60 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
$95.95

In stock

Add to Cart
NVX - Worth the Envy - Direct to Consumer Car Audio

AudioControl EPIC X8D4

600W Peak (400W RMS) 8" EPICX Series Dual 4-ohm Subwoofer

EPIC X8D4 big
Go to item page Right Arrow Icon of Right Arrow

AudioControl EPIC X8D4

600W Peak (400W RMS) 8" EPICX Series Dual 4-ohm Subwoofer

• Peak Power: 600 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Non-Pressed Paper Cone
• Composite Foam Surround
• Mount depth: 4.1"
• Sensitivity: 84.1 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

$119.00

In stock

Only 1 Left!

Add to Cart
Limited time!

Alpine Status HDZ-W10

2400W Peak (800W RMS) 10" Status Series Dual 4-ohm Car Subwoofer

HDZ-W10 big
Go to item page Right Arrow Icon of Right Arrow

Alpine Status HDZ-W10

2400W Peak (800W RMS) 10" 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: 7-7/16"
• Sensitivity: 82.2 dB

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

VIP Product Get $72.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $1080.00
Save $360.05
-33% $719.95

In stock

Add to Cart

Sundown Audio NS v.6 D2 15" (NSV615D2)

7000W Peak (3500W RMS) 15" Nightshade Series Dual 2-ohm Car Subwoofer (SW-NSV615D2)

SW-NSV615D2 big
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio NS v.6 D2 15" (NSV615D2)

7000W Peak (3500W RMS) 15" Nightshade Series Dual 2-ohm Car Subwoofer (SW-NSV615D2)

• Peak Power: 7500 watts
• RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Sensitivity: 85.84 dB

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

VIP Product Get $105.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $1259.99
-17% $1,049.99

In stock

Only 2 Left!

Add to Cart

Cerwin Vega ST124D

2000W Peak (1000W RMS) 12" Stroker Series Dual 4-ohm Subwoofer

ST124D big
Go to item page Right Arrow Icon of Right Arrow

Cerwin Vega ST124D

2000W Peak (1000W RMS) 12" Stroker Series Dual 4-ohm Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Treated Semi-Pressed Pulped cone
• Treated Foam surround
• Mount depth: 8.1"
• Sensitivity: 84.8 dB

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

VIP Product Get $44.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $527.99
-17% $439.99

In stock

Only 1 Left!

Add to Cart
Limited time!

Kicker CWCS104 (50CWCS104)

500W Peak (250W RMS) 10" CompC Series Single 4-ohm Car Subwoofer

50CWCS104 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CWCS104 (50CWCS104)

500W Peak (250W RMS) 10" CompC Series Single 4-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 125-250 watts
• Impedance: Single 4 ohm
• Injection Molded Polypropylene Cone
• Ribbed Polyurethane Surround
• Mount depth: 5-3/16"
• Sensitivity: 85.9 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 $149.99
Save $46.03
-31% $103.96

In stock

Add to Cart

Deaf Bonce Machete ML-10S D2

600W Peak (300W RMS) 10” Machete Series Dual 2-ohm Car Subwoofer

ML-10S D2 big
Go to item page Right Arrow Icon of Right Arrow

Deaf Bonce Machete ML-10S D2

600W Peak (300W RMS) 10” Machete Series Dual 2-ohm Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 4.57"
• Sensitivity: 85.9 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
$79.90

In stock

Add to Cart

• Peak Power: 600 watts
• RMS Power: 300 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 4.57"
• Sensitivity: 85.9 dB

Alpine RS-W10D2

1800W Peak (600W RMS) 10” R-Series Dual 2-ohm Shallow Car Subwoofer

RS-W10D2 big
Go to item page Right Arrow Icon of Right Arrow

Alpine RS-W10D2

1800W Peak (600W RMS) 10” R-Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 3.25"
• Sensitivity: 79 dB

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

VIP Product Get $70.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $840.00
-17% $699.95

In stock

Add to Cart

Alpine RS-W10D4

1800W Peak (600W RMS) 10” R-Series Dual 4-ohm Shallow Car Subwoofer

RS-W10D4 big
Go to item page Right Arrow Icon of Right Arrow

Alpine RS-W10D4

1800W Peak (600W RMS) 10” R-Series Dual 4-ohm Shallow Car Subwoofer

• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 3.19"
• Sensitivity: 78 dB

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

VIP Product Get $70.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $840.00
-17% $699.95

In stock

Only 3 Left!

Add to Cart

Hertz MPS 300 S4

1000W Peak (500W RMS) 12" Mille Pro Series Single 4-ohm Shallow Car Subwoofer

MPS 300 S4 big
Go to item page Right Arrow Icon of Right Arrow

Hertz MPS 300 S4

1000W Peak (500W RMS) 12" Mille Pro Series Single 4-ohm Shallow Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Single 4 ohm
• Polypropylene Cone material
• Rubber Surround material
• Mount depth: 3.46"
• Sensitivity: 85 dB

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

VIP Product Get $60.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $695.00
-14% $599.99

In stock

Add to Cart

Orion HCCA102

8000W Peak (2000W RMS) 10" HCCA Series Dual 2-ohm Car Subwoofer

HCCA102 big
Go to item page Right Arrow Icon of Right Arrow

Orion HCCA102

8000W Peak (2000W RMS) 10" HCCA Series Dual 2-ohm Car Subwoofer

• Peak Power: 8000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• UV-Resistant Polypropylene Cone
• Nitrile Butadiene Rubber (NBR)-Foam Surround
• Mount depth: 8.425"
• Sensitivity: 86.51 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

16
List price $599.99
-17% $499.95

In stock

Only 2 Left!

Add to Cart

• Peak Power: 8000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• UV-Resistant Polypropylene Cone
• Nitrile Butadiene Rubber (NBR)-Foam Surround
• Mount depth: 8.425"
• Sensitivity: 86.51 dB

Alpine SWT-10S2

1000W Peak (350W RMS) 10" SWT Series Single 2-ohm Shallow Car Subwoofer

SWT-10S2 big
Go to item page Right Arrow Icon of Right Arrow

Alpine SWT-10S2

1000W Peak (350W RMS) 10" SWT Series Single 2-ohm Shallow Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Impedance: Single 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• Polyurethane Surround
• Mount depth: 4-3/16"
• Sensitivity: 84.8 dB

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

VIP Product Get $25.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $300.00
-17% $249.95

In stock

Add to Cart

Kenwood eXcelon XR-W1004

1300W Peak (300W RMS) 10" eXcelon Reference Series Single 4-ohm Car Subwoofer

XR-W1004 big
Go to item page Right Arrow Icon of Right Arrow

Kenwood eXcelon XR-W1004

1300W Peak (300W RMS) 10" eXcelon Reference Series Single 4-ohm Car Subwoofer

• Peak Power: 1300 watts
• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4 13/16"
• Sensitivity: 82 dB

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

VIP Product Get $21.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $270.00
-19% $219.00

In stock

Only 1 Left!

Add to Cart

Hertz MPS 300 S2

1000W Peak (500W RMS) 12" Mille Pro Series Single 2-ohm Shallow Car Subwoofer

MPS 300 S2 big
Go to item page Right Arrow Icon of Right Arrow

Hertz MPS 300 S2

1000W Peak (500W RMS) 12" Mille Pro Series Single 2-ohm Shallow Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Single 2 ohm
• Polypropylene Cone material
• Rubber Surround material
• Mount depth: 3.46"
• Sensitivity: 84.5 dB

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

VIP Product Get $60.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $695.00
-14% $599.99

In stock

Only 3 Left!

Add to Cart

Kicker L7X151 (49L7X151)

2000W RMS 15" SoloX Series Dual 1-ohm Subwoofer

49L7X151 big
Go to item page Right Arrow Icon of Right Arrow

Kicker L7X151 (49L7X151)

2000W RMS 15" SoloX Series Dual 1-ohm Subwoofer

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 11-9/16"

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 $899.99
-11% $799.99

In stock

Add to Cart

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 11-9/16"

Rockford Fosgate Power T1 T1D415

2000W Peak (1000W RMS) 15" Power Series Dual 4-ohm Car Subwoofer

T1D415 big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Power T1 T1D415

2000W Peak (1000W RMS) 15" Power Series Dual 4-ohm Car Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• Santoprene Rubber Surround
• Mount depth: 8.39"
• Sensitivity: 87.5 dB

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

VIP Product Get $85.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

8
$849.99

In stock

Only 1 Left!

Add to Cart
Used from: $722.49

DS18 EXL-XX12.4DHE

4000W Peak (2000W RMS) 12" EXL-X Series Dual 4-ohm Car Subwoofer

EXL-XX12.4DHE big
Go to item page Right Arrow Icon of Right Arrow

DS18 EXL-XX12.4DHE

4000W Peak (2000W RMS) 12" EXL-X Series Dual 4-ohm Car Subwoofer

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 7.87"
• Sensitivity: 87 dB

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

VIP Product Get $54.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
$539.95

In stock

Add to Cart

Sundown Audio U-10 v.2 D2 10" (U10V2D2)

4000W Peak (2000W RMS) 10" U Series Dual 2-ohm Car Subwoofer (SW-UV210D2)

SW-UV210D2 big
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio U-10 v.2 D2 10" (U10V2D2)

4000W Peak (2000W RMS) 10" U Series Dual 2-ohm Car Subwoofer (SW-UV210D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Double-Stitched Surround
• Mount depth: 8.15"
• Sensitivity: 82.95 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 $695.99
-24% $529.99

In stock

Add to Cart

Hifonics Elite 8" (HEW8D4)

1200W Peak (600W RMS) 8" Hifonics Elite Series Dual 4-ohm Subwoofer

HEW8D4 big
Go to item page Right Arrow Icon of Right Arrow

Hifonics Elite 8" (HEW8D4)

1200W Peak (600W RMS) 8" Hifonics Elite Series Dual 4-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Double Stitched Foam Surround
• Mount depth: 5.66"
• Sensitivity: 80 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 $189.00
-11% $169.00

In stock

Only 1 Left!

Add to Cart

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Double Stitched Foam Surround
• Mount depth: 5.66"
• Sensitivity: 80 dB

Limited time!

Kicker L7R102 (45L7R102)

1000W Peak (500W RMS) 10" Solo-Baric L7R Series Dual 2-ohm Subwoofer

L7R102 big
Go to item page Right Arrow Icon of Right Arrow

Kicker L7R102 (45L7R102)

1000W Peak (500W RMS) 10" Solo-Baric L7R Series Dual 2-ohm Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Injection-molded SoloKon Cone
• Ribbed Santoprene Wrap Around Gasketing
• Impedance: Dual 2 ohm
• Mount depth: 6 1/8"
• Sensitivity: 85.9 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

1
List price $259.99
Save $68.03
-26% $191.96

In stock

Add to Cart

DS18 EXL-X12.4D

2500W Peak (1250W RMS) 12" EXL-X Series Dual 4-ohm Car Subwoofer

EXL-X12.4D big
Go to item page Right Arrow Icon of Right Arrow

DS18 EXL-X12.4D

2500W Peak (1250W RMS) 12" EXL-X Series Dual 4-ohm Car Subwoofer

• Peak Power: 2500 watts
• RMS Power: 1250 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 7"
• Sensitivity: 88 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

1
List price $364.95
-18% $299.95

In stock

Only 2 Left!

Add to Cart

DS18 IXS10.4S

1200W Peak (600W RMS) 10" IXS Series Single 4-ohm Shallow Car Subwoofer

IXS10.4S big
Go to item page Right Arrow Icon of Right Arrow

DS18 IXS10.4S

1200W Peak (600W RMS) 10" IXS Series Single 4-ohm Shallow Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Paper Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 3.66"
• Sensitivity: 84 dB

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

VIP Product Get $24.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$239.95

In stock

Add to Cart

Deaf Bonce Machete ML-12S D2

600W Peak (300W RMS) 12” Machete Series Dual 2-ohm Car Subwoofer

ML-12S D2 big
Go to item page Right Arrow Icon of Right Arrow

Deaf Bonce Machete ML-12S D2

600W Peak (300W RMS) 12” Machete Series Dual 2-ohm Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 5.06"
• Sensitivity: 88.90 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

$84.90

In stock

Only 3 Left!

Add to Cart

JBL CLUB 102SL (JBLSUBCB102SL)

1050W Peak (350W RMS) 10" Club Series Single 2-or 4-ohm Shallow Car Subwoofer

CLUB 102SL big
Go to item page Right Arrow Icon of Right Arrow

JBL CLUB 102SL (JBLSUBCB102SL)

1050W Peak (350W RMS) 10" Club Series Single 2-or 4-ohm Shallow Car Subwoofer

• Peak Power: 1050 watts
• RMS Power: 350 watts
• Impedance: Single 2 or 4 ohm
• Aluminum cone
• Rubber surround
• Mount depth: 3-1/4"
• Sensitivity: 81 dB

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

VIP Product Get $25.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $279.95
-11% $249.95

In stock

Add to Cart

AudioControl SPC-12S4

600W RMS 12" Space Series Single 4-ohm Shallow Car Subwoofer

SPC-12S4 big
Go to item page Right Arrow Icon of Right Arrow

AudioControl SPC-12S4

600W RMS 12" Space Series Single 4-ohm Shallow Car Subwoofer

• RMS Power: 600 watts
• Impedance: Single 4 ohm
• Fiber Matrix Injection Molded Polypropylene Cone
• Rubber Surround
• Mount depth: 3.94"
• Sensitivity: 87.3024 dB

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

VIP Product Get $23.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $259.00
-8% $239.00

In stock

Only 2 Left!

Add to Cart

Sundown Audio E10 v.4 D2 10" (E10V4D2)

1500W Peak (750W RMS) 10" E Series Dual 2-ohm Car Subwoofer (SW-EV410D2)

SW-EV410D2 big
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio E10 v.4 D2 10" (E10V4D2)

1500W Peak (750W RMS) 10" E Series Dual 2-ohm Car Subwoofer (SW-EV410D2)

• Peak Power: 1500 watts
• RMS Power: 750 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Pressed Foam Surround
• Mount depth: 5.625"
• Sensitivity: 83.6 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 $269.99
-17% $224.99

In stock

Add to Cart

American Bass XFL 10" (XFL-1044)

2000W Peak (1000W RMS) 10" XFL Series Dual 4-ohm Car Subwoofer

XFL-1044 big
Go to item page Right Arrow Icon of Right Arrow

American Bass XFL 10" (XFL-1044)

2000W Peak (1000W RMS) 10" XFL Series Dual 4-ohm Car Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• Foam surround
• Mount depth: 7.38"
• Sensitivity: 82.7 dB

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

VIP Product Get $23.86 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
List price $337.39
-29% $238.57

In stock.

Add to Cart

Rockford Fosgate Power T2 T2S1-16

5000W Peak (2500W RMS) 16" Power Series Single 1-ohm Car Subwoofer

T2S1-16 big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Power T2 T2S1-16

5000W Peak (2500W RMS) 16" Power Series Single 1-ohm Car Subwoofer

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Single 1 ohm
• Glass Fiber Cone
• Injection molded foam Surround
• Mount depth: 10.47"
• Sensitivity: 89 dB

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

VIP Product Get $130.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

3
$1,299.99

Available

Ships in 10-14 days

Add to Cart
Used from: $1,104.99

Hertz SS 15 D2

2400W Peak (1200W RMS) 15" SPL Show Series Dual 2-ohm Car Subwoofer

SS 15 D2 big
Go to item page Right Arrow Icon of Right Arrow

Hertz SS 15 D2

2400W Peak (1200W RMS) 15" SPL Show Series Dual 2-ohm Car Subwoofer

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 2 ohm
• Non-Pressed Paper cone
• Foam surround
• Mount depth: 7.4"

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

VIP Product Get $50.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $580.00
-14% $499.99

In stock

Only 1 Left!

Add to Cart

Deaf Bonce Machete MF-10S D4

1600W Peak (800W RMS) 10” Machete Series Dual 4-ohm Car Subwoofer

MF-10S D4 big
Go to item page Right Arrow Icon of Right Arrow

Deaf Bonce Machete MF-10S D4

1600W Peak (800W RMS) 10” Machete Series Dual 4-ohm Car Subwoofer

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 5.63"
• Sensitivity: 84.1 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

$139.90

In stock

Only 2 Left!

Add to Cart

American Bass HD 8" (HD-822)

800W Peak (400W RMS) 8" HD Series Dual 2-ohm Subwoofer

HD-822 big
Go to item page Right Arrow Icon of Right Arrow

American Bass HD 8" (HD-822)

800W Peak (400W RMS) 8" HD Series Dual 2-ohm Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 2 ohm
• Non-Pressed Paper Cone
• Foam Surround
• Mount depth: 6.14"
• Sensitivity: 82.2 dB

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

VIP Product Get $18.14 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $289.08
-37% $181.44

Available

Ships in 10-14 days

Add to Cart

DS18 SRW8.4D

300W Peak (150W RMS) 8" SRW Series Dual 4-ohm Shallow Car Subwoofer

SRW8.4D big
Go to item page Right Arrow Icon of Right Arrow

DS18 SRW8.4D

300W Peak (150W RMS) 8" SRW Series Dual 4-ohm Shallow Car Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 4 ohm
• Paper Cone
• Rubber Surround
• Mount depth: 2.95"
• Sensitivity: 86 dB

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

VIP Product Get $11.20 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$111.95

In stock

Only 2 Left!

Add to Cart
Used from: $78.37
Lowest price in 30 days

Kicker CWRT672 (48CWRT672) - Pair

300W Peak (150W RMS) 6.75” CompRT Series Dual 2-ohm Shallow Subwoofer

48CWRT672_2 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CWRT672 (48CWRT672) - Pair

300W Peak (150W RMS) 6.75” CompRT Series Dual 2-ohm Shallow Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 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

1
List price $299.98
-31% $207.92

In stock

Add to Cart

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 dB

Lowest price in 30 days

Kicker CWRT674 (48CWRT674) - Pair

300W Peak (150W RMS) 6.75” CompRT Series Dual 4-ohm Shallow Subwoofer

48CWRT674_2 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CWRT674 (48CWRT674) - Pair

300W Peak (150W RMS) 6.75” CompRT Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 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

3
List price $299.98
-31% $207.92

In stock

Only 3 Left!

Add to Cart

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 dB

Pioneer TS-A30S4

1400W Peak (400W RMS) 12" A-Series Single 4-ohm Car Subwoofer

TS-A30S4 big
Go to item page Right Arrow Icon of Right Arrow

Pioneer TS-A30S4

1400W Peak (400W RMS) 12" A-Series Single 4-ohm Car Subwoofer

• Peak Power: 1400 watts
• RMS Power: 400 watts
• Impedance: Single 4 ohm
• Injection Molded Polypropylene Cone
• Rubber Surround
• Mount depth: 5-3/8"
• 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

1
List price $115.00
-13% $99.99

In stock

Add to Cart
Used from: $69.99

Sundown Audio E15 v.4 D4 15" (E15V4D4)

1500W Peak (750W RMS) 15" E Series Dual 4-ohm Car Subwoofer (SW-EV415D4)

SW-EV415D4 big
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio E15 v.4 D4 15" (E15V4D4)

1500W Peak (750W RMS) 15" E Series Dual 4-ohm Car Subwoofer (SW-EV415D4)

• Peak Power: 1500 watts
• RMS Power: 750 watts
• Impedance: Dual 4 ohm
• Pressed Paper Cone
• Pressed Foam Surround
• Mount depth: 7.25"
• Sensitivity: 87.4 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 $311.99
-17% $259.99

In stock

Add to Cart

Kicker CVR152 (52CVR154)

1400W Peak (700W RMS) 15" CompVR Series Dual 4-ohm Subwoofer

52CVR154 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CVR152 (52CVR154)

1400W Peak (700W RMS) 15" CompVR Series Dual 4-ohm Subwoofer

• Peak Power: 1400 watts
• RMS Power: 700 watts
• Impedance: Dual 4 ohm
• Injection Molded Polypropylene Cone
• Rubber Surround
• Mount depth: 8-3/16"
• Sensitivity: 89.2 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 $299.99
-10% $269.99

In stock

Only 2 Left!

Add to Cart

Cerwin-Vega H10DV4

1650W Peak (550W RMS) 10" HED Series Dual 4-ohm Subwoofer

H10DV4 big
Go to item page Right Arrow Icon of Right Arrow

Cerwin-Vega H10DV4

1650W Peak (550W RMS) 10" HED Series Dual 4-ohm Subwoofer

• Peak Power: 1650 watts
• RMS Power: 550 watts
• Impedance: Dual 4 ohm
• Hybrid Polypropylene-Treated Paper cone
• TPE Surround
• Mount depth: 5.41"
• Sensitivity: 83 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
-17% $139.99

In stock

Only 3 Left!

Add to Cart

PRV Audio RS8-SUBD4

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

RS8-SUBD4 big
Go to item page Right Arrow Icon of Right Arrow

PRV Audio RS8-SUBD4

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

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• High Roll Foam surround
• Mount depth: 4.96"
• Sensitivity: 82 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 $174.89
-20% $139.91

In stock

Only 2 Left!

Add to Cart

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• High Roll Foam surround
• Mount depth: 4.96"
• Sensitivity: 82 dB

NVX - Worth the Envy - Direct to Consumer Car Audio
Prev 7 8 9 10 11 Next

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 Universal Subwoofers in 1978 Eldorado

    Q: Can I upgrade or change the Universal Subwoofers in 1978 Cadillac Eldorado?

    A: Yes this page includes all the best Universal Subwoofers that work in your Eldorado.

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

    2024 Toyota Corolla

    1996 Mazda B2300

    1978 Cadillac Eldorado

    2006 Ford Explorer

    2004 Aston Martin DB7

    2022 Audi SQ5

    2018 Audi S5 Sportback

    2005 Cadillac DeVille

    1996 Oldsmobile Aurora

    2020 Lincoln Aviator

    Vehicle
    Store     Delete

    1999 Harley Davidson FXSTB Night Train

    Vehicle
    Store     Delete

    2013 Can-Am Commander 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 category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 1978 Eldorado
    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.
    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