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

1977 Buick Regal

Change vehicle | Remove vehicle

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

Speakers & Speaker Installation for 1977 Buick Regal

Find speakers to upgrade your sound and fit in the factory speaker location for your Regal.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

All car speakers

Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

Rear Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

Dads & Grads Sale

Dads & Grads Sale

Free Gear / Open-Box Deals / Huge Discounts up to 40% off Car / Marine / ATV Audio

Filters
Reset Done
Product Type
Price Range
Speaker Location
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
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.
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".
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.
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.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
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.
A Series (24)
Reference Series (19)
V Series (19)
S Series (16)
HED Series (14)
Prime Series (14)
Punch Series (13)
Cento Series (11)
N-Series (11)
C1 Series (10)
CS Series (10)
X Series (10)
Club Series (9)
PNW Series (9)
Polk DB+ Series (9)
Power Series (9)
Primus Series (9)
Zeus Series (9)
DRVN Series (8)
G-Series (TSG) (8)
PRO Series (8)
PRO-X Series (8)
XED Series (8)
ZXI Series (8)
DMD Series (7)
Elite Series (7)
KS Series (7)
D-Series (6)
Dieci Series (6)
GX Series (6)
Terminator Series (6)
Formula Series (5)
Kappa Series (5)
PS Series (5)
R-Series (5)
Stadium (5)
Stage Series (5)
VEGA Series (5)
C2 Series (4)
GS Series (4)
Mille Pro Series (4)
Premium Series (4)
RS Series (4)
Street Reference Pro (4)
SX Series (4)
Uno Series (4)
CVL Series (3)
DR Series (3)
DS Series (3)
E-Series (3)
EXL Series (3)
MSNEO Series (3)
MX Series (3)
NEO Series (3)
Punch P3 Series (3)
Spike Series (3)
Stage 3 Gen 2 Series (3)
Stage 3 Series (3)
Thunder Series (3)
Altitude Series (2)
BASSREV Series (2)
CF Series (2)
Colossus Classic Series (2)
CX Series (2)
Discus Series (2)
EPIC PRO Series (2)
Focus Series (2)
Gen-X (2)
HED Pro Series (2)
KFC Series (2)
MotorSport Series (2)
MS Series (2)
Performance Series (2)
PRO-SM Series (2)
Punch P1 Series (2)
Punch P2 Series (2)
R Series (2)
Reserve Series (2)
Sport Series (2)
SQ Series (2)
SXE Series (2)
TNT Series (2)
Apex Series (1)
Apocalypse Series (1)
Black Hydra Series (1)
BRS Series (1)
CVPRO Series (1)
CVPX Series (1)
Diamond Elite Series (1)
DXQ Series (1)
eXcelon Series (1)
Godfather Series (1)
HTW Series (1)
MAS Series (1)
MR Series (1)
Prime R1 Series (1)
Pro Audio on Wheels Series (1)
PRO-FR Series (1)
PRO-HY Series (1)
PRO-ZT Series (1)
PX Series (1)
Rage Series (1)
SA Series (1)
SPL Show Series (1)
Stage 1 Series (1)
Stage 2 Gen 2 Series (1)
Stage 2 Series (1)
Stage One Series (1)
Studio Series (1)
VTEK Series (1)
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

Kicker KSC4 (51KSC404) (Open Box, Good)

300W Peak (150W RMS) 4" KS Series 2 Way Coaxial 4-ohm Speakers

51KSC404 big
Go to item page Right Arrow Icon of Right Arrow

Kicker KSC4 (51KSC404) (Open Box, Good)

300W Peak (150W RMS) 4" KS Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1/2" Silk Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
List price $119.99
-50% $59.99 /pair

In stock

Only 1 Left!

Add to Cart

• 150 watts Peak Each, 75 watts RMS Each
• 1/2" Silk Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Limited time!

JL Audio C1-690tx (C1 690tx)

200W RMS 6x9" C1 Series 3 Way Coaxial 4-ohm Car Speakers

C1-690tx big
Go to item page Right Arrow Icon of Right Arrow

JL Audio C1-690tx (C1 690tx)

200W RMS 6x9" C1 Series 3 Way Coaxial 4-ohm Car Speakers

• 60 watts RMS Each
• 1" and 3/4" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90.5 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $23.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
9
$229.99 /pair

In stock

Add to Cart
Used from: $195.49 Like New from: $195.49
See all 14 special offers

Hertz SX 690 NEO.1 (Like New (Open Box))

520W Peak (260W RMS) 6x9" SX Series 3-way 4-ohm Coaxial Car Speakers

SX 690 NEO.1 big
Go to item page Right Arrow Icon of Right Arrow

Hertz SX 690 NEO.1 (Like New (Open Box))

520W Peak (260W RMS) 6x9" SX Series 3-way 4-ohm Coaxial Car Speakers

• 260 watts Peak Each, 130 watts RMS Each
• 1.14" and 1" dual PEI (Polyetherimide) Dome tweeters
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
List price $650.00
-28% $467.49 /pair

In stock

Only 1 Left!

Add to Cart

• 260 watts Peak Each, 130 watts RMS Each
• 1.14" and 1" dual PEI (Polyetherimide) Dome tweeters
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

Limited time!

JL Audio C1-690x

200W RMS 6x9" C1 Series 2 Way Coaxial 4-ohm Car Speakers

C1-690x big
Go to item page Right Arrow Icon of Right Arrow

JL Audio C1-690x

200W RMS 6x9" C1 Series 2 Way Coaxial 4-ohm Car Speakers

• 100 watts RMS Each
• 1" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $18.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
8
$179.99 /pair

In stock

Add to Cart
Used from: $152.99
See all 14 special offers

Crunch CS693

800W Peak (150W RMS) 6x9" CS Series 3-Way Coaxial 4-ohm Car Speakers

CS693 big
Go to item page Right Arrow Icon of Right Arrow

Crunch CS693

800W Peak (150W RMS) 6x9" CS Series 3-Way Coaxial 4-ohm Car Speakers

• 400 watts Peak Each, 75 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
25
List price $49.99
-32% $33.99 /pair

In stock

Add to Cart
See all 14 special offers
Limited time!

Alpine S2-S40

280W Peak (90W RMS) 4" S-Series Hi-Res 2-Way Coaxial 4-ohm Car Speakers

S2-S40 big
Go to item page Right Arrow Icon of Right Arrow

Alpine S2-S40

280W Peak (90W RMS) 4" S-Series Hi-Res 2-Way Coaxial 4-ohm Car Speakers

• 140 watts Peak Each, 45 watts RMS Each
• Hi-Res Audio Certified
• 3/4" Cloth Soft Dome tweeters
• Polypropylene, Glass Fiber and Mica cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $11.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
2
List price $130.00
-15% $109.95 /pair

In stock

Add to Cart
See all 8 special offers
Limited time!

JBL Club 422F (SPKCB422FAM)

210W Peak (70W RMS) 4" Club Series 2 Way Coaxial 3-ohm Speakers

Club 422F big
Go to item page Right Arrow Icon of Right Arrow

JBL Club 422F (SPKCB422FAM)

210W Peak (70W RMS) 4" Club Series 2 Way Coaxial 3-ohm Speakers

• 105 watts Peak Each, 35 watts RMS Each
• Edge-driven Silk Edge Driven Dome Tweeters
• UV-Treated Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
List price $129.95
Save $59.96
-46% $69.99 /pair

In stock

Add to Cart
See all 8 special offers
Limited time!

JL Audio C1-690

120W RMS 6x9" C1 Series 2 Way Component 4-ohm Car Speakers

C1-690 big
Go to item page Right Arrow Icon of Right Arrow

JL Audio C1-690

120W RMS 6x9" C1 Series 2 Way Component 4-ohm Car Speakers

• 60 watts RMS Each
• 1" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $19.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
16
$189.99 /set

In stock

Add to Cart
Used from: $161.49
See all 14 special offers
Limited time!

JBL Stage3 427F (STAGE3427FAM)

300W Peak (60W RMS) 4" Stage3 Series 2-Way Coaxial 3-ohm Car Speakers

Stage3 427F big
Go to item page Right Arrow Icon of Right Arrow

JBL Stage3 427F (STAGE3427FAM)

300W Peak (60W RMS) 4" Stage3 Series 2-Way Coaxial 3-ohm Car Speakers

• 150 watts Peak Each, 30 watts RMS Each
• Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
3
List price $89.95
-22% $69.95 /pair

In stock

Only 1 Left!

Add to Cart
Used from: $48.97
See all 8 special offers

NVX ESP69

480W Peak (160W RMS) 6x9" E-Series 2 Way Coaxial Car Speakers

ESP69 big
Go to item page Right Arrow Icon of Right Arrow

NVX ESP69

480W Peak (160W RMS) 6x9" E-Series 2 Way Coaxial Car Speakers

• 240 watts Peak Each, 80 watts RMS Each
• 1/2" PEI (Polyetherimide) Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
5
List price $59.99
-17% $49.99 /pair

In stock

Add to Cart
Like New from: $42.49
See all 14 special offers

Pioneer TS-G6930F

800W Peak (90W RMS) 6x9" G-Series 3-way 4-ohm Coaxial Car Speakers

TS-G6930F big
Go to item page Right Arrow Icon of Right Arrow

Pioneer TS-G6930F

800W Peak (90W RMS) 6x9" G-Series 3-way 4-ohm Coaxial Car Speakers

• 400 watts Peak Each, 45 watts RMS Each
• 0.43" Dome Tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
14
List price $80.00
-25% $59.99 /pair

In stock

Add to Cart
See all 14 special offers
Limited time!

JVC CS-DR421

440W Peak (70W RMS) 4" DRVN DR Series 2-Way 4-ohm Shallow-Mount Coaxial Car Speakers

CS-DR421 big
Go to item page Right Arrow Icon of Right Arrow

JVC CS-DR421

440W Peak (70W RMS) 4" DRVN DR Series 2-Way 4-ohm Shallow-Mount Coaxial Car Speakers

• 220 watts Peak Each, 35 watts RMS Each
• 1" Polyetherimide Balanced Dome tweeters
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $9.90 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
List price $119.00
-17% $99.00 /pair

In stock

Only 1 Left!

Add to Cart
See all 8 special offers

Cerwin-Vega XED693

700W Peak (90W RMS) 6x9" XED Series 3-Way Coaxial 4-ohm Speakers

XED693 big
Go to item page Right Arrow Icon of Right Arrow

Cerwin-Vega XED693

700W Peak (90W RMS) 6x9" XED Series 3-Way Coaxial 4-ohm Speakers

• 350 watts Peak Each, 45 watts RMS Each
• 2-1/2" Metal Balanced Dome and 3/4" Piezo Metal Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
25
List price $65.99
-17% $54.99 /pair

In stock

Add to Cart
See all 14 special offers
Limited time!

Kicker CSC4 (46CSC44)

300W Peak (100W RMS) 4” CS Series 2 Way Coaxial 4-ohm Speakers

46CSC44 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSC4 (46CSC44)

300W Peak (100W RMS) 4” CS Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Steel mesh speaker grilles included
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
1
List price $84.99
Save 29%
-29% $59.96 /pair

In stock

Add to Cart
Used from: $52.49
See all 6 special offers
Limited time!

Rockford Fosgate Power T1 T1692

400W Peak (200W RMS) 6x9" Power Series 2-way 4-ohm Coaxial Car Speakers

T1692 big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Power T1 T1692

400W Peak (200W RMS) 6x9" Power Series 2-way 4-ohm Coaxial Car Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters
• Polypropylene-Carbon Fiber Hybrid cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $29.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
23
$289.99 /pair

In stock

Only 3 Left!

Add to Cart
Used from: $246.49
See all 14 special offers
Limited time!

Kicker KSS69 (51KSS6904)

300W RMS 6x9" KS Series 2-Way 4-ohm Component Speaker System

51KSS6904 big
Go to item page Right Arrow Icon of Right Arrow

Kicker KSS69 (51KSS6904)

300W RMS 6x9" KS Series 2-Way 4-ohm Component Speaker System

• 150 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Free Speaker Accessory at Checkout!
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

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
2
List price $279.99
-11% $249.99 /set

In stock

Add to Cart
See all 14 special offers

Kicker CSS69 (46CSS694) (Like New (Open Box))

900W Peak (300W RMS) 6x9" CS Series 2 Way Component 4-ohm Speaker System

46CSS694 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSS69 (46CSS694) (Like New (Open Box))

900W Peak (300W RMS) 6x9" CS Series 2 Way Component 4-ohm Speaker System

• 450 watts Peak Each, 150 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
List price $219.99
-23% $169.99 /set

In stock

Only 1 Left!

Add to Cart

• 450 watts Peak Each, 150 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Limited time!

JBL Club 44F (JBLSPKCB44F)

210W Peak (70W RMS) 4" Club Series 2 Way Coaxial 3-ohms Speakers

Club 44F big
Go to item page Right Arrow Icon of Right Arrow

JBL Club 44F (JBLSPKCB44F)

210W Peak (70W RMS) 4" Club Series 2 Way Coaxial 3-ohms Speakers

• 105 watts Peak Each, 35 watts RMS Each
• Silk Edge Driven Dome Tweeters
• UV-Resistant Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $10.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
List price $129.95
-23% $99.95 /pair

In stock

Add to Cart
Used from: $69.97
See all 8 special offers

Kicker CSS69 (46CSS694) (Open Box, Great)

900W Peak (300W RMS) 6x9" CS Series 2 Way Component 4-ohm Speaker System

46CSS694 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSS69 (46CSS694) (Open Box, Great)

900W Peak (300W RMS) 6x9" CS Series 2 Way Component 4-ohm Speaker System

• 450 watts Peak Each, 150 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Rear Deck Corner
List price $219.99
-36% $139.99 /set

In stock

Only 3 Left!

Add to Cart

• 450 watts Peak Each, 150 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Limited time!

JL Audio C2-400x

70W RMS 4" C2 Series 2-Way Coaxial 4-ohm Car Speakers

C2-400X big
Go to item page Right Arrow Icon of Right Arrow

JL Audio C2-400x

70W RMS 4" C2 Series 2-Way Coaxial 4-ohm Car Speakers

• 35 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 84.5 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $19.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
9
$189.99 /pair

In stock

Add to Cart
Used from: $161.49
See all 8 special offers
Prev 1 2 3 4 5 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 Speakers in 1977 Regal

    Q: Can I upgrade or change the Speakers in 1977 Buick Regal?

    A: Yes this page includes all the best Speakers that work in your Regal.

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

    1977 Buick Regal

    2012 Nissan Pathfinder

    2020 Ram 2500

    2019 Nissan Leaf

    1971 Buick GS

    2009 Mazda Tribute

    1992 BMW 525i

    2004 Lexus ES330

    2022 Ford Escape

    2005 Dodge Durango

    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 1977 Regal
    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