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DS18 EXL-SQ5.25

680W Peak (160W RMS) 5.25" EXL-SQ Series 2-way 3-ohm Coaxial Car Speakers

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680W Peak (160W RMS) 5.25" EXL-SQ Series 2-way 3-ohm Coaxial Car Speakers

• 340 watts Peak Each, 80 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters with neodynium magnets
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 86 dB

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Install kits available for most vehicles

additional information required
Fits select locations in your Firebird.
Add vehicle details to confirm exact location.
$143.95 /pair

In stock

Only 2 Left!

Used from: $100.76
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Kicker KSS369 (51KSS369)

400W Peak (200W RMS) 6x9" KS Series 3-Way 4-ohm Component Speaker System

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400W Peak (200W RMS) 6x9" KS Series 3-Way 4-ohm Component Speaker System

• 200 watts Peak Each, 100 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
List price $429.99
-7% $399.99 /set

In stock

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JL Audio C3-525

300W Peak (150W RMS) 5.25" C3 Series 2-Way 4-ohm Component Speaker System

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300W Peak (150W RMS) 5.25" C3 Series 2-Way 4-ohm Component Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 2-way convertible speakers from component to coaxial
• 1" Silk Soft Dome tweeters with ferrofluid cooling and damping
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Install kits available for most vehicles

additional information required
Fits select locations in your Firebird.
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$529.99 /set

In stock

Used from: $450.49
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Hertz CPX 690

720W Peak (240W RMS) 6x9" Cento Series 3-Way Coaxial 4-ohm Car Speakers

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720W Peak (240W RMS) 6x9" Cento Series 3-Way Coaxial 4-ohm Car Speakers

• 360 watts Peak Each, 120 watts RMS Each
• 1.26" and 0.8" dual Tetolon Dome tweeters
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
3
List price $600.00
-17% $499.99 /pair

In stock

Only 2 Left!

Sony XS-690GS

840W (120W RMS) 6x9“ GS Series 2-way 4-ohm Coaxial Car Speakers

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840W (120W RMS) 6x9“ GS Series 2-way 4-ohm Coaxial Car Speakers

• 420 watts Peak Each, 60 watts RMS Each
• 1" Silk Soft Dome tweeters
• Composite Polypropylene Cone - CPPC cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
List price $169.99
$168.00 /pair

In stock

Continue to cart

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List price $169.99
$168.00
$134.40 with coupon | Price details
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AudioControl EPICPRO69CX

600W Peak (400W RMS) 6x9" EPIC PRO Series 2-Way Pro Audio Coaxial 4-ohm Car Speakers

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600W Peak (400W RMS) 6x9" EPIC PRO Series 2-Way Pro Audio Coaxial 4-ohm Car Speakers

• 300 watts Peak Each, 200 watts RMS Each
• Titanium Bullet loaded horn tweeters
• Stiff Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97.6 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
$209.00 /pair

In stock

Limited time!

Hertz SX 690 NEO.1

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

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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

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
1
List price $650.00
-15% $549.99 /pair

In stock

DS18 PRO-CF69.4NR (Sold Individually)

600W Peak (300W RMS) 6x9" PRO Series Midbass 4-ohm Motorcycle and Powersports Loudspeaker

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600W Peak (300W RMS) 6x9" PRO Series Midbass 4-ohm Motorcycle and Powersports Loudspeaker

• 600 watts Peak Each, 300 watts RMS Each
• Water Resistant Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
$251.95

In stock

Only 3 Left!

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Precision Power (PPI) MAS.522

150W RMS 5.25" MAS Series 2 Way Coaxial 2-ohm Motorcycle Speakers

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150W RMS 5.25" MAS Series 2 Way Coaxial 2-ohm Motorcycle Speakers

• 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

additional information required
Fits select locations in your Firebird.
Add vehicle details to confirm exact location.
1
List price $349.99
-23% $269.99 /pair

In stock

Only 3 Left!

• 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 92 dB

Pioneer TS-A693FH

920W Peak (190W RMS) 6x9" A-Series 2-way 4-ohm Coaxial Speakers

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920W Peak (190W RMS) 6x9" A-Series 2-way 4-ohm Coaxial Speakers

• 460 watts Peak Each, 95 watts RMS Each
• 13/16" PEI (Polyetherimide) Hard Dome Tweeters
• Aramid fiber reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
List price $130.00
-15% $109.99 /pair

In stock

Deaf Bonce Machete MFH-50

200W Peak (100W RMS) 5.25" Machete Series 4-ohm Full Range Car Speakers

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200W Peak (100W RMS) 5.25" Machete Series 4-ohm Full Range Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90.6 dB

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Install kits available for most vehicles

additional information required
Fits select locations in your Firebird.
Add vehicle details to confirm exact location.
$39.90 /pair

In stock

Only 3 Left!

Limited time!

AudioControl A69

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

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

• 100 watts RMS Each
• Silk Dome Tweeters
• Precision-Molded Glass Fiber cone
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
List price $179.00
-11% $159.00 /pair

In stock

Diamond Audio DMD52

160W Peak 5.25" DMD Series 2-way Coaxial Car Speakers

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160W Peak 5.25" DMD Series 2-way Coaxial Car Speakers

• 80 watts Peak Each
• 0.79" Silk Dome Tweeters
• Polypropylene cone material
• Sensitivity: 86 dB

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Install kits available for most vehicles

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Fits select locations in your Firebird.
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List price $119.99
-8% $109.99 /pair

In stock

Only 3 Left!

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List price $119.99
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Hertz CX 130

300W Peak (100W RMS) 5.25" Cento Series 2-Way Coaxial 4-ohm Car Speakers

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300W Peak (100W RMS) 5.25" Cento Series 2-Way Coaxial 4-ohm Car Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 0.9" Tetolon Dome tweeters
• Semi-Pressed paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92.5 dB

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Install kits available for most vehicles

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Fits select locations in your Firebird.
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List price $260.00
$249.99 /pair

In stock

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Kenwood eXcelon KFC-X135

320W Peak (80W RMS) 5.25" eXcelon Series 2 Way Coaxial 4-ohm Car Speakers

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320W Peak (80W RMS) 5.25" eXcelon Series 2 Way Coaxial 4-ohm Car Speakers

• 160 watts Peak Each, 40 watts RMS Each
• 1" Soft Dome Tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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VIP Product Get $11.15 in rewards to spend later

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Install kits available for most vehicles

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Fits select locations in your Firebird.
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List price $180.00
Save $68.50
-38% $111.50 /pair

In stock

Only 2 Left!

Limited time!

Rockford Fosgate Punch P3 P3V2-69

300W Peak (150W RMS) 6x9" Punch P3 Series 3-Way 4-ohm Component Car Speaker System

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300W Peak (150W RMS) 6x9" Punch P3 Series 3-Way 4-ohm Component Car Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Tetolon Inverted Dome Tweeters
• 20-40% Mica reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
List price $755.99
Save $186.00
-25% $569.99 /set

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Kicker PS694 (40PS694)

360W Peak (180W RMS) 6x9” PS Series 2 Way Coaxial 4-ohm Powersports and Motorcycle Speakers

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360W Peak (180W RMS) 6x9” PS Series 2 Way Coaxial 4-ohm Powersports and Motorcycle Speakers

• 180 watts Peak Each, 90 watts RMS Each
• 3/4" Titanium Dome tweeters
• Protective speaker grilles included
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.3 dB
• Mounting Depth: 3-1/4"

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
List price $219.99
Save $60.03
-27% $159.96 /pair

In stock

• 180 watts Peak Each, 90 watts RMS Each
• 3/4" Titanium Dome tweeters
• Protective speaker grilles included
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.3 dB
• Mounting Depth: 3-1/4"

Limited time!

Diamond Audio DE692

300W Peak (150W RMS) 6x9" Diamond Elite Series 2-Way Coaxial 4-ohm Car Speakers

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300W Peak (150W RMS) 6x9" Diamond Elite Series 2-Way Coaxial 4-ohm Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
List price $299.95
-50% $149.99 /pair

In stock

Limited time!

Precision Power (PPI) MAS.524

150W RMS 5.25" MAS Series 2 Way Coaxial 4-ohm Motorcycle Speakers

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150W RMS 5.25" MAS Series 2 Way Coaxial 4-ohm Motorcycle Speakers

• Peak Each, 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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VIP Product Get $27.00 in rewards to spend later

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Install kits available for most vehicles

additional information required
Fits select locations in your Firebird.
Add vehicle details to confirm exact location.
1
List price $349.99
-23% $269.99 /pair

In stock

• Peak Each, 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Limited time!

Precision Power MAS.692HT

800W Peak (400W RMS) 6x9" MAS Series 2-Way Coaxial 2-ohm Horn Loaded Motorcycle Speakers

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800W Peak (400W RMS) 6x9" MAS Series 2-Way Coaxial 2-ohm Horn Loaded Motorcycle Speakers

• 400 watts Peak Each, 200 watts RMS Each
• Titanium Ring Radiator Tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 95 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Firebird
  • Rear Seat Side Panel
List price $679.99
-22% $529.99 /pair

In stock

Only 2 Left!

• 400 watts Peak Each, 200 watts RMS Each
• Titanium Ring Radiator Tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 95 dB

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    FAQ for Speakers in 1990 Firebird

    Q: Can I upgrade or change the Speakers in 1990 Pontiac Firebird?

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

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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