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1990 Porsche 911

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Overview Upgrade your Stereo 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 1990 Porsche 911

Find speakers to upgrade your sound and fit in the factory speaker location for your 911.  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 Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

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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.
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Hertz CX 130 (2-Pairs, 4-Total)

600W Peak (200W RMS) 5.25" Cento Series 2-Way Coaxial Car Speakers (2-Pairs)

CX130_2 big
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Hertz CX 130 (2-Pairs, 4-Total)

600W Peak (200W RMS) 5.25" Cento Series 2-Way Coaxial Car Speakers (2-Pairs)

• 150 watts Peak Each, 50 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• cone material
• Impedance: 4 ohm
• Sensitivity: 92.5 dB

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shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
List price $520.00
$499.98

In stock

Only 2 Left!

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• 150 watts Peak Each, 50 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• cone material
• Impedance: 4 ohm
• Sensitivity: 92.5 dB

Infinity Primus 503CF (PR503CF) (2-Pairs, 4-Total)

600W Peak (200W RMS) 5.25” Primus Series 2-Way Component Speaker System (2-Pairs)

PR503CF_2 big
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Infinity Primus 503CF (PR503CF) (2-Pairs, 4-Total)

600W Peak (200W RMS) 5.25” Primus Series 2-Way Component Speaker System (2-Pairs)

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
1
List price $299.90
-20% $239.90

In stock

Only 2 Left!

Add to Cart

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

Infinity Kappa 503CF (2-Pairs, 4-Total)

960W Peak (320W RMS) 5.25” Kappa Series 2-way Component Speakers System (2-Pairs)

KAPPA503CF_2 big
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Infinity Kappa 503CF (2-Pairs, 4-Total)

960W Peak (320W RMS) 5.25” Kappa Series 2-way Component Speakers System (2-Pairs)

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Edge-Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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found car based on your search
Fits your 911
1
List price $899.90
-38% $559.98

In stock

Only 1 Left!

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• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Edge-Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Rockford Fosgate Power T152 (2-Pairs, 4-Total)

480W Peak (240W RMS) 5.25" Power Series 2-way Coaxial Speakers (2-Pairs)

T152_2 big
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Rockford Fosgate Power T152 (2-Pairs, 4-Total)

480W Peak (240W RMS) 5.25" Power Series 2-way Coaxial Speakers (2-Pairs)

• Peak Power: 120W
• RMS Power: 60W
• Carbon Fiber and Polypropylene Injection Molded Cone
• Butyl Rubber Surround
• 1" Aluminum Dome Tweeter
• Offset Cantilever Coaxial Mounted Tweeter

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Fits your 911
22
$439.98

In stock

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• Peak Power: 120W
• RMS Power: 60W
• Carbon Fiber and Polypropylene Injection Molded Cone
• Butyl Rubber Surround
• 1" Aluminum Dome Tweeter
• Offset Cantilever Coaxial Mounted Tweeter

(4) Hifonics ZS46CX 4x6" 800 Watt Coaxial Car Audio Speakers

2 Pairs (4 Total) 400W Max (80W RMS) 4x6" Zeus Series 2-Way Coaxial Car Speakers Package

ZS46CX 2 Pack big
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(4) Hifonics ZS46CX 4x6" 800 Watt Coaxial Car Audio Speakers

2 Pairs (4 Total) 400W Max (80W RMS) 4x6" Zeus Series 2-Way Coaxial Car Speakers Package

• 200 Watts Max Each, 40 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
23
List price $49.98
-24% $37.92

In stock

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• 200 Watts Max Each, 40 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

Polk Audio DB522 with Sound Damping

600W Peak (200W RMS) 5.25" DB+ Series 2-way Marine Coaxial Speakers with Sound Dampening

SDSK2,DB 522 big
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Polk Audio DB522 with Sound Damping

600W Peak (200W RMS) 5.25" DB+ Series 2-way Marine Coaxial Speakers with Sound Dampening

• 300 Watts Max Each, 100 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 91dB
• Mounting Depth: 1.74"

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 911
  • Front Door
61
List price $128.73
-14% $111.24 /pair

In stock

Add to Cart

• 300 Watts Max Each, 100 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 91dB
• Mounting Depth: 1.74"

Hertz DCX460.3 (2-Pairs, 4-Total)

160W Peak (80W RMS) 4x6” Dieci Series 2-way Coaxial Car Speaker (2-Pairs)

DCX4603_2 big
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Hertz DCX460.3 (2-Pairs, 4-Total)

160W Peak (80W RMS) 4x6” Dieci Series 2-way Coaxial Car Speaker (2-Pairs)

• 80 Watts Max Each, 40 Watts RMS Each
• Water-repellent pressed paper Cone
• Woofer magnet: High density flux ferrite
• 4 Ohm Impedance
• Sensitivity: 93 dB
• Mounting Depth: 1-13/16"

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
List price $300.00
-13% $259.98

In stock

Only 2 Left!

Add to Cart

• 80 Watts Max Each, 40 Watts RMS Each
• Water-repellent pressed paper Cone
• Woofer magnet: High density flux ferrite
• 4 Ohm Impedance
• Sensitivity: 93 dB
• Mounting Depth: 1-13/16"

Rockford Fosgate P1462 4 x 6 Inch 140W 2-Way Full Range Car Speakers (12 Pack)

Rockford Fosgate P1462 4 x 6 Inch 140W 2-Way Full Range Car Speakers (12 Pack)

P1462 6 Pack big
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Rockford Fosgate P1462 4 x 6 Inch 140W 2-Way Full Range Car Speakers (12 Pack)

Rockford Fosgate P1462 4 x 6 Inch 140W 2-Way Full Range Car Speakers (12 Pack)

• Peak Power: 70W
• RMS Power: 35W
• Mineral-Filled and Polypropylene Injection Molded Cone
• Butyl Rubber Surround
• PEI Dome Tweeter
• ICC Crossover
• VAST Surround

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Fits your 911
37
$659.94

In stock

Add to Cart

• Peak Power: 70W
• RMS Power: 35W
• Mineral-Filled and Polypropylene Injection Molded Cone
• Butyl Rubber Surround
• PEI Dome Tweeter
• ICC Crossover
• VAST Surround

Cerwin Vega H752 (2-Pairs, 4-Total)

1000W Peak (160W RMS) 5.25” HED Series Coaxial Car Speakers (2-Pairs)

H752_2 big
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Cerwin Vega H752 (2-Pairs, 4-Total)

1000W Peak (160W RMS) 5.25” HED Series Coaxial Car Speakers (2-Pairs)

• 275 watts Peak Each, 40 watts RMS Each
• 1" Polypropylene Balanced Dome Tweeters
• Graphite Reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
5
List price $167.98
-17% $139.98

In stock

Add to Cart

• 275 watts Peak Each, 40 watts RMS Each
• 1" Polypropylene Balanced Dome Tweeters
• Graphite Reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Infinity REF507CF (2-Pairs, 4-Total)

780W Peak (260W RMS) 5.25" Reference Series 2-way 4-ohm Component Speaker System (2-Pairs)

REF507CF_2 big
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Infinity REF507CF (2-Pairs, 4-Total)

780W Peak (260W RMS) 5.25" Reference Series 2-way 4-ohm Component Speaker System (2-Pairs)

• 195 watts Peak Each, 65 watts RMS Each
• 3/4" Textile Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
List price $499.90
-12% $439.90

In stock

Add to Cart

• 195 watts Peak Each, 65 watts RMS Each
• 3/4" Textile Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

DS18 EXL-SQ5.25 (2-Pairs, 4-Total)

1360W Peak (320W RMS) 5.25" EXL-SQ Series 2-Way Coaxial Car Speakers (2-Pairs)

EXLSQ525_2 big
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DS18 EXL-SQ5.25 (2-Pairs, 4-Total)

1360W Peak (320W RMS) 5.25" EXL-SQ Series 2-Way Coaxial Car Speakers (2-Pairs)

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
$287.90

In stock

Only 1 Left!

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

Hertz CX 130 with Speaker Installation Kit

5.25" Cento Series 2-Way Coaxial Car Speakers

CX 130, SDSK2, XBAF525, SDRLR1 big
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Hertz CX 130 with Speaker Installation Kit

5.25" Cento Series 2-Way Coaxial Car Speakers

• 75 Watts Max Each, 25 Watts RMS Each
• Semi-pressed paper + Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 92.5 dB
• Mounting Depth: 2"

Save 15% Off Package Deals at Checkout!
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Install kits available for most vehicles

found car based on your search
Fits the following location in your 911
  • Front Door
148
List price $332.71
-13% $290.02 /pair

In stock

Add to Cart

• 75 Watts Max Each, 25 Watts RMS Each
• Semi-pressed paper + Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 92.5 dB
• Mounting Depth: 2"

Infinity PR503F with Speaker Installation Kit

120W Peak (40W RMS) Primus Series 5-1/4” 2-Way Car Speakers

INFSPKPR503F, XBAF525, SDSK2, SDRLR1, BTK106 big
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Infinity PR503F with Speaker Installation Kit

120W Peak (40W RMS) Primus Series 5-1/4” 2-Way Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

Save 15% Off Package Deals 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 911
  • Front Door
148
List price $172.66
-36% $109.98 /pair

In stock

Only 3 Left!

Add to Cart

• 120 watts Peak Each, 40 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

Infinity REF467F (2-Pairs, 4-Total)

540W Peak (180W RMS) 4x6" Reference Series 2-way 3-ohm Speakers (2-Pairs)

REF467F_2 big
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Infinity REF467F (2-Pairs, 4-Total)

540W Peak (180W RMS) 4x6" Reference Series 2-way 3-ohm Speakers (2-Pairs)

• 135 watts Peak Each, 45 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
List price $279.90
-21% $219.90

In stock

Add to Cart

• 135 watts Peak Each, 45 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Pioneer TS-A1301C (2-Pairs, 4-Total)

1200W Peak (200W RMS) 5.25" A-Series 2-way Component Speaker System (2-Pairs)

TSA1301C_2 big
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Pioneer TS-A1301C (2-Pairs, 4-Total)

1200W Peak (200W RMS) 5.25" A-Series 2-way Component Speaker System (2-Pairs)

• 300 watts Peak Each, 50 watts RMS Each
• 1-3/16" Polyetherimide Hard Dome Tweeters
• Carbon and mica Injection Molded Polypropylene - IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
List price $340.00
-18% $280.00

In stock

Only 1 Left!

Add to Cart

• 300 watts Peak Each, 50 watts RMS Each
• 1-3/16" Polyetherimide Hard Dome Tweeters
• Carbon and mica Injection Molded Polypropylene - IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Alpine S2-S50 (2-Pairs, 4-Total)

680W Peak (220W RMS) 5.25" S-Series 2-way Coaxial Car Speakers (2-Pairs)

S2S50_2 big
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Alpine S2-S50 (2-Pairs, 4-Total)

680W Peak (220W RMS) 5.25" S-Series 2-way Coaxial Car Speakers (2-Pairs)

• 170 watts Peak Each, 55 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Save 15% Off Package Deals at Checkout!
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found car based on your search
Fits your 911
2
List price $320.00
-19% $259.90

In stock

Only 1 Left!

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• 170 watts Peak Each, 55 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Hertz K 130 (2-Pairs, 4-Total)

880W Peak (220W RMS) 5.25” Uno Series Component Speakers (2-Pairs)

K130_2 big
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Hertz K 130 (2-Pairs, 4-Total)

880W Peak (220W RMS) 5.25” Uno Series Component Speakers (2-Pairs)

• 110 Watts Max Each, 30 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
1
List price $300.00
-33% $199.98

In stock

Only 3 Left!

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• 110 Watts Max Each, 30 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

Hertz DCX130.3 (2-Pairs, 4-Total)

160W Peak (80W RMS) 5.25" Dieci Series 2-Way Coaxial Car Speakers (2-Pairs)

DCX1303_2 big
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Hertz DCX130.3 (2-Pairs, 4-Total)

160W Peak (80W RMS) 5.25" Dieci Series 2-Way Coaxial Car Speakers (2-Pairs)

• 40Watts Max Each, 20 Watts RMS Each
• Water-repellent pressed paper cone material<
• PEI dome tweeter
• 4 Ohm Impedance
• Sensitivity: 93 dB
• Mounting Depth: 2-3/16"

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 911
List price $300.00
-13% $259.98

In stock

Only 1 Left!

Add to Cart

• 40Watts Max Each, 20 Watts RMS Each
• Water-repellent pressed paper cone material<
• PEI dome tweeter
• 4 Ohm Impedance
• Sensitivity: 93 dB
• Mounting Depth: 2-3/16"

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MTX Audio THUNDER51 with Sound Damping

360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System + NVX SDBSK2 Premium Sound Damping

THUNDER51_SDBSK2 big
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MTX Audio THUNDER51 with Sound Damping

360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System + NVX SDBSK2 Premium Sound Damping

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Fits your 911
48
List price $258.69
-17% $214.95

In stock

Add to Cart

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

JBL Stage3 607C with Speaker Installation Kit

Kappa Series 5.25” 2-Way Car Component Speakers System + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

Kappa 503CF, XBAF525, SDSK2, SDRLR1, BTK106 big
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JBL Stage3 607C with Speaker Installation Kit

Kappa Series 5.25” 2-Way Car Component Speakers System + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• 330 watts Watts Max Each Side, 110 watts Watts RMS Each Side
• 3/4"" Textile Dome Tweeter
• Fiberglass cone material
• Impedance: 3 ohm Ohm
• Sensitivity: 93 dB dB
• Mounting Depth: 2.25""

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

found car based on your search
Fits the following location in your 911
  • Front Door
149
List price $522.66
-39% $320.02 /set

In stock

Only 3 Left!

Add to Cart

• 330 watts Watts Max Each Side, 110 watts Watts RMS Each Side
• 3/4"" Textile Dome Tweeter
• Fiberglass cone material
• Impedance: 3 ohm Ohm
• Sensitivity: 93 dB dB
• Mounting Depth: 2.25""

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    Q: Can I upgrade or change the Speakers in 1990 Porsche 911?

    A: Yes this page includes all the best Speakers that work in your 911.

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    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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    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.

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