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1981 Audi 4000

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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 1981 Audi 4000

Find speakers to upgrade your sound and fit in the factory speaker location for your 4000.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

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Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Dash Corner

Dash Corner Speakers

Speakers for your dash corner

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

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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.
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JBL GX628 (GX628AM) with Sound Damping

360W Peak (120W RMS) 6.5" GX Series 2-way 2.3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

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JBL GX628 (GX628AM) with Sound Damping

360W Peak (120W RMS) 6.5" GX Series 2-way 2.3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 180 watts Peak Each, 60 watts RMS Each
• 1" Edge-driven Soft Dome tweeters with Harman-proprietary deflector
• Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 2.3 ohm
• Sensitivity: 92 dB

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49
List price $98.73
-14% $84.98
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• 180 watts Peak Each, 60 watts RMS Each
• 1" Edge-driven Soft Dome tweeters with Harman-proprietary deflector
• Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 2.3 ohm
• Sensitivity: 92 dB

Infinity Reference REF-4032cfx with Sound Damping

210W Peak (70W RMS) Reference Series 4" 2-Way Car Speakers + NVX SDSK2 Sound Damping

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Infinity Reference REF-4032cfx with Sound Damping

210W Peak (70W RMS) Reference Series 4" 2-Way Car Speakers + NVX SDSK2 Sound Damping

• 105 watts Peak Each, 35 watts RMS Each
• 1" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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49
List price $158.69
-40% $94.98
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• 105 watts Peak Each, 35 watts RMS Each
• 1" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

NVX - Worth the Envy - Direct to Consumer Car Audio

Alpine R2-S653 with Sound Damping

600W Peak (200W RMS) 6.5" R-Series PRO 3-Way Component Speakers with Magnesium Hard-Dome Tweeters + NVX SDSK2 Sound Damping

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Alpine R2-S653 with Sound Damping

600W Peak (200W RMS) 6.5" R-Series PRO 3-Way Component Speakers with Magnesium Hard-Dome Tweeters + NVX SDSK2 Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $858.74
-33% $574.94
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• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Limited time!

NVX XSP65KIT with Sound Damping

600W Peak (200W RMS) 6.5" X-Series 2-Way Component Speaker System with Carbon Fiber Cones and 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

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NVX XSP65KIT with Sound Damping

600W Peak (200W RMS) 6.5" X-Series 2-Way Component Speaker System with Carbon Fiber Cones and 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

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

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

Hertz SV 165.1 with Sound Damping

800W Peak (400W RMS) 6.5" SPL Show Series 4-ohm midrange car speakers + NVX SDSK2 Sound Damping

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Hertz SV 165.1 with Sound Damping

800W Peak (400W RMS) 6.5" SPL Show Series 4-ohm midrange car speakers + NVX SDSK2 Sound Damping

• 400 watts Peak Each, 200 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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49
List price $308.74
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• 400 watts Peak Each, 200 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

Limited time!

NVX XSP69KIT with Sound Damping

600W Peak (300W RMS) 6x9" X-Series 2-Way Component Speaker System with Carbon Fiber Cones and 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

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NVX XSP69KIT with Sound Damping

600W Peak (300W RMS) 6x9" X-Series 2-Way Component Speaker System with Carbon Fiber Cones and 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 150 watts RMS Each
• 1" Silk Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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List price $222.73
-17% $184.98
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• 300 watts Peak Each, 150 watts RMS Each
• 1" Silk Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

Lowest price in 30 days

Infinity REF607F with Sound Damping

360W Peak (120W RMS) 6.5" Reference Series 2-way 4-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

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Infinity REF607F with Sound Damping

360W Peak (120W RMS) 6.5" Reference Series 2-way 4-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

• 180 watts Peak Each, 60 watts RMS Each
• 1" Textile Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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50
List price $168.69
-34% $110.94
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• 180 watts Peak Each, 60 watts RMS Each
• 1" Textile Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Hifonics ZS693 with Sound Damping

800W Max (120W RMS) 6x9" Zeus 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Hifonics ZS693 with Sound Damping

800W Max (120W RMS) 6x9" Zeus 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 400 Watts Max Each, 60 Watts RMS Each
• 1" Mylar Dome Tweeter
• Alpha-Cellulose Cones
• 4 Ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 3.35"

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84
List price $68.73
-32% $46.98
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• 400 Watts Max Each, 60 Watts RMS Each
• 1" Mylar Dome Tweeter
• Alpha-Cellulose Cones
• 4 Ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 3.35"

Hifonics ZS693 with Installation Accessories

800W Max (120W RMS) 6x9" Zeus 3-Way Coaxial Car Speakers + 6x9" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

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Hifonics ZS693 with Installation Accessories

800W Max (120W RMS) 6x9" Zeus 3-Way Coaxial Car Speakers + 6x9" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 400 Watts Max Each, 60 Watts RMS Each
• 1" Mylar Dome Tweeter
• Alpha-Cellulose Cones
• 4 Ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 3.35"

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270
List price $122.70
-41% $71.85
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• 400 Watts Max Each, 60 Watts RMS Each
• 1" Mylar Dome Tweeter
• Alpha-Cellulose Cones
• 4 Ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 3.35"

Rockford Fosgate PRIME R165-S with Sound Damping

160W Peak (80W RMS) 6.5" Prime Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

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Rockford Fosgate PRIME R165-S with Sound Damping

160W Peak (80W RMS) 6.5" Prime Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 1/2" Mylar Balanced Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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73
List price $98.73
$94.98
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• 80 watts Peak Each, 40 watts RMS Each
• 1/2" Mylar Balanced Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Rockford Fosgate P165-SE with Sound Damping

240W Peak (120W RMS) 6.5" Punch Series 2-way 4-ohm Euro-Fit Component Speaker System + NVX SDBSK2 Premium Sound Damping

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Rockford Fosgate P165-SE with Sound Damping

240W Peak (120W RMS) 6.5" Punch Series 2-way 4-ohm Euro-Fit Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" treated PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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56
List price $218.73
$214.98
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• 120 watts Peak Each, 60 watts RMS Each
• 1" treated PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Infinity Primus PR693C with Sound Damping

480W Peak (160W RMS) 6x9” Primus Series 2-Way Component Speakers + NVX SDSK2 Sound Damping

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Infinity Primus PR693C with Sound Damping

480W Peak (160W RMS) 6x9” Primus Series 2-Way Component Speakers + NVX SDSK2 Sound Damping

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Save 15% Off Package Deals at Checkout!
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50
List price $218.69
-15% $184.94
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• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Massive Audio PK6S with Sound Damping

1000W Peak (500W RMS) 6.5" PK Series 2-way 4-ohm Shallow Component Speaker System + NVX SDBSK2 Premium Sound Damping

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Massive Audio PK6S with Sound Damping

1000W Peak (500W RMS) 6.5" PK Series 2-way 4-ohm Shallow Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 500 watts Peak Each, 250 watts RMS Each
• 1" Aluminum Bullet tweeters
• Laminate-Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

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50
List price $233.73
-21% $184.98
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• 500 watts Peak Each, 250 watts RMS Each
• 1" Aluminum Bullet tweeters
• Laminate-Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

Rockford Fosgate Punch P165-SI with Sound Damping

240W Peak (120W RMS) 6.5" Punch Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

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Rockford Fosgate Punch P165-SI with Sound Damping

240W Peak (120W RMS) 6.5" Punch Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" treated PEI (Polyetherimide) Dome Tweeters
• Injection molded mineral filled Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Save 15% Off Package Deals at Checkout!
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57
List price $178.73
$174.98
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• 120 watts Peak Each, 60 watts RMS Each
• 1" treated PEI (Polyetherimide) Dome Tweeters
• Injection molded mineral filled Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hertz DCX165.3 with Sound Damping

240W Peak (120W RMS) 6.5" Dieci Series 2-Way 4-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

DCX1653_SDSK2 big Out of stock
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Hertz DCX165.3 with Sound Damping

240W Peak (120W RMS) 6.5" Dieci Series 2-Way 4-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 5/8" PEI (Polyetherimide) Dome Tweeters
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Save 15% Off Package Deals at Checkout!
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Fits your 4000
52
List price $168.74
-14% $144.98
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• 120 watts Peak Each, 60 watts RMS Each
• 5/8" PEI (Polyetherimide) Dome Tweeters
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Rockford Fosgate Punch P1694 with Sound Damping

300W Peak (150W RMS) 6x9" Punch Series 4-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

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Rockford Fosgate Punch P1694 with Sound Damping

300W Peak (150W RMS) 6x9" Punch Series 4-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 75 watts RMS Each
• 1/2" PEI (Polyetherimide) Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Save 15% Off Package Deals at Checkout!
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102
List price $138.73
$134.98
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• 150 watts Peak Each, 75 watts RMS Each
• 1/2" PEI (Polyetherimide) Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

JBL Stage3 637F (STAGE3637FAM) with Sound Damping

270W Peak (90W RMS) 6.5" Stage3 Series 3-Way 3-Ohm Coaxial Car Speaker + NVX SDBSK2 Premium Sound Damping

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JBL Stage3 637F (STAGE3637FAM) with Sound Damping

270W Peak (90W RMS) 6.5" Stage3 Series 3-Way 3-Ohm Coaxial Car Speaker + NVX SDBSK2 Premium Sound Damping

• 135 watts Peak Each, 45 watts RMS Each
• Dome tweeters
• Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 92 dB

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50
List price $128.69
-18% $104.94
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• 135 watts Peak Each, 45 watts RMS Each
• Dome tweeters
• Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 92 dB

JBL GX9638 (JBLGX9638AM) with Sound Damping

600W Peak (200W RMS) 6x9" GX Series 3-way 2.3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

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JBL GX9638 (JBLGX9638AM) with Sound Damping

600W Peak (200W RMS) 6x9" GX Series 3-way 2.3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 1" Soft Dome tweeters
• Polypropylene cone material
• Impedance: 2.3 ohm
• Sensitivity: 94 dB

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64
List price $118.69
-12% $104.94
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• 300 watts Peak Each, 100 watts RMS Each
• 1" Soft Dome tweeters
• Polypropylene cone material
• Impedance: 2.3 ohm
• Sensitivity: 94 dB

Crunch CS653 with Sound Damping

600W Peak (300W RMS) 6.5" 3-Way CS Series Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Crunch CS653 with Sound Damping

600W Peak (300W RMS) 6.5" 3-Way CS Series Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 300W Max / 150W RMS
• Neo Mylar Soft Dome Tweeter
• Impedance: 4 ohm
• Cellulose Cone and Rubber Surround

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List price $51.73
-13% $44.98
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• 300W Max / 150W RMS
• Neo Mylar Soft Dome Tweeter
• Impedance: 4 ohm
• Cellulose Cone and Rubber Surround

Infinity KAPPA 693C with Sound Damping

435W Peak (145W RMS) Kappa Series 6x9” Component Speaker System with Sound Damping

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Infinity KAPPA 693C with Sound Damping

435W Peak (145W RMS) Kappa Series 6x9” Component Speaker System with Sound Damping

• 435 watts Peak Each, 145 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Save 15% Off Package Deals at Checkout!
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48
List price $568.69
-27% $414.94
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• 435 watts Peak Each, 145 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

NVX - Worth the Envy - Direct to Consumer Car Audio
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    A: Yes this page includes all the best Speakers that work in your 4000.

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