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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.

All car speakers

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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AudioControl PNW-69 with Sound Damping

200W Peak (100W RMS) 6x9″ PNW Series 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

PNW69_SDSK2 big
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AudioControl PNW-69 with Sound Damping

200W Peak (100W RMS) 6x9″ PNW Series 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.25 dB

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48
List price $347.74
-10% $313.99

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• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.25 dB

AudioControl PNW-69 with Installation Accessories

200W Peak (100W RMS) 6x9″ PNW Series 2-way 3-ohm Coaxial Speakers + 6x9” Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

PNW69_ACC_KIT big
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AudioControl PNW-69 with Installation Accessories

200W Peak (100W RMS) 6x9″ PNW Series 2-way 3-ohm Coaxial Speakers + 6x9” Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.25 dB

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270
List price $421.71
-18% $345.21

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• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.25 dB

NVX - Worth the Envy - Direct to Consumer Car Audio

MB QUART PK1-169 with Sound Damping

220W Peak (110W RMS) 6x9" Premium Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

PK1169_SDBSK2 big
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MB QUART PK1-169 with Sound Damping

220W Peak (110W RMS) 6x9" Premium Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome Tweeters
• Paper Fiber with Mica Coating curvilinear cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

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48
List price $238.73
-30% $167.73

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• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome Tweeters
• Paper Fiber with Mica Coating curvilinear cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

Diamond Audio DMD42 with Sound Damping

120W Peak (60W RMS) 4" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DMD42_SDSK2 big
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Diamond Audio DMD42 with Sound Damping

120W Peak (60W RMS) 4" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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48
List price $138.73
-10% $124.98

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• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Lowest price in 30 days

Infinity REF697F with Sound Damping

600W Peak (200W RMS) 6x9" Reference Series 2-way 4-ohm Speakers + NVX SDSK2 Sound Damping

REF697F_SDSK2 big
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Infinity REF697F with Sound Damping

600W Peak (200W RMS) 6x9" Reference Series 2-way 4-ohm Speakers + NVX SDSK2 Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 1" Textile Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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54
List price $188.69
-33% $126.94

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• 300 watts Peak Each, 100 watts RMS Each
• 1" Textile Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

Hertz CK 165F with Sound Damping

270W Peak (90W RMS) 6.5" Cento Series 2-Way Flat-profile Component Speaker system + NVX SDSK2 Sound Damping

CK165F_SDSK2 big
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Hertz CK 165F with Sound Damping

270W Peak (90W RMS) 6.5" Cento Series 2-Way Flat-profile Component Speaker system + NVX SDSK2 Sound Damping

• 135 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

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List price $498.74
-17% $414.98

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• 135 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

JBL GX428 (JBLGX428AM) with Sound Damping

210W Peak (70W RMS) 4" GX Series 2-way 2.3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

GX428AM_SDBSK2 big
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JBL GX428 (JBLGX428AM) with Sound Damping

210W Peak (70W RMS) 4" GX Series 2-way 2.3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 105 watts Peak Each, 35 watts RMS Each
• Edge-driven Soft Dome tweeters with deflector
• Polypropylene Plus One woofer cone material
• Impedance: 2.3 ohm
• Sensitivity: 90 dB

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$79.94

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• 105 watts Peak Each, 35 watts RMS Each
• Edge-driven Soft Dome tweeters with deflector
• Polypropylene Plus One woofer cone material
• Impedance: 2.3 ohm
• Sensitivity: 90 dB

Massive Audio MX4 with Sound Damping

300W Peak (60W RMS) 4" MX Series 2-way 4-ohm Coaxial Car Speakers+ NVX SDBSK2 Premium Sound Damping

MA-MX4_SDBSK2 big
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Massive Audio MX4 with Sound Damping

300W Peak (60W RMS) 4" MX Series 2-way 4-ohm Coaxial Car Speakers+ NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 30 watts RMS Each
• 0.51" Hard diaphragm Dome tweeters with ferro-fluid cooled VC
• Laminate-Treated Paper cone material
• 2 custom painted metal speaker grilles Included
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

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49
List price $68.73
-20% $54.98

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• 150 watts Peak Each, 30 watts RMS Each
• 0.51" Hard diaphragm Dome tweeters with ferro-fluid cooled VC
• Laminate-Treated Paper cone material
• 2 custom painted metal speaker grilles Included
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

Massive Audio M6XL (Sold Individually) with Sound Damping

400W Peak (200W RMS) 6.5" 8-ohm Pro-Audio Midrange Car Speaker + NVX SDBSK2 Premium Sound Damping

M6XL_SDBSK2 big
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Massive Audio M6XL (Sold Individually) with Sound Damping

400W Peak (200W RMS) 6.5" 8-ohm Pro-Audio Midrange Car Speaker + NVX SDBSK2 Premium Sound Damping

• 400 watts Peak Each, 200 watts RMS Each
• Hardened Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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48
List price $93.73
-31% $64.98

Available

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• 400 watts Peak Each, 200 watts RMS Each
• Hardened Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

Massive Audio MB6 (Sold Individually) with Sound Damping

300W Peak (150W RMS) 6.5" MB Series 4-ohm Pro-Audio Midrange Car Speaker + NVX SDBSK2 Premium Sound Damping

MB6_SDBSK2 big
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Massive Audio MB6 (Sold Individually) with Sound Damping

300W Peak (150W RMS) 6.5" MB Series 4-ohm Pro-Audio Midrange Car Speaker + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 150 watts RMS Each
• Hardened Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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48
List price $88.73
-21% $69.98

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• 300 watts Peak Each, 150 watts RMS Each
• Hardened Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

DS18 PRO-X6MSE (Sold Individually) with Sound Damping

450W Peak (225W RMS) 6.5” PRO-X Series 8-ohm Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROX6MSE_SDBSK2 big
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DS18 PRO-X6MSE (Sold Individually) with Sound Damping

450W Peak (225W RMS) 6.5” PRO-X Series 8-ohm Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 450 watts Peak Each, 225 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 95 dB

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48
List price $66.69
-12% $58.44

In stock.

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• 450 watts Peak Each, 225 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 95 dB

DS18 PRO-X6.4MSQ (Sold Individually) with Sound Damping

500W Peak (250W RMS) 6.5"x6.5" PRO-X Series 4-ohm Square Midrange Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROX64MSQ_SDBSK2 big
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DS18 PRO-X6.4MSQ (Sold Individually) with Sound Damping

500W Peak (250W RMS) 6.5"x6.5" PRO-X Series 4-ohm Square Midrange Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 500 watts Peak Each, 250 watts RMS Each
• Square midrange construction
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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48
List price $78.69
-10% $70.44

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• 500 watts Peak Each, 250 watts RMS Each
• Square midrange construction
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

DS18 ZXI-354 with Sound Damping

240W Peak (80W RMS) 3.5” ZXI Series 4-ohm Full-Range Car Speakers + NVX SDBSK2 Premium Sound Damping

ZXI354_SDBSK2 big
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DS18 ZXI-354 with Sound Damping

240W Peak (80W RMS) 3.5” ZXI Series 4-ohm Full-Range Car Speakers + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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51
List price $78.69
-10% $70.44

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• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

DS18 PRO-NS6 with Sound Damping

600W Peak (300W RMS) 6.5" PRO-NS Series 4-Ohm Midrange Loudspeaker + NVX SDBSK2 Premium Sound Damping

PRONS6_SDBSK2 big
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DS18 PRO-NS6 with Sound Damping

600W Peak (300W RMS) 6.5" PRO-NS Series 4-Ohm Midrange Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 150 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

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48
List price $90.69
-9% $82.44

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• 300 watts Peak Each, 150 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

Diamond Audio H65SH with Sound Damping

300W Peak (150W RMS) 6.5" HEX 2-Way Shallow Component Speakers + NVX SDSK2 Sound Damping

H65SH_SDSK2 big
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Diamond Audio H65SH with Sound Damping

300W Peak (150W RMS) 6.5" HEX 2-Way Shallow Component Speakers + NVX SDSK2 Sound Damping

• 150 watts Max Each, 75 watts RMS Each
• 2" Neodymium tweeters available in silk or aluminum
• Hard anodized black aluminum cone
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 1.3"

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$764.98

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• 150 watts Max Each, 75 watts RMS Each
• 2" Neodymium tweeters available in silk or aluminum
• Hard anodized black aluminum cone
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 1.3"

Hertz MPK165P.3 with Sound Damping

230W Peak (115W RMS) 6.5" Mille PRO Series 2-Way 3 Ohm Component speaker system + NVX SDSK2 Sound Damping

MPK165P3_SDSK2 big
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Hertz MPK165P.3 with Sound Damping

230W Peak (115W RMS) 6.5" Mille PRO Series 2-Way 3 Ohm Component speaker system + NVX SDSK2 Sound Damping

• 115 Watts Max Each, 55 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

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List price $783.74
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• 115 Watts Max Each, 55 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

Diamond Audio HXPRO653DI with Sound Damping

360W Peak (180W RMS) 6.5" HEX PRO Diamante Italia Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

HXPRO653DI_SDSK2 big
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Diamond Audio HXPRO653DI with Sound Damping

360W Peak (180W RMS) 6.5" HEX PRO Diamante Italia Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 89 dB

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$3,314.98

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• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 89 dB

JBL Arena X 36Be (JBLSPKAXAM) with Sound Damping

400W Max (200W RMS) 6.5" Arena X Series 3-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

ARENAX36BE_SDBSK2 big
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JBL Arena X 36Be (JBLSPKAXAM) with Sound Damping

400W Max (200W RMS) 6.5" Arena X Series 3-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 200 watts Peak Each, 100 watts RMS Each
• 1" Beryllium Edge Driven Dome tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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List price $5518.69
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• 200 watts Peak Each, 100 watts RMS Each
• 1" Beryllium Edge Driven Dome tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Rockford Fosgate Power T3652-S with Sound Damping

500W Peak (250W RMS) 6.5" T3 Power Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

T3652S_SDBSK2 big
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Rockford Fosgate Power T3652-S with Sound Damping

500W Peak (250W RMS) 6.5" T3 Power Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome tweeters with neodymium motor
• Liquid Crystal Polymer (LCP) cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

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List price $1318.73
$1,314.98

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• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome tweeters with neodymium motor
• Liquid Crystal Polymer (LCP) cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

Lowest price in 30 days

Infinity REF307F with Sound Damping

150W Peak (50W RMS) 3.5" Reference Series 2-way 3-ohm Speakers + NVX SDSK2 Sound Damping

REF307F_SDSK2 big Out of stock
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Infinity REF307F with Sound Damping

150W Peak (50W RMS) 3.5" Reference Series 2-way 3-ohm Speakers + NVX SDSK2 Sound Damping

• 75 watts Peak Each, 25 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $148.69
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• 75 watts Peak Each, 25 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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    FAQ for Speakers in 1981 4000

    Q: Can I upgrade or change the Speakers in 1981 Audi 4000?

    A: Yes this page includes all the best Speakers that work in your 4000.

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    • 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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