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1998 Audi A4 Quattro

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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 1998 Audi A4 Quattro

Find speakers to upgrade your sound and fit in the factory speaker location for your A4 Quattro.  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

Lower Front Door

Lower Front Door Speakers

Speakers for your lower front door.

Rear Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

Rear Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

Upper Front Door Speakers

Upper Front Door Speakers

Speakers for your upper front door.

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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.
Reference Series (30)
Punch Series (17)
V Series (15)
Club Series (13)
N-Series (13)
Polk DB+ Series (13)
Zeus Series (13)
A Series (12)
DMD Series (12)
HED Series (12)
Primus Series (12)
PRO-X Series (12)
S Series (12)
XED Series (12)
ZXI Series (12)
PNW Series (11)
Dieci Series (10)
Kappa Series (10)
Stage Series (10)
G-Series (TSG) (9)
Cento Series (8)
CS Series (8)
Prime Series (8)
C2 Series (7)
Terminator Series (6)
KFC Series (5)
KS Series (5)
Sport Series (5)
Thunder Series (5)
C1 Series (4)
Diamond Elite Series (4)
DRVN Series (4)
EXL Series (4)
Formula Series (4)
Gen-X (4)
Machete Series (4)
Power Series (4)
Premium Series (4)
PS Series (4)
Signature Series (4)
Colossus Classic Series (3)
Discus Series (3)
DS Series (3)
GT7 Series (3)
GX Series (3)
MX Series (3)
Prime Series (3)
Punch P1 Series (3)
SQ Series (3)
Stadium Series (3)
Stage 3 Gen 2 Series (3)
Stage 3 Series (3)
Uno Series (3)
VEGA Series (3)
X Series (3)
BASSREV Series (2)
C3 Series (2)
C7 Series (2)
CF Series (2)
DR Series (2)
Elite Series (2)
Focus Series (2)
MAS Series (2)
MR Series (2)
PRO Series (2)
PRO-FR Series (2)
Reserve Series (2)
RS Series (2)
Thunder Dome Series (2)
VTEK Series (2)
Altitude Series (1)
Apex Series (1)
Black Hydra Series (1)
CX Series (1)
DXQ Series (1)
E-Series (1)
eXcelon Series (1)
MotorSport Series (1)
Polk Audio MM1 Series (1)
Punch P3 Series (1)
Rage Series (1)
SPL Show Series (1)
Stadium (1)
Stage 2 Gen 2 Series (1)
Studio Series (1)
Symphony Series (1)
Tsunami Series (1)
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Diamond Audio DMD52 with Sound Damping

160W Peak (80W RMS) 5.25" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DMD52_SDSK2 big
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Diamond Audio DMD52 with Sound Damping

160W Peak (80W RMS) 5.25" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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47
List price $138.73
-10% $124.98

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• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

NVX NSP4 with Sound Damping

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP4_SDBSK2 big
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NVX NSP4 with Sound Damping

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

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72
List price $78.73
-30% $55.48

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• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

NVX NSP4 (2-Pairs, 4-Total)

600W Peak (200W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters (2-Pairs)

NSP4_2 big
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NVX NSP4 (2-Pairs, 4-Total)

600W Peak (200W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters (2-Pairs)

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

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25
List price $119.98
-29% $85.48

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• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

Hertz CX 100 + FREE $75 Gift Card

4" Cento Series 2-Way Coaxial Car Speakers

CX 100, 75EGIFT big
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Hertz CX 100 + FREE $75 Gift Card

4" Cento Series 2-Way Coaxial Car Speakers

• 60 Watts Max Each, 20 Watts RMS Each
• Semi-pressed paper + Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 1-3/4"

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Install kits available for most vehicles

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7
List price $335.00
-25% $249.99 /pair

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• 60 Watts Max Each, 20 Watts RMS Each
• Semi-pressed paper + Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 1-3/4"

Diamond Audio DES525 with Speaker Installation Kit

240W Peak (120W RMS) 5.25" Elite Series 2-Way Coaxial Car Speakers + 5.25” Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

DES525, XBAF525, SDSK2, SDRLR1, BTK106 big
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Diamond Audio DES525 with Speaker Installation Kit

240W Peak (120W RMS) 5.25" Elite Series 2-Way Coaxial Car Speakers + 5.25” Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

• 100 watts Peak Each, 50 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite Fiber Weave cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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Install kits available for most vehicles

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148
List price $262.70
-9% $240.02 /pair

In stock

Only 1 Left!

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• 100 watts Peak Each, 50 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite Fiber Weave cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Rockford Fosgate Power T152 with Sound Damping

240W Peak (120W RMS) 5.25" Power Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

T152_SDBSK2 big
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Rockford Fosgate Power T152 with Sound Damping

240W Peak (120W RMS) 5.25" Power Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome offset cantilever coaxial mounted tweeters
• Polypropylene-Carbon Fiber Hybrid cone material
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

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69
List price $238.73
$234.98

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• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome offset cantilever coaxial mounted tweeters
• Polypropylene-Carbon Fiber Hybrid cone material
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

Alpine S2-S40C 2 Pairs (4 Total)

140W Peak (45W RMS) 4" Next-Generation S-Series 2-way Component Speaker (2-Pairs)

S2S40C_2 big
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Alpine S2-S40C 2 Pairs (4 Total)

140W Peak (45W RMS) 4" Next-Generation S-Series 2-way Component Speaker (2-Pairs)

• 140 watts Peak Each, 45 watts RMS Each
• 3/4" Cloth Soft Dome Tweeters
• Interlaced Carbon-Glass Fiber Composite - IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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1
List price $360.00
-17% $299.90

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• 140 watts Peak Each, 45 watts RMS Each
• 3/4" Cloth Soft Dome Tweeters
• Interlaced Carbon-Glass Fiber Composite - IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Diamond Audio DESK3 with Sound Damping

100W Peak (50W RMS) 3.5" Elite Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

DESK3_SDSK2 big
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Diamond Audio DESK3 with Sound Damping

100W Peak (50W RMS) 3.5" Elite Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

• 100 watts Peak Each, 25 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 83 dB

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47
List price $308.73
$304.98

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• 100 watts Peak Each, 25 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 83 dB

Hertz DSK130.3 with Speaker Installation Kit

Includes: (2) 5.25" 2-Way Component speakers, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

DSK 130.3, XBAF525, SDRLR1, SDSK2, BTK106 big
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Hertz DSK130.3 with Speaker Installation Kit

Includes: (2) 5.25" 2-Way Component speakers, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

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

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Install kits available for most vehicles

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Fits select locations in your A4 Quattro.
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148
List price $302.71
-21% $240.02 /set

In stock

Only 3 Left!

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

Polk Audio DB5252 with Installation Accessories

200W RMS 5.25” 2-way Car & Marine Component Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

DB5252, XBAF525, SDSK2, SDRLR1, BTK106 big
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Polk Audio DB5252 with Installation Accessories

200W RMS 5.25” 2-way Car & Marine Component Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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Install kits available for most vehicles

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Fits select locations in your A4 Quattro.
Add vehicle details to confirm exact location.
152
List price $282.70
-15% $240.03 /set

In stock

Only 2 Left!

Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Hertz CX 130 with Sound Damping

300W Peak (100W RMS) 5.25" Cento Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

CX130_SDSK2 big
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Hertz CX 130 with Sound Damping

300W Peak (100W RMS) 5.25" Cento Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 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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47
List price $278.74
-5% $264.98

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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

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

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48
$264.94

In stock

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

Alpine S2-S40C with Sound Damping

280W Peak (90W RMS) 4" Next-Generation S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

S2S40C_SDSK2 big
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Alpine S2-S40C with Sound Damping

280W Peak (90W RMS) 4" Next-Generation S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

• 140 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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48
List price $198.74
-25% $149.95

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• 140 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

JVC CS-DR520

520W Peak (80W RMS) 5.25” 2-Way Factory Upgrade Coaxial Speakers - Pair

CS-DR520 big
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JVC CS-DR520

520W Peak (80W RMS) 5.25” 2-Way Factory Upgrade Coaxial Speakers - Pair

• 260 Watts Max Each, 40 Watts RMS Each
• Poly-Ether Imide Balanced Tweeter
• Carbon Mica Woofer Cone
• 4 Ohm Impedance
• Frequency Response: 85-25,000 Hz

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List price $119.00
-17% $99.00 /pair

In stock

Only 2 Left!

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Hertz K 130 with Sound Damping

440W Peak (110W RMS) 5.25” Uno Series Component Speakers + NVX SDSK2 Sound Damping

K130_SDSK2 big
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Hertz K 130 with Sound Damping

440W Peak (110W RMS) 5.25” Uno Series Component Speakers + NVX SDSK2 Sound Damping

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

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48
List price $168.74
-32% $114.98

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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

Rockford Fosgate Punch P132 with Sound Damping

80W Peak (40W RMS) 3.5” Punch Series 2-way 4-ohm Full Range Speaker + NVX SDBSK2 Premium Sound Damping

09-P132_SDBSK2 big
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Rockford Fosgate Punch P132 with Sound Damping

80W Peak (40W RMS) 3.5” Punch Series 2-way 4-ohm Full Range Speaker + NVX SDBSK2 Premium Sound Damping

• 40 watts Peak Each, 20 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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90
List price $108.73
$104.98

In stock

Only 1 Left!

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• 40 watts Peak Each, 20 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Hertz DSK130.3 + $75 Gift Card

120W Peak (60W RMS) 5.25” Dieci Series Component Speakers

DSK 130.3, 75EGIFT big
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Hertz DSK130.3 + $75 Gift Card

120W Peak (60W RMS) 5.25” Dieci Series Component Speakers

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

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Install kits available for most vehicles

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Fits select locations in your A4 Quattro.
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3
List price $305.00
-33% $203.57 /set

In stock

Only 3 Left!

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

Infinity Primus PR5012IS (PR5012ISAM) with Sound Damping

240W Peak (80W RMS) 5.25" Primus Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

PR5012ISAM_SDSK2 big
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Infinity Primus PR5012IS (PR5012ISAM) with Sound Damping

240W Peak (80W RMS) 5.25" Primus Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 120 watts Peak Each, 40 watts RMS Each
• Textile Edge-driven Dome Tweeters
• Polypropylene cone material
• Impedance: 2.7
• Sensitivity: 88 dB

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47
List price $138.69
-50% $69.94

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• 120 watts Peak Each, 40 watts RMS Each
• Textile Edge-driven Dome Tweeters
• Polypropylene cone material
• Impedance: 2.7
• Sensitivity: 88 dB

Infinity Reference 5032cfx (REF-5032cfx) with Sound Damping

270W Max (90W RMS) 5.25" Reference 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

REF5032CFXAM_SDSK2 big
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Infinity Reference 5032cfx (REF-5032cfx) with Sound Damping

270W Max (90W RMS) 5.25" Reference 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

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47
List price $148.74
-40% $89.98

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• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

Infinity Reference 5032cfx (REF-5032cfx) (2-Pairs, 4-Total)

540W Max (180W RMS) 5.25" Reference 2-Way Coaxial Car Speakers (2-Pairs)

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Infinity Reference 5032cfx (REF-5032cfx) (2-Pairs, 4-Total)

540W Max (180W RMS) 5.25" Reference 2-Way Coaxial Car Speakers (2-Pairs)

• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

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List price $260.00
-42% $149.98

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• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

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    FAQ for Speakers in 1998 A4 Quattro

    Q: Can I upgrade or change the Speakers in 1998 Audi A4 Quattro?

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