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2001 Audi A4 Quattro

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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 2001 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.

Lower Front Door

Lower Front Door Speakers

Speakers for your lower front door.

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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Dads & Grads Sale

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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.
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NVX VSP65KIT with Speaker Installation Kit

750W Peak (250W RMS) 6.5" V-Series 2-Way Component Speaker System with 25mm Silk Dome Tweeters

VSP65KIT, XBAF65, SDSK2, SDRLR1, BTK106 big
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NVX VSP65KIT with Speaker Installation Kit

750W Peak (250W RMS) 6.5" V-Series 2-Way Component Speaker System with 25mm Silk Dome Tweeters

• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.51"

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Install kits available for most vehicles

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337
List price $217.70
-30% $153.35 /set

In stock

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• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.51"

JBL Stage3 607C with Speaker Installation Kit

300W Peak (100W RMS) 6-1/2" Stage3 Series 2-Way 3-Ohm Component Car Speakers + NVX 6.5" Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

Stage3 607C, XBAF65, SDSK2, SDRLR1, BTK106 big
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JBL Stage3 607C with Speaker Installation Kit

300W Peak (100W RMS) 6-1/2" Stage3 Series 2-Way 3-Ohm Component Car Speakers + NVX 6.5" Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• 150 watts Max Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Plus One™ polypropylene woofer cones
• Impedance: 3 ohm
• Sensitivity: 92 dB @2.83V
• Mounting Depth: 1.90"

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Install kits available for most vehicles

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225
List price $268.66
-35% $174.71 /set

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• 150 watts Max Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Plus One™ polypropylene woofer cones
• Impedance: 3 ohm
• Sensitivity: 92 dB @2.83V
• Mounting Depth: 1.90"

MTX TERMINATOR6S with Speaker Installation Kit

6.5" 2-Way 45W RMS Car Audio Component Speakers with Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

TERMINATOR6S, XBAF65, SDSK2, SDRLR1, BTK106 big
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MTX TERMINATOR6S with Speaker Installation Kit

6.5" 2-Way 45W RMS Car Audio Component Speakers with Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• RMS Power (Watts): 45
• Peak Power (Watts): 90
• Shallow Mounting Depth
• Sensitivity: 85.5dB (2.83V/1m)
• Impedance: 4Ω
• Frequency Response: 62Hz - 20kHz

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Install kits available for most vehicles

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253
List price $187.66
-29% $133.48 /set

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• RMS Power (Watts): 45
• Peak Power (Watts): 90
• Shallow Mounting Depth
• Sensitivity: 85.5dB (2.83V/1m)
• Impedance: 4Ω
• Frequency Response: 62Hz - 20kHz

Infinity Primus 603F (PR603F) (2-Pairs, 4-Total)

600W Peak (200W RMS) 6.5” Primus Series 2-Way Coaxial Speakers (2-Pairs)

PR603F_2 big
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Infinity Primus 603F (PR603F) (2-Pairs, 4-Total)

600W Peak (200W RMS) 6.5” Primus Series 2-Way Coaxial Speakers (2-Pairs)

• 150 watts Peak Each, 50 watts RMS Each
• 1/2" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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7
List price $219.90
-27% $159.90

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• 150 watts Peak Each, 50 watts RMS Each
• 1/2" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

JBL CLUB 64SQ (2-Pairs, 4-Total)

900W Peak (300W RMS) 6.5" Club Series 3-ohms 2-Way Coaxial Car Speakers (2-Pairs)

CLUB64SQ_2 big
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JBL CLUB 64SQ (2-Pairs, 4-Total)

900W Peak (300W RMS) 6.5" Club Series 3-ohms 2-Way Coaxial Car Speakers (2-Pairs)

• 225 watts Peak Each, 75 watts RMS Each
• Silk Dome Tweeters
• UV-Treated Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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1
List price $399.90
-15% $339.90

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• 225 watts Peak Each, 75 watts RMS Each
• Silk Dome Tweeters
• UV-Treated Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

NVX VSP65 (2-Pairs, 4-Total)

1200W Peak (400W RMS) 6.5" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters (2-Pairs)

VSP65_2 big
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NVX VSP65 (2-Pairs, 4-Total)

1200W Peak (400W RMS) 6.5" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters (2-Pairs)

• 300 watts Peak Each, 100 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.51"

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64
List price $259.98
-20% $208.98

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• 300 watts Peak Each, 100 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.51"

MTX Audio THUNDER65 with Speaker Installation Kit

240W Peak (120W RMS) 6.5" 2-Way Thunder Series Coaxial Speakers w/ Silk Tweeters + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

THUNDER65, XBAF65, SDSK2, SDRLR1, BTK106 big
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MTX Audio THUNDER65 with Speaker Installation Kit

240W Peak (120W RMS) 6.5" 2-Way Thunder Series Coaxial Speakers w/ Silk Tweeters + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• 120 watts Peak Each, 60 watts RMS Each
• 1" pivoting Silk Soft Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

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256
List price $257.70
-29% $183.48 /pair

In stock

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• 120 watts Peak Each, 60 watts RMS Each
• 1" pivoting Silk Soft Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Alpine R2-S65 with Speaker Installation Kit

600W Peak 6.5" R-Series Coaxial Speakers + 6.5" Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

R2S65_ACC_KIT big
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Alpine R2-S65 with Speaker Installation Kit

600W Peak 6.5" R-Series Coaxial Speakers + 6.5" Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

• 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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Install kits available for most vehicles

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265
List price $487.71
-37% $307.31 /pair

In stock

Add to Cart

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

Cerwin-Vega V465C with Sound Damping

800W Peak (200W RMS) 6.5" Vega Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

V465C_SDSK2 big
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Cerwin-Vega V465C with Sound Damping

800W Peak (200W RMS) 6.5" Vega Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

• 400 watts Peak Each, 100 watts RMS Each
• 1" Titanium Dome Tweeters
• Curvilinear mica fiber composite cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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57
List price $234.73
-17% $194.98

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• 400 watts Peak Each, 100 watts RMS Each
• 1" Titanium Dome Tweeters
• Curvilinear mica fiber composite cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

DS18 PRO-FR6NEO with Speaker Installation Kit

Includes: 6.5” Full-Range Loudspeaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

PRO-FR6NEO, FRING65, SDRLR1, SDSK2, BTK106 big
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DS18 PRO-FR6NEO with Speaker Installation Kit

Includes: 6.5” Full-Range Loudspeaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 450 watts Max
• 225 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 2.36"

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Install kits available for most vehicles

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181
List price $360.61
-9% $328.44

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• 450 watts Max
• 225 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 2.36"

Alpine HDZ-653 with Accessories

300W Peak (100W RMS) Status Series 6.5” 3-way Component System

HDZ-653, XBAF65, SDSK2, SDRLR1, BTK106 big
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Alpine HDZ-653 with Accessories

300W Peak (100W RMS) Status Series 6.5” 3-way Component System

• 300 watts Peak Each, 100 watts RMS Each
• 1" Composite Cone Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Install kits available for most vehicles

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253
List price $1527.71
-34% $1,003.31

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Only 3 Left!

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• 300 watts Peak Each, 100 watts RMS Each
• 1" Composite Cone Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

(2) DS18 PRO-ZXI6M with Speaker Accessories

600W RMS 6.5" 8-Ohm Midrange Speaker with Sound Damping, Roller, and Panel Removal Kit

(2)PRO-ZXI6M, SDSK2, SDRLR1, BTK106 big
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(2) DS18 PRO-ZXI6M with Speaker Accessories

600W RMS 6.5" 8-Ohm Midrange Speaker with Sound Damping, Roller, and Panel Removal Kit

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

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Install kits available for most vehicles

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140
List price $232.70
-23% $178.04

In stock

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

NVX XSP652 with Installation Accessories

600W Peak (200W) RMS 6.5" X-Series 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

XSP652, XBAF65, SDSK2, SDRLR1, BTK106 big
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NVX XSP652 with Installation Accessories

600W Peak (200W) RMS 6.5" X-Series 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 300 watts Max Each, 100 watts RMS Each
• 1" Silk Dome Tweeters
• Lightweight Carbon Fiber cone
• Impedance: 4 ohm
• Sensitivity: 92 dB
• Mounting Depth: 2.52"

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Install kits available for most vehicles

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272
List price $267.70
-39% $163.52 /pair

In stock

Add to Cart

• 300 watts Max Each, 100 watts RMS Each
• 1" Silk Dome Tweeters
• Lightweight Carbon Fiber cone
• Impedance: 4 ohm
• Sensitivity: 92 dB
• Mounting Depth: 2.52"

Hertz X 165 (2-Pairs, 4-Total)

880W Peak (220W RMS) 6.5” Uno Series 2-way Coaxial Speakers (2-Pairs)

X165_2 big
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Hertz X 165 (2-Pairs, 4-Total)

880W Peak (220W RMS) 6.5” Uno Series 2-way Coaxial Speakers (2-Pairs)

• 220 watts Peak Each, 55 watts RMS Each
• 3/4" Neodymium Dome Tweeters
• Water Resistance Paper Cone cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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1
List price $190.00
-16% $159.98

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• 220 watts Peak Each, 55 watts RMS Each
• 3/4" Neodymium Dome Tweeters
• Water Resistance Paper Cone cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

NVX VSP65 Speakers with Installation Accessories

NVX 6.5" Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

VSP65, XBAF65, SDSK2, SDRLR1 big
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NVX VSP65 Speakers with Installation Accessories

NVX 6.5" Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 25mm Silk Soft Dome Tweeter
• Mounting Depth: 2-1/2"
• Lightweight Polypropylene Woofer Cone
• 4 Ohm Impedance
• Sensitivity: 89dB

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Install kits available for most vehicles

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317
List price $217.70
-29% $153.52 /pair

In stock

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• 25mm Silk Soft Dome Tweeter
• Mounting Depth: 2-1/2"
• Lightweight Polypropylene Woofer Cone
• 4 Ohm Impedance
• Sensitivity: 89dB

(Pair) DS18 GEN-X5.7 with Speaker Installation Kit

Includes: (2) 6.5” Mid-Range Loudspeaker with Bullet, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit

(2) PRO-X6.4BM, FRING65, SDSK2 big
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(Pair) DS18 GEN-X5.7 with Speaker Installation Kit

Includes: (2) 6.5” Mid-Range Loudspeaker with Bullet, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit

• 250W RMS 6.5” PRO-X Series Speakers
• 2 Piece Foam Speaker Ring Kit
• 1.38 Square Feet of Sound Damping

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Install kits available for most vehicles

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90
List price $144.63
-11% $128.98

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• 250W RMS 6.5” PRO-X Series Speakers
• 2 Piece Foam Speaker Ring Kit
• 1.38 Square Feet of Sound Damping

Hertz K 165 with Speaker Installation Kit

6.5" Uno Series 2-Way 4 ohm Component Speaker System + Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

K 165, XBAF65, SDSK2, SDRLR1, BTK106 big
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Hertz K 165 with Speaker Installation Kit

6.5" Uno Series 2-Way 4 ohm Component Speaker System + Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• 150 Watts Max Each, 35 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93.5 dB

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Install kits available for most vehicles

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257
List price $237.71
-40% $143.35 /set

In stock

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• 150 Watts Max Each, 35 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93.5 dB

Infinity Kappa 603CF with Speaker Installation Kit

Kappa Series 6.5" Component Speaker System + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

Kappa 603CF, XBAF65, SDSK2, SDRLR1, BTK106 big
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Infinity Kappa 603CF with Speaker Installation Kit

Kappa Series 6.5" Component Speaker System + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Silk Edge-driven Dom Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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Install kits available for most vehicles

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259
List price $587.66
-31% $403.31 /set

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• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Silk Edge-driven Dom Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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Alpine R2-S65C with Sound Damping

600W Peak (200W RMS) 6.5" R-Series 2-Way Component Speakers with Magnesium Hard-Dome Tweeters + NVX SDSK2 Sound Damping

R2S65C_SDSK2 big
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Alpine R2-S65C with Sound Damping

600W Peak (200W RMS) 6.5" R-Series 2-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

Save 15% Off Package Deals at Checkout!
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47
List price $498.74
-33% $334.94

In stock

Add to Cart

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

Alpine R2-S65C with Speaker Installation Kit

600W Peak 6.5" 2-Way Component Speakers + 6.5" Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

R2S65C_ACC_KIT big
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Alpine R2-S65C with Speaker Installation Kit

600W Peak 6.5" 2-Way Component Speakers + 6.5" Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

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

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

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254
List price $567.71
-36% $363.48 /set

In stock

Add to Cart

• 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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    FAQ for Speakers in 2001 A4 Quattro

    Q: Can I upgrade or change the Speakers in 2001 Audi A4 Quattro?

    A: Yes this page includes all the best Speakers that work in your A4 Quattro.

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

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