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2008 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 2008 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.

Center Dash Speaker(s)

Center Dash Speakers

Speakers for your center dash

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

Rear Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

Rear Seat Side Panel Speakers

Rear Seat Side Panel Speakers

Speakers for your rear seat side panel.

Upper Front Door Speakers

Upper Front Door Speakers

Speakers for your upper front door.

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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.
PRO-X Series (32)
Reference Series (22)
V Series (14)
Kappa Series (13)
Machete Series (12)
Primus Series (12)
PRO Series (12)
Punch Series (11)
S Series (10)
ZXI Series (10)
Polk DB+ Series (9)
PRO-GM Series (9)
Stage Series (9)
HED Series (8)
SPL (8)
XED Series (8)
NEO Series (7)
SPL Show Series (7)
Cento Series (6)
Dieci Series (6)
EQ Series (6)
Mille Legend Series (6)
N-Series (6)
G-Series (TSG) (5)
Terminator Series (5)
Thunder Series (5)
Apocalypse Series (4)
DMD Series (4)
MSNEO Series (4)
PNW Series (4)
Power Series (4)
Premium Series (4)
Prime Series (4)
Signature Series (4)
Street Reference Pro (4)
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MC Series (3)
MSPRO Series (3)
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KS Series (2)
LCMR Series (2)
MA Series (2)
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MR Series (2)
PANCADÃO Series (2)
PRO-NS Series (2)
PRO-SM Series (2)
PS Series (2)
Punch Pro Series (2)
SA Series (2)
Thunder Dome Series (2)
VEGA Series (2)
VTEK Series (2)
BASSREV Series (1)
Black Hydra Series (1)
CF Series (1)
Colossus Classic Series (1)
CVPRO Series (1)
CVPX Series (1)
Diamond Elite Series (1)
Discus Series (1)
DR Series (1)
E-Series (1)
ECX Series (1)
EPIC PRO Series (1)
EQ NEO Series (1)
eXcelon Series (1)
Godfather Pro Series (1)
Hawk Series (1)
HED Pro Series (1)
Mille Pro Series (1)
MM Series (1)
NEO SPL Series (1)
Octagonal Series (1)
Polk Audio MM1 Series (1)
Pro Audio on Wheels Series (1)
Pro Audio Series (1)
PRO-CF Series (1)
PRO-ZT Series (1)
Punch P1 Series (1)
Road Thunder Extreme Series (1)
RS Series (1)
SQ Series (1)
Stadium (1)
Stage 3 Gen 2 Series (1)
Stallion Series (1)
Studio Series (1)
Symphony Series (1)
Tsunami Series (1)
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Massive Audio M8S (Sold Individually)

300W Peak (140W RMS) 8” M Series 4-ohm Shallow Midrange Car Speaker

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Massive Audio M8S (Sold Individually)

300W Peak (140W RMS) 8” M Series 4-ohm Shallow Midrange Car Speaker

• 300 watts Peak Each, 140 watts RMS Each
• Laminate-Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 98 dB
• Ultra shallow mounting depth

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List price $99.99
-20% $79.99

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Massive Audio MC8II (Sold Individually)

600W Peak (200W RMS) 8" MC Series 8-ohm Pro-Audio Midrange Car Speaker

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Massive Audio MC8II (Sold Individually)

600W Peak (200W RMS) 8" MC Series 8-ohm Pro-Audio Midrange Car Speaker

• 600 watts Peak Each, 200 watts RMS Each
• Kevlar-Enhanced Paper cone material
• Impedance: 8 ohm
• Sensitivity: 98.1 dB

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List price $99.99
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DS18 ZXI-5254

360W Peak (120W RMS) 5.25" ZXi Series 2-way 4-ohm Coaxial Car Speakers

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DS18 ZXI-5254

360W Peak (120W RMS) 5.25" ZXi Series 2-way 4-ohm Coaxial Car Speakers

• 180 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters with neodynioum magnets
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

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Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
$83.95 /pair

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DS18 PRO-HY8MSL

400W Peak (200W RMS) 8" PRO-HY Series 8-ohm Shallow-mount Mid-range Speaker

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DS18 PRO-HY8MSL

400W Peak (200W RMS) 8" PRO-HY Series 8-ohm Shallow-mount Mid-range Speaker

• 400 watts Peak Each, 200 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

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$94.95

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DS18 PRO-HY8.4MSL

400W Peak (200W RMS) 8" PRO-HY Series 8-ohm Shallow-mount Mid-range Speaker

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DS18 PRO-HY8.4MSL

400W Peak (200W RMS) 8" PRO-HY Series 8-ohm Shallow-mount Mid-range Speaker

• 400 watts Peak Each, 200 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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$94.95

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DS18 PRO-CF8.4SL (Sold Individually)

550W Peak (275W RMS) 8" PRO-CF Series Shallow-mount Mid-bass Speaker

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DS18 PRO-CF8.4SL (Sold Individually)

550W Peak (275W RMS) 8" PRO-CF Series Shallow-mount Mid-bass Speaker

• 275 watts Peak Each, 550 watts RMS Each
• Water Resistant Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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$95.95

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American Bass GFPRO-8-MB (Sold Individually)

500W Peak (250W RMS) 8" Godfather Pro Series Midbass 4-ohm Speaker

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American Bass GFPRO-8-MB (Sold Individually)

500W Peak (250W RMS) 8" Godfather Pro Series Midbass 4-ohm Speaker

• 500 watts Peak Each, 250 watts RMS Each
• Kevlar Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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List price $124.08
-29% $88.70

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American Bass STALLION 8 NEO (Sold Individually)

1600W Peak (800W RMS) 8" Stallion Series 4-ohm Midrange Speaker

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American Bass STALLION 8 NEO (Sold Individually)

1600W Peak (800W RMS) 8" Stallion Series 4-ohm Midrange Speaker

• 800 watts Peak Each, 400 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 99.5 dB

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List price $209.88
-39% $127.68

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DS18 8OCT400-8 (Sold Individually)

800W Peak (400W RMS) 8" Octagonal Series 8-ohm Mid-range Speaker

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DS18 8OCT400-8 (Sold Individually)

800W Peak (400W RMS) 8" Octagonal Series 8-ohm Mid-range Speaker

• 800 watts Peak Each, 400 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 98 dB

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$114.95

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American Bass STUDIO 5.25 FR

240W Peak (120W RMS) 5.25" Studio Series 2 Way Coaxial Full Range 4-ohm Speakers (STUDIO-5.25-FR)

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American Bass STUDIO 5.25 FR

240W Peak (120W RMS) 5.25" Studio Series 2 Way Coaxial Full Range 4-ohm Speakers (STUDIO-5.25-FR)

• 120 watts Peak Each, 60 watts RMS Each
• 1/2" Hard Dome tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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  • Rear Seat Side Panel
List price $101.64
-26% $74.75 /pair

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Limited time!

DS18 PRO-ZXI8.4BM (Sold Individually)

700W Peak (350W RMS) 8" ZXi Series 4-Ohm Midrange Bullet Loudspeaker

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DS18 PRO-ZXI8.4BM (Sold Individually)

700W Peak (350W RMS) 8" ZXi Series 4-Ohm Midrange Bullet Loudspeaker

• 700 watts Peak Each, 350 watts RMS Each
• Aluminum Bullet Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99 dB

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List price $112.99
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Sundown Audio LCMR-8 (LCMR84)

100W RMS 8" LCMR Series Pro Audio Midrange 4-ohm Speaker (S-LCMR84)

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Sundown Audio LCMR-8 (LCMR84)

100W RMS 8" LCMR Series Pro Audio Midrange 4-ohm Speaker (S-LCMR84)

• 100 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 94 dB

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List price $83.99
-17% $69.99

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DS18 PRO-X8BM (Sold Individually)

500W Peak (275W RMS) 8” PRO-X Series 8-ohm Mid-Range Bullet Loudspeaker

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DS18 PRO-X8BM (Sold Individually)

500W Peak (275W RMS) 8” PRO-X Series 8-ohm Mid-Range Bullet Loudspeaker

• 550 watts Peak Each, 275 watts RMS Each
• Red tweeter
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96 dB

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$70.95

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DS18 PRO-SM8.2 (Sold Individually)

500W Peak (250W RMS) 8” PRO Series Shallow Midrange 2-ohm Motorcycle and Powersports Loudspeaker

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DS18 PRO-SM8.2 (Sold Individually)

500W Peak (250W RMS) 8” PRO Series Shallow Midrange 2-ohm Motorcycle and Powersports Loudspeaker

• 500 watts Peak, 250 watts RMS
• Water Resistance Paper cone material
• Impedance: 2 ohm
• Sensitivity: 97 dB

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DS18 8PRO400MR-4 (Sold Individually)

400W Peak (200W RMS) 8" Pro Midrange 4-ohm Speaker

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DS18 8PRO400MR-4 (Sold Individually)

400W Peak (200W RMS) 8" Pro Midrange 4-ohm Speaker

• 400 watts Peak, 200 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 104 dB

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List price $86.99
-17% $71.95

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Massive Audio MA8 (Sold Individually)

350W Peak (150W RMS) 8" MA Series 8-ohm Pro-Audio Midrange Car Speaker

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Massive Audio MA8 (Sold Individually)

350W Peak (150W RMS) 8" MA Series 8-ohm Pro-Audio Midrange Car Speaker

• 350 watts Peak Each, 150 watts RMS Each
• Hardened Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96 dB

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List price $62.49
-28% $44.99

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Diamond Audio MSMB82NEO

1200W Peak (600W RMS) 8" MSNEO Series Mid Bass 2-ohm Car and Motorcycle Speakers

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Diamond Audio MSMB82NEO

1200W Peak (600W RMS) 8" MSNEO Series Mid Bass 2-ohm Car and Motorcycle Speakers

• 600 watts Peak Each, 300 watts RMS Each
• DUPONT™ Kevlar cone material
• Impedance: 2 ohm
• Sensitivity: 95 dB

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$879.99 /pair

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Earthquake Sound EQ8-4 (Sold Individually)

250W Peak 8” EQ Series 4-ohm Midbass Car Speaker

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Earthquake Sound EQ8-4 (Sold Individually)

250W Peak 8” EQ Series 4-ohm Midbass Car Speaker

• 250 watts Peak Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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List price $85.00
-35% $54.99

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DS18 PRO-NS8.4 (Sold Individually)

400W Peak (200W RMS) 8" PRO-NS Series 4-ohm Shallow-mount Mid-range Speaker

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DS18 PRO-NS8.4 (Sold Individually)

400W Peak (200W RMS) 8" PRO-NS Series 4-ohm Shallow-mount Mid-range Speaker

• 400 watts Peak Each, 200 watts RMS Each
• 1-1/4" Dome Tweeter
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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$79.95

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Kenwood KFC-C1356S

520W Peak (60W RMS) 5.25" 2-way 4-ohm Dual Cone Car Speakers

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Kenwood KFC-C1356S

520W Peak (60W RMS) 5.25" 2-way 4-ohm Dual Cone Car Speakers

• 260 watts Peak Each, 30 watts RMS Each
• Cone tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

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Fits multiple locations in your A4 Quattro
  • Front Door
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List price $60.00
-42% $34.99 /pair

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    FAQ for Speakers in 2008 A4 Quattro

    Q: Can I upgrade or change the Speakers in 2008 Audi A4 Quattro?

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

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