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Diamond Audio DMD52

160W Peak 5.25" DMD Series 2-way Coaxial Car Speakers

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160W Peak 5.25" DMD Series 2-way Coaxial Car Speakers

• 80 watts Peak Each
• 0.79" Silk Dome Tweeters
• Polypropylene cone material
• Sensitivity: 86 dB

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found car based on your search
Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
List price $119.99
-8% $109.99 /pair

In stock

Only 3 Left!

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List price $119.99
-8% $109.99
$98.99 with coupon | Price details
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DS18 PRO-X8M (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 8-ohm Mid-Range Loudspeaker

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550W Peak (275W RMS) 8” PRO-X Series 8-ohm Mid-Range Loudspeaker

• 550 watts Peak Each, 275 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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$64.95

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DS18 PRO-X5.4BM (Sold Individually)

300W Peak (150W RMS) 5.25” PRO-X Series 4-ohm Mid-Range Loudspeaker

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300W Peak (150W RMS) 5.25” PRO-X Series 4-ohm Mid-Range Loudspeaker

• 300 watts Peak Each, 150 watts RMS Each
• Red Aluminum Bullet tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
$49.95

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PRV Audio 8MB450-4 v2

900W Peak (450W RMS) 8" Pro Audio Midbass 4-ohm Car Speaker

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900W Peak (450W RMS) 8" Pro Audio Midbass 4-ohm Car Speaker

• 900 watts Peak Each, 450 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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List price $43.64
-20% $34.91

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Limited time!

Precision Power (PPI) MAS.522

150W RMS 5.25" MAS Series 2 Way Coaxial 2-ohm Motorcycle Speakers

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150W RMS 5.25" MAS Series 2 Way Coaxial 2-ohm Motorcycle Speakers

• 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 92 dB

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found car based on your search
Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
1
List price $349.99
-23% $269.99 /pair

In stock

Only 3 Left!

• 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 92 dB

Deaf Bonce Machete MFH-50

200W Peak (100W RMS) 5.25" Machete Series 4-ohm Full Range Car Speakers

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200W Peak (100W RMS) 5.25" Machete Series 4-ohm Full Range Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90.6 dB

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Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
$39.90 /pair

In stock

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Deaf Bonce HANNIBAL HM-8E

320W Peak (160W RMS) 8" Hannibal Series Midrange 4-ohm Car Speakers

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320W Peak (160W RMS) 8" Hannibal Series Midrange 4-ohm Car Speakers

• 160 watts Peak Each, 80 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91.8 dB

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$34.90 /pair

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JL Audio C3-525

300W Peak (150W RMS) 5.25" C3 Series 2-Way 4-ohm Component Speaker System

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300W Peak (150W RMS) 5.25" C3 Series 2-Way 4-ohm Component Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 2-way convertible speakers from component to coaxial
• 1" Silk Soft Dome tweeters with ferrofluid cooling and damping
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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found car based on your search
Fits multiple locations in your A4 Quattro
  • Front Door
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2
$529.99 /set

In stock

Used from: $450.49
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Hertz CX 130

300W Peak (100W RMS) 5.25" Cento Series 2-Way Coaxial 4-ohm Car Speakers

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300W Peak (100W RMS) 5.25" Cento Series 2-Way Coaxial 4-ohm Car Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 0.9" Tetolon Dome tweeters
• Semi-Pressed paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92.5 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
List price $260.00
$249.99 /pair

In stock

Infinity Primus 503F (INFSPKPR503F)

240W Peak (80W RMS) 5.25” Primus Series 2 Way Coaxial 3-ohm Speakers

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240W Peak (80W RMS) 5.25” Primus Series 2 Way Coaxial 3-ohm Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 1/2" Silk Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
List price $99.95
-30% $69.95 /pair

In stock

Only 3 Left!

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List price $99.95
-30% $69.95
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DS18 PRO-X8.4RGB (Sold Individually)

550W Peak (275W RMS) 8" Pro Midrange 4-ohm Speaker with RGB LED

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550W Peak (275W RMS) 8" Pro Midrange 4-ohm Speaker with RGB LED

• 550 watts Peak, 275 watts RMS
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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List price $115.99
-17% $95.95

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Hertz DCX130.3

160W Peak (80W RMS) 5.25" Dieci Series 2-way 4-ohm Coaxial Car Speakers

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160W Peak (80W RMS) 5.25" Dieci Series 2-way 4-ohm Coaxial Car Speakers

• 80 watts Peak Each, 40 watts RMS Each
• 0.6" PEI (Polyetherimide) Dome tweeters with neodynium magnets
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
List price $150.00
-13% $129.99 /pair

In stock

Only 2 Left!

Hertz MLK 700.3

400W Peak (200W RMS) 3" Mille Legend Series 4-ohm Component Speaker System

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400W Peak (200W RMS) 3" Mille Legend Series 4-ohm Component Speaker System

• 200 watts Peak Each, 100 watts RMS Each
• 1-7/16" Tetolon Dome tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Install kits available for most vehicles

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Fits multiple locations in your A4 Quattro
  • Center Dash
  • Dash Corner
List price $1765.00
-9% $1,599.99 /set

In stock

Cerwin-Vega PH84

720W Peak (360W RMS) 8" Pro Series Full Range Coaxial 4-ohm Speakers

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720W Peak (360W RMS) 8" Pro Series Full Range Coaxial 4-ohm Speakers

• 360 watts Peak Each, 180 watts RMS Each
• Horn Tweeter Loaded
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 103 dB

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List price $263.99
-17% $219.99 /pair

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Soundstream SPM.804X

1100W Peak (550W RMS) 8" Pro Audio Midrange 4-ohm Car Speakers

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1100W Peak (550W RMS) 8" Pro Audio Midrange 4-ohm Car Speakers

• 550 watts Peak Each, 275 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97.6 dB

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List price $76.99
Save 22%
-22% $59.99 /pair

In stock

Only 1 Left!

• 550 watts Peak Each, 275 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97.6 dB

Limited time!

Precision Power (PPI) MAS.524

150W RMS 5.25" MAS Series 2 Way Coaxial 4-ohm Motorcycle Speakers

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150W RMS 5.25" MAS Series 2 Way Coaxial 4-ohm Motorcycle Speakers

• Peak Each, 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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VIP Product Get $27.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
1
List price $349.99
-23% $269.99 /pair

In stock

• Peak Each, 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Hertz SX 690 H NEO

520W Peak (260W RMS) 6x9" SPL Show Series 3-Way Coaxial 4-ohm Car and Motorcycle Speakers

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520W Peak (260W RMS) 6x9" SPL Show Series 3-Way Coaxial 4-ohm Car and Motorcycle Speakers

• 260 watts Peak Each, 130 watts RMS Each
• 1.4" Tetolon Dome tweeter
• 1" Tetolon Dome super tweeter
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your A4 Quattro
  • Rear Door
  • Upper Front Door
List price $650.00
-15% $549.99 /pair

In stock

Only 2 Left!

PRV Audio 8CX380-4 SLIM

760W Peak (380W RMS) 8" 2 Way Coaxial Pro Audio 4-ohm Shallow Car Speaker

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760W Peak (380W RMS) 8" 2 Way Coaxial Pro Audio 4-ohm Shallow Car Speaker

• 760 watts Peak, 380 watts RMS
• 1" Phenolic Horn tweeter
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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List price $99.89
-20% $79.91

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MTX RTX8 (Sold Individually)

300W RMS 8" Road Thunder Extreme Series Pro Audio Mid-bass 4-ohm Speakers

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300W RMS 8" Road Thunder Extreme Series Pro Audio Mid-bass 4-ohm Speakers

• 150 watts RMS Each
• Treated Paper cone material
• Large magnet attached to a stamped steel basket
• Impedance: 4 ohm
• Sensitivity: 97.7 dB

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List price $69.95
-14% $59.95

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Deaf Bonce Machete MLH-50

200W Peak (100W RMS) 5.2" Machete Series 4-ohm Full Range Car Speakers

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200W Peak (100W RMS) 5.2" Machete Series 4-ohm Full Range Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90.4 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your A4 Quattro
  • Front Door
  • Rear Seat Side Panel
$29.90 /pair

In stock

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

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