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2001 Audi A4 Quattro

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The best Lower Front Door Speakers for 2001 A4 Quattro

Overview Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Lower Front Door for 2001 Audi A4 Quattro

Shop and compare by low prices and top features on Lower Front Door Speakers that fit your Audi A4 Quattro. After you add to cart, we'll also make sure you get an affordable car speakers install easily with speaker adapters, speaker harnesses and other accessories like sound damping and panel tools to make installation a breeze.

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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.
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Hertz MPK1650.3 with Speaker Installation Kit

6.5" Mille PRO Series 2-Way 3 Ohm Component Speakers with Sound Dampening, Speaker Baffles and Heavy Duty Roller

MPK1650.3, BTK106, SDSK2, FRING65, SDRLR1 big
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Hertz MPK1650.3 with Speaker Installation Kit

6.5" Mille PRO Series 2-Way 3 Ohm Component Speakers with Sound Dampening, Speaker Baffles and Heavy Duty Roller

• 125 Watts Max Each, 25 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

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Install kits available for most vehicles

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183
List price $1012.71
-17% $840.53 /set

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Only 1 Left!

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• 125 Watts Max Each, 25 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 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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182
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"

Earthquake EQ6-8 with Installation Accessories

50W RMS 6.5” Midbass Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

(2)EQ6-8, XBAF65, SDSK2, SDRLR1, BTK106 big
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Earthquake EQ6-8 with Installation Accessories

50W RMS 6.5” Midbass Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 200 watts Max
• 50 watts RMS
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 89.7 dB
• Mounting Depth: 2-5/8"

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255
List price $247.71
-34% $163.51

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• 200 watts Max
• 50 watts RMS
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 89.7 dB
• Mounting Depth: 2-5/8"

Massive Audio M6XL (Pair) with Speaker Installation Kit

400W Max (200W RMS) 6.5" Midrange Speakers with Sound Dampening, Speaker Baffles and Heavy Duty Roller

M6XL_2, XBAF65, SDSK2, SDRLR1 big
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Massive Audio M6XL (Pair) with Speaker Installation Kit

400W Max (200W RMS) 6.5" Midrange Speakers with Sound Dampening, Speaker Baffles and Heavy Duty Roller

• 6-1/2" M Series Mid-Range Driver
• 400W Max
• 200W RMS
• 8 ohm Impedance
• Reinforced Paper Cone
• Foam Edge Surround
• 27oz. Ferrite Magnet

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182
List price $218.70
-39% $134.25

Available

Ships in 10-14 days

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• 6-1/2" M Series Mid-Range Driver
• 400W Max
• 200W RMS
• 8 ohm Impedance
• Reinforced Paper Cone
• Foam Edge Surround
• 27oz. Ferrite Magnet

DS18 EXL-SQ6.5 with Speaker Installation Kit

Includes: 6.5” Coaxial Speakers w/ PIE Dome Tweeters, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

EXL-SQ6.5, FRING65, SDRLR1, SDSK2, BTK106 big
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DS18 EXL-SQ6.5 with Speaker Installation Kit

Includes: 6.5” Coaxial Speakers w/ PIE Dome Tweeters, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 400 watts Max Each, 120 watts RMS Each
• 1.14" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB
• Mounting Depth: 2.55"

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185
List price $432.61
-7% $400.44 /pair

In stock

Only 1 Left!

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• 400 watts Max Each, 120 watts RMS Each
• 1.14" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB
• Mounting Depth: 2.55"

Diamond Audio H65SH with Installation Accessories

150W RMS 6.5" HEX 2-Way Shallow Component Speakers with Speake Baffles, Sound Damping, Roller, and Panel Removal Kit

H65SH, XBAF65, SDSK2, SDRLR1, BTK106 big
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Diamond Audio H65SH with Installation Accessories

150W RMS 6.5" HEX 2-Way Shallow Component Speakers with Speake Baffles, Sound Damping, Roller, and Panel Removal Kit

• 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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255
$793.52 /pair

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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"

Diamond Audio H65A with Speaker Installation Kit

300W Peak (150W RMS) 6.5" HEX Series 2-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

H65A, XBAF65, SDSK2, SDRLR1, BTK106 big
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Diamond Audio H65A with Speaker Installation Kit

300W Peak (150W RMS) 6.5" HEX Series 2-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 88.3 dB

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255
$813.52 /set

In stock.

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 88.3 dB

Diamond Audio MS65NEO with Installation Accessories

150W RMS 6.5" Midrange Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

MS65NEO, XBAF65, SDSK2, SDRLR1, BTK106 big
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Diamond Audio MS65NEO with Installation Accessories

150W RMS 6.5" Midrange Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 300 watts Max Each, 150 watts RMS Each
• Tweeters
• Waterproof black Dupont Kevlar cone and dust cap
• Impedance: 4 ohm
• Sensitivity: 94 dB
• Mounting Depth: 2.78"

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256
$813.52 /pair

In stock.

Add to Cart

• 300 watts Max Each, 150 watts RMS Each
• Tweeters
• Waterproof black Dupont Kevlar cone and dust cap
• Impedance: 4 ohm
• Sensitivity: 94 dB
• Mounting Depth: 2.78"

DS18 PRO-FR6NEO (Sold Individually) - Open Box, Great

450W Peak (225W RMS) 6.5” PRO-FR Series 4-ohm Full-Range Bullet Loudspeaker

PRO-FR6NEO big
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DS18 PRO-FR6NEO (Sold Individually) - Open Box, Great

450W Peak (225W RMS) 6.5” PRO-FR Series 4-ohm Full-Range Bullet Loudspeaker

• Peak Each, RMS Each
• Tweeters
• cone material
• Impedance:
• Sensitivity:

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List price $143.95
-15% $122.36

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• Peak Each, RMS Each
• Tweeters
• cone material
• Impedance:
• Sensitivity:

JL Audio C2-650 (Open Box, Great)

200W RMS 6.5" Evolution C2 Series 2-way 4-ohm Component Speaker System

C2-650 big
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JL Audio C2-650 (Open Box, Great)

200W RMS 6.5" Evolution C2 Series 2-way 4-ohm Component Speaker System

• 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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21
List price $329.99
-15% $280.49 /set

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Rockford Fosgate T1650-S (Open Box, Great)

320W Peak (160W RMS) 6.5" Power Series 2-way 4-ohm Euro-Fit Component Speaker System

T1650-S big
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Rockford Fosgate T1650-S (Open Box, Great)

320W Peak (160W RMS) 6.5" Power Series 2-way 4-ohm Euro-Fit Component Speaker System

• 160 watts Peak Each, 80 watts RMS Each
• 1" Treated Fabric Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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1
List price $379.99
-15% $322.99

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JL Audio C3-600 (Open Box, Great)

300W Peak (150W RMS) 6” Evolution C3 Series 2-way 4-ohm Convertible Component Speaker System

C3-600 big
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JL Audio C3-600 (Open Box, Great)

300W Peak (150W RMS) 6” Evolution C3 Series 2-way 4-ohm Convertible Component Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Soft Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89.5 dB

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1
List price $529.99
-15% $450.49 /set

In stock

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Rockford Fosgate Power T1650 (Open Box, Great)

300W Peak (150W RMS) 6.5" Power Series 2-way 4-ohm Coaxial Car Speakers

T1650 big
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Rockford Fosgate Power T1650 (Open Box, Great)

300W Peak (150W RMS) 6.5" Power Series 2-way 4-ohm Coaxial Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Injection-molded Carbon Fiber-filled Polypropylene cone material with Vertical Attach Surround Technique (VAST)
• Impedance: 4 ohm
• Sensitivity: 88 dB

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10
List price $219.99
-15% $186.99 /pair

In stock

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Rockford Fosgate PRIME R165-S (Open Box, Great)

160W Peak (80W RMS) 6.5" Prime Series 2-way 4-ohm Component Speaker System

R165-S big
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Rockford Fosgate PRIME R165-S (Open Box, Great)

160W Peak (80W RMS) 6.5" Prime Series 2-way 4-ohm Component Speaker System

• 80 watts Peak Each, 40 watts RMS Each
• 1/2" Mylar Balanced Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

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25
List price $79.99
-15% $67.99 /set

In stock

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MB Quart PS1-216 with Installation Accessories

120W RMS 6.5" Premium Series Component Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

PS1-216, XBAF65, SDSK2, SDRLR1, BTK106 big
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MB Quart PS1-216 with Installation Accessories

120W RMS 6.5" Premium Series Component Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 120 watts Peak Each, 60 watts RMS Each
• 1" Magnesium Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 88.9 dB

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255
List price $327.70
-35% $214.15 /set

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Only 1 Left!

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• 120 watts Peak Each, 60 watts RMS Each
• 1" Magnesium Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 88.9 dB

JBL GX608C (GX608CAM)

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

GX608C big Out of stock
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JBL GX608C (GX608CAM)

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

• 210 watts Peak Each, 70 watts RMS Each
• 1-13/16" Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.3 ohm
• Sensitivity: 92 dB

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$119.95 /set
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• 210 watts Peak Each, 70 watts RMS Each
• 1-13/16" Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.3 ohm
• Sensitivity: 92 dB

JBL Club 620F (SPKCB620FAM)

330W Peak (110W RMS) 6.5" Club Series 2-way 3-ohm Shallow Mount Coaxial Car Speakers

Club 620F big Out of stock
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JBL Club 620F (SPKCB620FAM)

330W Peak (110W RMS) 6.5" Club Series 2-way 3-ohm Shallow Mount Coaxial Car Speakers

• 165 watts Peak Each, 55 watts RMS Each
• 3/4" PEI (Polyetherimide) Balanced Dome tweeters
• UV-resistant Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

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2
List price $129.95
-38% $79.95 /pair
Add to Cart
Used from: $55.97

• 165 watts Peak Each, 55 watts RMS Each
• 3/4" PEI (Polyetherimide) Balanced Dome tweeters
• UV-resistant Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 92 dB

Limited time!

Rockford Fosgate Prime R165X3

180W Peak (90W RMS) 6.5" Prime Series 3 Way Coaxial 4-ohm Speakers

R165X3 big Out of stock
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Rockford Fosgate Prime R165X3

180W Peak (90W RMS) 6.5" Prime Series 3 Way Coaxial 4-ohm Speakers

• 90 watts Peak Each, 45 watts RMS Each
• 1/2" Piezo pole-mounted Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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154
$79.99 /pair
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Used from: $48.99

• 90 watts Peak Each, 45 watts RMS Each
• 1/2" Piezo pole-mounted Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Limited time!

Kicker PSC652 (51PSC652)

240W Peak (120W RMS) 6.5" PS Series 2 Way Coaxial 2-ohm Marine and Powersports Speakers

51PSC652 big Out of stock
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Kicker PSC652 (51PSC652)

240W Peak (120W RMS) 6.5" PS Series 2 Way Coaxial 2-ohm Marine and Powersports Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 92.5 dB

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Install kits available for most vehicles

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1
List price $219.99
Save $60.03
-27% $159.96 /pair
Add to Cart

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 92.5 dB

Limited time!

Kenwood KFC-1698RS

700W Peak (200W RMS) 6.5" RS Series 2-Way Coaxial 4-ohm Car Speakers

KFC-1698RS big Out of stock
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Kenwood KFC-1698RS

700W Peak (200W RMS) 6.5" RS Series 2-Way Coaxial 4-ohm Car Speakers

• 350 watts Peak Each, 100 watts RMS Each
• 1" Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
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Install kits available for most vehicles

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1
List price $130.00
-16% $109.00 /pair
Add to Cart

• 350 watts Peak Each, 100 watts RMS Each
• 1" Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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

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

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    Identify your vehicle and submodel details
    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
    • 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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