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2004 Mazda RX-8

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The best Lower Front Door Speakers for 2004 RX-8

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

Lower Front Door for 2004 Mazda RX-8

Shop and compare by low prices and top features on Lower Front Door Speakers that fit your Mazda RX-8. 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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Infinity REF687F (INFSPKRF687FUS)

360W Peak (120W RMS) 6x8" Reference Series 2-Way Coaxial 3-ohm Speakers

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Infinity REF687F (INFSPKRF687FUS)

360W Peak (120W RMS) 6x8" Reference Series 2-Way Coaxial 3-ohm Speakers

• 180 watts Peak Each, 60 watts RMS Each
• 1" Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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1
List price $159.95
Save $56.00
-35% $103.95 /pair

In stock

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Infinity Kappa 86cfx

600W Peak (200W RMS) 6"x8" Kappa Series 2-Way Coaxial Car Speakers

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Infinity Kappa 86cfx

600W Peak (200W RMS) 6"x8" Kappa Series 2-Way Coaxial Car Speakers

• 300 watts Peak Each, 100 watts RMS Each
• Textile Edge-driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 2.5
• Sensitivity: 94 dB

Free Speaker Accessory at Checkout!
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1
List price $204.00
-12% $179.95 /pair

In stock

Only 1 Left!

Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• Textile Edge-driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 2.5
• Sensitivity: 94 dB

NVX - Worth the Envy - Direct to Consumer Car Audio
Limited time!

Infinity REF-8632CFX (REF8632CFXAM)

360W Peak (120W RMS) 6x8" Reference Series 2 Way Coaxial 3-ohm Speakers

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Infinity REF-8632CFX (REF8632CFXAM)

360W Peak (120W RMS) 6x8" Reference Series 2 Way Coaxial 3-ohm Speakers

• 180 watts Peak Each, 60 watts RMS Each
• 1" Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
29
List price $159.95
-50% $79.95 /pair

In stock

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Infinity PR683F (INFSPKPR683F)

300W Peak (100W RMS) 6x8" Primus Series 2 Way Coaxial 3-ohm Speakers

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Infinity PR683F (INFSPKPR683F)

300W Peak (100W RMS) 6x8" Primus Series 2 Way Coaxial 3-ohm Speakers

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

Free Speaker Accessory at Checkout!
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List price $119.95
-25% $89.95 /pair

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Infinity Kappa 683XF (INFSPKKA683XFAM) (Open Box, Good)

600W Peak (200W RMS) 6x8" Kappa Series 2 Way Coaxial 3-ohm Speakers

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Infinity Kappa 683XF (INFSPKKA683XFAM) (Open Box, Good)

600W Peak (200W RMS) 6x8" Kappa Series 2 Way Coaxial 3-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Textile Edge Driven Dome tweeters
• Glass Fiber cone material
• Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Free or discounted install kits when available.

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Add details to confirm fitment.
List price $299.95
-50% $149.97 /pair

In stock

Only 1 Left!

Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Textile Edge Driven Dome tweeters
• Glass Fiber cone material
• Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

Infinity PR683F with Speaker Installation Kit

150W Peak (50W RMS) 6x8" 2-way Coaxial Speakers with Sound Dampening, Speaker Baffles and Panel Removal Kit

INFSPKPR683F, XBAF68, SDSK2, SDRLR2, BTK106 big
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Infinity PR683F with Speaker Installation Kit

150W Peak (50W RMS) 6x8" 2-way Coaxial Speakers with Sound Dampening, Speaker Baffles and Panel Removal Kit

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

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
152
List price $202.66
-34% $133.48 /pair

In stock

Add to Cart

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

Infinity Primus PR6510CS with Speaker Installation Kit

Includes: (2) 6" x 8" 2-Way speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

REF8632CFXAM, XBAF68, SDRLR1, SDSK2, BTK106 big
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Infinity Primus PR6510CS with Speaker Installation Kit

Includes: (2) 6" x 8" 2-Way speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 180 Watts Max Each, 60 Watts RMS Each
• 2 Piece Foam Speaker Ring Kit
• 1.38 Square Feet of Sound Damping
• Installer Panel Removal Tool Kit
• Rubber Roller

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
181
List price $242.66
-49% $123.55

In stock

Add to Cart

• 180 Watts Max Each, 60 Watts RMS Each
• 2 Piece Foam Speaker Ring Kit
• 1.38 Square Feet of Sound Damping
• Installer Panel Removal Tool Kit
• Rubber Roller

Limited time!

Infinity Kappa 683XF (INFSPKKA683XFAM)

600W Peak (200W RMS) 6x8" Kappa Series 2-Way Coaxial 3-ohm Car Speakers

Kappa 683XF big Out of stock
Go to item page Right Arrow Icon of Right Arrow

Infinity Kappa 683XF (INFSPKKA683XFAM)

600W Peak (200W RMS) 6x8" Kappa Series 2-Way Coaxial 3-ohm Car Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Textile Edge Driven Dome tweeters
• Glass Fiber cone material
• Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

Free Speaker Accessory at Checkout!
VIP Star Icon

VIP Product Get $28.00 in rewards to spend later

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Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
3
List price $329.95
-15% $279.95 /pair
Add to Cart
Used from: $149.97

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Textile Edge Driven Dome tweeters
• Glass Fiber cone material
• Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

Infinity Kappa 683XF with Speaker Installation Kit

Includes: (2) 6" x 8" 2-Way speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

INFSPKKA683XFAM, XBAF68, SDRLR1, SDSK2, BTK106 big Out of stock
Go to item page Right Arrow Icon of Right Arrow

Infinity Kappa 683XF with Speaker Installation Kit

Includes: (2) 6" x 8" 2-Way speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" High-resolution Silk Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Save 15% Off Package Deals at Checkout!
install icon

Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
155
List price $412.66
-22% $323.55 /pair
Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" High-resolution Silk Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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    FAQ for Lower Front Door Speakers in 2004 RX-8

    Q: Can I upgrade or change the Lower Front Door Speakers in 2004 Mazda RX-8?

    A: Yes this page includes all the best Lower Front Door Speakers that work in your RX-8.

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