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  1. Home
  2. Car Audio & Electronics
  3. Car Speakers
  4. 6x8" Speakers

6x8" Speakers for your 1993 740i close

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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.
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1993 740i
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MTX Audio THUNDER681

180W RMS 5x7" / 6x8" Thunder Series 2 Way Component 4-ohm Speaker System

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MTX Audio THUNDER681

180W RMS 5x7" / 6x8" Thunder Series 2 Way Component 4-ohm Speaker System

• 90 watts RMS Each
• 1.18" 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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$249.95 /set

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Ships in 10-14 days

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Diamond Audio DMDX68

300W Peak (100W RMS) 6x8" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers

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Diamond Audio DMDX68

300W Peak (100W RMS) 6x8" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers

• 150 watts Peak Each, 50 watts RMS Each
• Dome Tweeters
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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Install kits available for most vehicles

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Fits multiple locations in your 740i
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$159.99 /pair

In stock.

Add to Cart
Limited time!

Diamond Audio DMD683

160W Peak (80W RMS) 6x8" DMD Series 3-way Coaxial Car Speakers

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Diamond Audio DMD683

160W Peak (80W RMS) 6x8" DMD Series 3-way Coaxial Car Speakers

• 80 watts Peak Each, 40 watts RMS Each
• 0.79" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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Install kits available for most vehicles

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Fits multiple locations in your 740i
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List price $169.99
$164.99 /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

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List price $119.95
-25% $89.95 /pair

In stock

Only 2 Left!

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Cerwin-Vega H682

540W Peak (180W RMS) 6x8" HED Series 2-Way Coaxial 4-ohm Speakers

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Cerwin-Vega H682

540W Peak (180W RMS) 6x8" HED Series 2-Way Coaxial 4-ohm Speakers

• 270 watts Peak Each, 90 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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$95.99 /pair

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Diamond Audio DES682

200W Peak (100W RMS) 6x8" DES Series 2-way Coaxial Car Speakers

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Diamond Audio DES682

200W Peak (100W RMS) 6x8" DES Series 2-way Coaxial Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• 1" Aluminum Dome tweeters with ferrofluid cooling
• Composite Foam Core Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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Install kits available for most vehicles

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$199.99 /pair

In stock.

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Limited time!

Rockford Fosgate Punch P1683 (Open Box, Great)

260W Peak (130W RMS) 6x8" Punch Series 3-way 4-ohm Coaxial Car Speakers

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Rockford Fosgate Punch P1683 (Open Box, Great)

260W Peak (130W RMS) 6x8" Punch Series 3-way 4-ohm Coaxial Car Speakers

• 130 watts Peak Each, 65 watts RMS Each
• 3/4" tweeter and 1/2" super tweeter PEI (Polyetherimide) Dome tweeters
• Injection-molded Mineral-filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

10% Off Open Box!
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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
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List price $109.99
-30% $76.99 /pair
$69.29 with coupon | Price details

In stock

Only 1 Left!

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Limited time!

Sony XS-680GS (Like New (Open Box))

460W Peak (80W RMS) 6x8“ GS Series 2-way 4-ohm Coaxial Car Speakers

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Sony XS-680GS (Like New (Open Box))

460W Peak (80W RMS) 6x8“ GS Series 2-way 4-ohm Coaxial Car Speakers

• 230 watts Peak Each, 40 watts RMS Each
• 13/16" Silk Soft Dome tweeters
• Composite Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

10% Off Open Box!
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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
List price $149.99
-16% $125.80 /pair
$113.22 with coupon | Price details

In stock

Only 2 Left!

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Pioneer TS-A6881F (Open Box, Good)

700W Peak (160W RMS) 6x8" A-Series 4-way 4-ohm Coaxial Car Speakers

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Pioneer TS-A6881F (Open Box, Good)

700W Peak (160W RMS) 6x8" A-Series 4-way 4-ohm Coaxial Car Speakers

• 350 watts Peak Each, 80 watts RMS Each
• Dual 0.43" Polyethylene Terephthalate (PET) Dome tweeters
• Carbon and Mica-reinforced IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

10% Off Open Box!
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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
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List price $110.00
-63% $40.19 /pair
$36.17 with coupon | Price details

In stock

Only 1 Left!

Add to Cart

• 350 watts Peak Each, 80 watts RMS Each
• Dual 0.43" Polyethylene Terephthalate (PET) Dome tweeters
• Carbon and Mica-reinforced IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

JVC CS-DR6820

600W Peak (90W RMS) 6x8” 2-Way Factory Upgrade Coaxial Speakers - Pair

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JVC CS-DR6820

600W Peak (90W RMS) 6x8” 2-Way Factory Upgrade Coaxial Speakers - Pair

• 300 Watts Max Each, 45 Watts RMS Each
• Poly-Ether Imide Balanced Tweeter
• Carbon Mica Woofer Cone
• 4 Ohm Impedance
• Frequency Response: 65-25,400 Hz

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
5
List price $138.80
-21% $109.00 /pair

In stock

Add to Cart

JBL CLUB 864F (JBLSPKCB864F) (Open Box, Great)

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

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JBL CLUB 864F (JBLSPKCB864F) (Open Box, Great)

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

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• UV-Resistant Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
1
List price $139.95
-29% $98.95 /pair

In stock

Add to Cart

JL Audio C1-570x (C1570x) (Open Box, Great)

150W Peak (100W RMS) 5x7" / 6x8" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

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JL Audio C1-570x (C1570x) (Open Box, Great)

150W Peak (100W RMS) 5x7" / 6x8" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

• 75 watts Peak Each, 50 watts RMS Each
• 3/4" Silk-suspended Aluminum Edge-driven Dome tweeters with ferrofluid cooling and neodymium magnet
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
4
List price $129.99
-15% $110.49 /pair

In stock

Add to Cart

Rockford Fosgate Punch P1683 (Open Box, Great)

260W Peak (130W RMS) 6x8" Punch Series 3-way 4-ohm Coaxial Car Speakers

P1683 big
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Rockford Fosgate Punch P1683 (Open Box, Great)

260W Peak (130W RMS) 6x8" Punch Series 3-way 4-ohm Coaxial Car Speakers

• 130 watts Peak Each, 65 watts RMS Each
• 3/4" tweeter and 1/2" super tweeter PEI (Polyetherimide) Dome tweeters
• Injection-molded Mineral-filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
85
List price $109.99
-15% $93.49 /pair

In stock

Add to Cart

Rockford Fosgate Power T1682 (Open Box, Great)

320W Peak (160W RMS) 6x8" Power Series 2-way 4-ohm Full-Range Car Speakers

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Rockford Fosgate Power T1682 (Open Box, Great)

320W Peak (160W RMS) 6x8" Power Series 2-way 4-ohm Full-Range Car Speakers

• 160 watts Peak Each, 80 watts RMS Each
• 1" Aluminum Dome tweeters with polyurethane suspension
• Polypropylene-Carbon Fiber Hybrid cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
23
List price $239.99
-15% $203.99 /pair

In stock

Add to Cart

Rockford Fosgate Prime R168X2 (Open Box, Great)

220W Max (110W RMS) 6x8" Prime Series 2 Way Full Range Coaxial 4-ohm Car Speakers

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Rockford Fosgate Prime R168X2 (Open Box, Great)

220W Max (110W RMS) 6x8" Prime Series 2 Way Full Range Coaxial 4-ohm Car Speakers

• 110 watts Peak Each, 55 watts RMS Each
• 1/2" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
16
List price $89.99
-15% $76.49 /pair

In stock

Add to Cart
Limited time!

Kicker KSC68 (51KSC6804)

150W Peak (75W RMS) 6x8" KS Series 2 Way Coaxial 4-ohm Speakers

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Kicker KSC68 (51KSC6804)

150W Peak (75W RMS) 6x8" KS Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
2
List price $149.99
-13% $129.99 /pair
Add to Cart

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Limited time!

JBL Stadium GTO860C

600W Peak (200W RMS) 6x8" Stadium GTO Series 2-Way Component Speaker System

Stadium GTO860C big Out of stock
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JBL Stadium GTO860C

600W Peak (200W RMS) 6x8" Stadium GTO Series 2-Way Component Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• 1-3/16" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 2.5
• Sensitivity: 93 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
3
List price $269.99
Save $70.04
-26% $199.95 /set
Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 1-3/16" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 2.5
• Sensitivity: 93 dB

Limited time!

Rockford Fosgate Punch P1 P1572

240W Peak (120W RMS) 5x7" Punch Series 2 Way Coaxial 4-ohm Speakers

P1572 big Out of stock
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Rockford Fosgate Punch P1 P1572

240W Peak (120W RMS) 5x7" Punch Series 2 Way Coaxial 4-ohm Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Free Speaker Accessory at Checkout!
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found car based on your search
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7
$109.99 /pair
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• 120 watts Peak Each, 60 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

JBL STAGE3 GEN2 868F (STAGE3868F)

1120W Peak (140W RMS) 6x8" Stage3 Gen2 Series 2-Way Coaxial 4-ohm Car Speakers

No picture Out of stock
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JBL STAGE3 GEN2 868F (STAGE3868F)

1120W Peak (140W RMS) 6x8" Stage3 Gen2 Series 2-Way Coaxial 4-ohm Car Speakers

• 560 watts Peak Each, 70 watts RMS Each
• PEI (Polyetherimide) Balanced Dome Tweeters
• Plus One Polypropylene cone material
• Impedance: 4 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 740i
  • Front Door
  • Rear Door
List price $109.95
-18% $89.95 /pair
Add to Cart

• 560 watts Peak Each, 70 watts RMS Each
• PEI (Polyetherimide) Balanced Dome Tweeters
• Plus One Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Crunch CS5768CX

500W Peak (100W RMS) 5x7"/6x8" CS Series 2-Way Coaxial 4-ohm Car Speakers

CS5768CX big Out of stock
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Crunch CS5768CX

500W Peak (100W RMS) 5x7"/6x8" CS Series 2-Way Coaxial 4-ohm Car Speakers

• 250 watts Peak Each, 50 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 740i
  • Front Door
  • Rear Door
13
List price $33.99
-12% $29.99 /pair
Notify Me

• 250 watts Peak Each, 50 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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