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  5. 6.75" Speakers Closeout

6.75" Speakers Closeout for your 1979 633CSi 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.
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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Liquidation Station: Open Box & Refurbished Items

Kicker CSS67 (46CSS674) (Open Box, Great)

600W Peak (200W RMS) 6.75" CS Series 2 Way Component 4-ohm Speaker System

46CSS674 big
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Kicker CSS67 (46CSS674) (Open Box, Great)

600W Peak (200W RMS) 6.75" CS Series 2 Way Component 4-ohm Speaker System

• 300 watts Max Each, 100 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 1-7/8"

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

No Fit Icon Doesn't fit your 633CSi

List price $199.99
-37% $125.99 /set

In stock

Only 1 Left!

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• 300 watts Max Each, 100 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 1-7/8"

Rockford Fosgate Punch P1675-S (Open Box, Great)

240W Peak (120W RMS) 6.75" Punch Series 2-way 4-ohm Component Speaker System

P1675-S big
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Rockford Fosgate Punch P1675-S (Open Box, Great)

240W Peak (120W RMS) 6.75" Punch Series 2-way 4-ohm Component Speaker System

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

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

No Fit Icon Doesn't fit your 633CSi

List price $159.99
-30% $111.99 /set

In stock

Only 1 Left!

Add to Cart

Kicker CSC67 (46CSC674) (Open Box, Great)

600W Peak (200W RMS) 6.75” CS Series 2 Way Coaxial 4-ohm Speakers

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Kicker CSC67 (46CSC674) (Open Box, Great)

600W Peak (200W RMS) 6.75” CS Series 2 Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

No Fit Icon Doesn't fit your 633CSi

List price $119.99
-42% $69.99 /pair

In stock

Only 2 Left!

Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Rockford Fosgate T1675 (Open Box, Great)

300W Peak (150W RMS) 6.75” Power Series 2 Way Coaxial 4-ohm Car Speakers

T1675 big
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Rockford Fosgate T1675 (Open Box, Great)

300W Peak (150W RMS) 6.75” Power Series 2 Way Coaxial 4-ohm Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Carbon Fiber Reinforced IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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

No Fit Icon Doesn't fit your 633CSi

17
List price $219.99
-15% $186.99 /pair

In stock

Add to Cart

Rockford Fosgate P1675 (Open Box, Great)

240W Peak (120W RMS) 6.75” Punch Series 3 Way Coaxial 4-ohm Car Speakers

P1675 big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate P1675 (Open Box, Great)

240W Peak (120W RMS) 6.75” Punch Series 3 Way Coaxial 4-ohm Car Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

No Fit Icon Doesn't fit your 633CSi

48
List price $109.99
-15% $93.49 /pair

In stock

Add to Cart

Rockford Fosgate PRIME R1675-S (Open Box, Great)

160W Peak (80W RMS) 6.75” Prime Series 2-way 4-ohm Component Car Speakers

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Rockford Fosgate PRIME R1675-S (Open Box, Great)

160W Peak (80W RMS) 6.75” Prime Series 2-way 4-ohm Component Car Speakers

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

No Fit Icon Doesn't fit your 633CSi

16
List price $79.99
-15% $67.99 /set

In stock

Add to Cart

Rockford Fosgate Power T1675-S (Open Box, Great)

400W Peak (200W RMS) 6.75" Power Series 2-way 4-ohm Component Speaker System

T1675-S big
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Rockford Fosgate Power T1675-S (Open Box, Great)

400W Peak (200W RMS) 6.75" Power Series 2-way 4-ohm Component Speaker System

• 200 watts Peak Each, 100 watts RMS Each
• 1" Cloth Dome tweeters with integral suspension
• Carbon Fiber Reinforced IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

No Fit Icon Doesn't fit your 633CSi

12
List price $359.99
-15% $305.99 /set

In stock

Add to Cart

Rockford Fosgate Punch P1675-S (Open Box, Great)

240W Peak (120W RMS) 6.75" Punch Series 2-way 4-ohm Component Speaker System

P1675-S big Out of stock
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Punch P1675-S (Open Box, Great)

240W Peak (120W RMS) 6.75" Punch Series 2-way 4-ohm Component Speaker System

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

install icon

Install kits available for most vehicles

No Fit Icon Doesn't fit your 633CSi

20
List price $159.99
-15% $135.99 /set
Notify Me

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

Rockford Fosgate R1675X2 (Open Box, Great)

180W Peak (90W RMS) 6.75" Prime Series 2 Way Coaxial 4-ohm Car Speakers

R1675X2 big Out of stock
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Rockford Fosgate R1675X2 (Open Box, Great)

180W Peak (90W RMS) 6.75" Prime Series 2 Way Coaxial 4-ohm Car Speakers

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

install icon

Install kits available for most vehicles

No Fit Icon Doesn't fit your 633CSi

56
List price $79.99
-15% $67.99 /pair
Notify Me

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

 
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