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1978 BMW 630CSi

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

Speakers & Speaker Installation for 1978 BMW 630CSi

Find speakers to upgrade your sound and fit in the factory speaker location for your 630CSi.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

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Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

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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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NVX NSP46 Speakers with Speaker Installation Kit

300W Peak (100W RMS) 4" x 6" 2-Way N-Series Coaxial Car Speakers with Speaker Baffles, Sound Dampening, Panel Removal Kit and Heavy Duty Roller

NSP46, FRING46, SDSK2, SDRLR1, BTK106 big
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NVX NSP46 Speakers with Speaker Installation Kit

300W Peak (100W RMS) 4" x 6" 2-Way N-Series Coaxial Car Speakers with Speaker Baffles, Sound Dampening, Panel Removal Kit and Heavy Duty Roller

• Peak Power: 150W Each
• RMS Power: 50W Each
• Real Wattage Certified. Not inflated/overrated.
• 2-Way Coaxial
• 4 ohm Impedance
• Polypropylene Cone Material
• Nitrile Butadiene Rubber Surround
• 20mm Silk Dome Tweeter

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 630CSi
  • Car Speakers
173
List price $132.70
-35% $85.82 /pair

In stock

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• Peak Power: 150W Each
• RMS Power: 50W Each
• Real Wattage Certified. Not inflated/overrated.
• 2-Way Coaxial
• 4 ohm Impedance
• Polypropylene Cone Material
• Nitrile Butadiene Rubber Surround
• 20mm Silk Dome Tweeter

Cerwin Vega H746 with Speaker Installation Kit

60W RMS 4"x6" Coaxial Car Speakers 4x6” Foam Speaker Rings + Sound Dampening, Roller and Panel Removal Kit

H746_ACC_KIT big
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Cerwin Vega H746 with Speaker Installation Kit

60W RMS 4"x6" Coaxial Car Speakers 4x6” Foam Speaker Rings + Sound Dampening, Roller and Panel Removal Kit

• 275 watts Peak Each, 30 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Graphite-injected reinforced spun cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 630CSi
  • Car Speakers
148
List price $132.70
-28% $95.82 /pair

In stock

Add to Cart

• 275 watts Peak Each, 30 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Graphite-injected reinforced spun cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Kenwood KFC-4675C with Installation Accessories

120W Peak (40W RMS) 4x6” 2-Way Car Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

KFC-4675C, FRING46, SDSK2, SDRLR1, BTK106 big
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Kenwood KFC-4675C with Installation Accessories

120W Peak (40W RMS) 4x6” 2-Way Car Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 60 watts Peak Each, 20 watts RMS Each
• 1" Polypropylene Balanced Dome Tweeters
• Injection Molded 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 the following location in your 630CSi
  • Car Speakers
155
List price $200.71
-44% $112.66 /pair

In stock

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• 60 watts Peak Each, 20 watts RMS Each
• 1" Polypropylene Balanced Dome Tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Infinity REF467F with Sound Damping

270W Peak (90W RMS) 4x6" Reference Series 2-way 3-ohm Speakers + NVX SDSK2 Sound Damping

REF467F_SDSK2 big
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Infinity REF467F with Sound Damping

270W Peak (90W RMS) 4x6" Reference Series 2-way 3-ohm Speakers + NVX SDSK2 Sound Damping

• 135 watts Peak Each, 45 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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Fits your 630CSi
46
List price $158.69
-21% $124.94

In stock

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• 135 watts Peak Each, 45 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Infinity REF467F (2-Pairs, 4-Total)

540W Peak (180W RMS) 4x6" Reference Series 2-way 3-ohm Speakers (2-Pairs)

REF467F_2 big
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Infinity REF467F (2-Pairs, 4-Total)

540W Peak (180W RMS) 4x6" Reference Series 2-way 3-ohm Speakers (2-Pairs)

• 135 watts Peak Each, 45 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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Fits your 630CSi
List price $279.90
-21% $219.90

In stock

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• 135 watts Peak Each, 45 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

NVX NSP46 (2-Pairs, 4-Total)

600W Peak (200W RMS) 4x6" 2-Way N-Series Coaxial Car Speakers with 20mm Silk Dome Tweeters (2-Pairs)

NSP46_2 big
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NVX NSP46 (2-Pairs, 4-Total)

600W Peak (200W RMS) 4x6" 2-Way N-Series Coaxial Car Speakers with 20mm Silk Dome Tweeters (2-Pairs)

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.81"

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34
List price $119.98
-21% $94.98

In stock

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• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.81"

MTX Audio THUNDER46 with Sound Damping

160W Peak (80W RMS) 4x6" Thunder Dome Series 2-way 4-ohm Coaxial Speakers + NVX SDBSK2 Premium Sound Damping

THUNDER46_SDBSK2 big
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MTX Audio THUNDER46 with Sound Damping

160W Peak (80W RMS) 4x6" Thunder Dome Series 2-way 4-ohm Coaxial Speakers + NVX SDBSK2 Premium Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 0.98" Silk Soft Dome tweeters
• Polypropylene cone material with concave design
• Impedance: 4 ohm
• Sensitivity: 92 dB

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46
List price $118.69
$114.94

Available

Ships in 10-14 days

Add to Cart

• 80 watts Peak Each, 40 watts RMS Each
• 0.98" Silk Soft Dome tweeters
• Polypropylene cone material with concave design
• Impedance: 4 ohm
• Sensitivity: 92 dB

Rockford Fosgate Punch P142 with Sound Damping

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

09-P142_SDBSK2 big
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Rockford Fosgate Punch P142 with Sound Damping

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

Save 15% Off Package Deals at Checkout!
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Fits your 630CSi
57
List price $128.73
$124.98

In stock

Only 1 Left!

Add to Cart

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

Rockford Fosgate Punch with Sound Damping

140W Peak (70W RMS) 4x6” Punch Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

09-P1462_SDBSK2 big
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Rockford Fosgate Punch with Sound Damping

140W Peak (70W RMS) 4x6” Punch Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 70 watts Peak Each, 35 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded Mineral-filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 630CSi
83
List price $128.73
$124.98

In stock

Add to Cart

• 70 watts Peak Each, 35 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded Mineral-filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Polk Audio DB462 with Sound Dampening Kit

300W Peak (100W RMS) 4" x 6" DB+ Series 2-way Marine Coaxial Speakers with Sound Dampening

SDSK2,DB462 big
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Polk Audio DB462 with Sound Dampening Kit

300W Peak (100W RMS) 4" x 6" DB+ Series 2-way Marine Coaxial Speakers with Sound Dampening

• 150 Watts Max Each, 50 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 90dB
• Mounting Depth: 1.81"
• IP65 rated

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 630CSi
  • Car Speakers
53
List price $118.73
-16% $99.99 /pair

In stock

Only 2 Left!

Add to Cart

• 150 Watts Max Each, 50 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 90dB
• Mounting Depth: 1.81"
• IP65 rated

Hifonics ZS46CX with Installation Accessories

400W Peak (80W RMS) Zeus Series 4x6" Zeus Series 2-Way Coaxial Car Speakers + 4"x6" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

ZS46CX_ACC_KIT big
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Hifonics ZS46CX with Installation Accessories

400W Peak (80W RMS) Zeus Series 4x6" Zeus Series 2-Way Coaxial Car Speakers + 4"x6" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 200 Watts Max Each, 40 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

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Fits your 630CSi
239
List price $97.70
-41% $57.36

In stock

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• 200 Watts Max Each, 40 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

Kenwood KFC-4675C with Sound Damping

60W Peak (20W RMS) 4x6” 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

KFC4675C_SDBSK2 big
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Kenwood KFC-4675C with Sound Damping

60W Peak (20W RMS) 4x6” 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 60 watts Peak Each, 20 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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found car based on your search
Fits your 630CSi
62
List price $146.74
-40% $87.49

In stock

Add to Cart

• 60 watts Peak Each, 20 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

MTX TERMINATOR46 with Sound Damping

160W Peak (80W RMS) 4x6” Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TERMINATOR46_SDBSK2 big
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MTX TERMINATOR46 with Sound Damping

160W Peak (80W RMS) 4x6” Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 1" Mylar Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.1 dB

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49
List price $83.69
-16% $69.94

In stock

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• 80 watts Peak Each, 40 watts RMS Each
• 1" Mylar Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.1 dB

Pioneer TS-G4620S with Sound Damping

400W Max (60W RMS) 4x6" G-Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TSG4620S_SDBSK2 big
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Pioneer TS-G4620S with Sound Damping

400W Max (60W RMS) 4x6" G-Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 200 watts Peak Each, 30 watts RMS Each
• 1-3/16" Polyethylene Terephthalate (PET) Balanced Dome tweeters
• Injection-molded Polypropylene with MICA cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Fits your 630CSi
52
List price $83.74
-36% $53.18

In stock

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• 200 watts Peak Each, 30 watts RMS Each
• 1-3/16" Polyethylene Terephthalate (PET) Balanced Dome tweeters
• Injection-molded Polypropylene with MICA cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Hifonics ZS46CX with Sound Damping

400W Peak (80W RMS) Zeus Series 4x6" Zeus Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

ZS46CX_SDSK2 big
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Hifonics ZS46CX with Sound Damping

400W Peak (80W RMS) Zeus Series 4x6" Zeus Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 200 Watts Max Each, 40 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 630CSi
69
List price $43.73
-18% $35.99

In stock

Add to Cart

• 200 Watts Max Each, 40 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

Hifonics ZS46CX (2-Pairs, 4-Total)

800W Peak (160W RMS) Zeus Series 4x6" Zeus Series 2-Way Coaxial Car Speakers (2-Pairs)

ZS46CX_2 big
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Hifonics ZS46CX (2-Pairs, 4-Total)

800W Peak (160W RMS) Zeus Series 4x6" Zeus Series 2-Way Coaxial Car Speakers (2-Pairs)

• 200 Watts Max Each, 40 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Fits your 630CSi
23
List price $49.98
-16% $42.00

In stock

Add to Cart

• 200 Watts Max Each, 40 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

JBL CLUB 644F (2-Pairs, 4-Total)

480W Peak (160W RMS) 4x6" Club Series 3-ohms 2-way Coaxial Car Speakers (2-Pairs)

CLUB644F_2 big
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JBL CLUB 644F (2-Pairs, 4-Total)

480W Peak (160W RMS) 4x6" Club Series 3-ohms 2-way Coaxial Car Speakers (2-Pairs)

• 120 watts Peak Each, 40 watts RMS Each
• Silk Dome Tweeters
• Injection Molded Polypropylene with UV Protection cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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Fits your 630CSi
List price $259.90
-23% $199.90

In stock

Add to Cart

• 120 watts Peak Each, 40 watts RMS Each
• Silk Dome Tweeters
• Injection Molded Polypropylene with UV Protection cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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Infinity Kappa 463XF with Installation Accessories

120W RMS 4"x6" 2-way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

Kappa 463XF, FRING46, SDSK2, SDRLR1, BTK106 big
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Infinity Kappa 463XF with Installation Accessories

120W RMS 4"x6" 2-way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 180 watts Peak Each, 60 watts RMS Each
• 1" Silk Edge-driven Dome Tweeters
• Glass Fiber 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 the following location in your 630CSi
  • Car Speakers
113
List price $343.66
-30% $241.51 /pair

Available

Ships in 10-14 days

Add to Cart

• 180 watts Peak Each, 60 watts RMS Each
• 1" Silk Edge-driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Crunch CS46CX (2-Pairs, 4-Total)

1000W Max (500W RMS) 4x6" CS Series 2-Way Coaxial Car Speakers (2-Pairs)

CS46CX_2 big
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Crunch CS46CX (2-Pairs, 4-Total)

1000W Max (500W RMS) 4x6" CS Series 2-Way Coaxial Car Speakers (2-Pairs)

• 250W Max each / 125W RMS each
• Neo Mylar Soft Dome Tweeter
• Impedance: 4 ohm
• Cellulose Cone and Rubber Surround

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11
List price $51.98
-8% $47.98

Available

Ships in 10-14 days

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• 250W Max each / 125W RMS each
• Neo Mylar Soft Dome Tweeter
• Impedance: 4 ohm
• Cellulose Cone and Rubber Surround

Rockford Fosgate Punch P1462 (Open Box, Great)

140W Peak (70W RMS) 4x6” Punch Series 2-way 4-ohm Coaxial Car Speakers

P1462 big
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Rockford Fosgate Punch P1462 (Open Box, Great)

140W Peak (70W RMS) 4x6” Punch Series 2-way 4-ohm Coaxial Car Speakers

• 70 watts Peak Each, 35 watts RMS Each
• 3/4" 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 the following location in your 630CSi
  • Car Speakers
37
List price $109.99
-15% $93.49 /pair

In stock

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    FAQ for Speakers in 1978 630CSi

    Q: Can I upgrade or change the Speakers in 1978 BMW 630CSi?

    A: Yes this page includes all the best Speakers that work in your 630CSi.

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    1978 BMW 630CSi

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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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