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DS18 PRO-X8MSE with Speaker Installation Kit

350W RMS 8" 4-Ohm Midrange Speakers + 8" Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

(2)PRO-ZXI8.4BM, XBAF8, SDSK2, SDRLR1, BTK106 big
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350W RMS 8" 4-Ohm Midrange Speakers + 8" Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• 700 watts Peak Each, 350 watts RMS Each
• Aluminum Bullet Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99 dB

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Install kits available for most vehicles

found car based on your search
Fits your 640i
141
List price $308.69
-24% $233.90

In stock

• 700 watts Peak Each, 350 watts RMS Each
• Aluminum Bullet Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99 dB

Infinity REF407F with Sound Damping

210W Peak (70W RMS) 4" Reference Series 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

REF407F_SDSK2 big
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210W Peak (70W RMS) 4" Reference Series 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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Fits select locations in your 640i.
Add vehicle details to confirm exact location.
47
List price $158.69
-21% $124.94

In stock

• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

DS18 PRO-ZT8 with Speaker Installation Kit

Includes: (2) 8” Mid-Range Loudspeaker, 2 Piece Silicone Rubber Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

PRO-ZT8, XBAF8, SDRLR1, SDSK2, BTK106 big
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Includes: (2) 8” Mid-Range Loudspeaker, 2 Piece Silicone Rubber Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 550 watts Max, 275 watts RMS
• 1" Aluminum Bullet Tweeter
• Impedance: 4 ohm
• Sensitivity: 98 dB
• Mounting Depth: 3.58"

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Install kits available for most vehicles

found car based on your search
Fits your 640i
141
List price $310.61
-12% $273.71

In stock

• 550 watts Max, 275 watts RMS
• 1" Aluminum Bullet Tweeter
• Impedance: 4 ohm
• Sensitivity: 98 dB
• Mounting Depth: 3.58"

Cerwin-Vega CVP8 with Sound Damping

350W Peak (170W RMS) 8” PRO Series Full Range Coaxial Car Speaker + NVX SDSK2 Sound Damping

CVP8_SDSK2 big
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350W Peak (170W RMS) 8” PRO Series Full Range Coaxial Car Speaker + NVX SDSK2 Sound Damping

• 350 watts Peak Each, 170 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 95 dB

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found car based on your search
Fits your 640i
47
List price $78.73
-17% $64.98

In stock

• 350 watts Peak Each, 170 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 95 dB

Infinity REF407F (2-Pairs, 4-Total)

420W Peak (140W RMS) 4" Reference Series 2-way 3-ohm Coaxial Speakers (2-Pairs)

REF407F_2 big
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420W Peak (140W RMS) 4" Reference Series 2-way 3-ohm Coaxial Speakers (2-Pairs)

• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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additional information required
Fits select locations in your 640i.
Add vehicle details to confirm exact location.
List price $279.90
-21% $219.90

In stock

Only 3 Left!

• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

JBL Stage3 427F (STAGE3427FAM) with Sound Damping

300W Peak (60W RMS) 4" Stage3 Series 2-way 3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

STAGE3427FAM_SDBSK2 big
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300W Peak (60W RMS) 4" Stage3 Series 2-way 3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 30 watts RMS Each
• Edge-driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB

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shipping truck icon Free shipping in USA. Provide zip for delivery date.
additional information required
Fits select locations in your 640i.
Add vehicle details to confirm exact location.
50
List price $108.69
-22% $84.94

In stock

Only 1 Left!

• 150 watts Peak Each, 30 watts RMS Each
• Edge-driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB

DS18 PRO-GM8 with Sound Damping

580W Peak (190W RMS) 8" PRO-GM Series 8-ohm Midrange Car Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROGM8_SDBSK2 big
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580W Peak (190W RMS) 8" PRO-GM Series 8-ohm Midrange Car Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 580 watts Peak Each, 190 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 93 dB

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found car based on your search
Fits your 640i
47
List price $60.73
-25% $45.44

In stock

Only 1 Left!

• 580 watts Peak Each, 190 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 93 dB

DS18 PRO-X8.4M (Sold Individually) with Sound Damping

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROX84M_SDBSK2 big
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550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 550 watts Peak Each, 275 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 640i
47
List price $83.69
-10% $75.44

In stock

• 550 watts Peak Each, 275 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

DS18 PRO-X8BM (Sold Individually) with Sound Damping

500W Peak (275W RMS) 8” PRO-X Series 8-ohm Mid-Range Bullet Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROX8BM_SDBSK2 big
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500W Peak (275W RMS) 8” PRO-X Series 8-ohm Mid-Range Bullet Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 550 watts Peak Each, 275 watts RMS Each
• Red tweeter
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 640i
47
List price $89.69
-9% $81.44

In stock

Only 3 Left!

• 550 watts Peak Each, 275 watts RMS Each
• Red tweeter
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96 dB

DS18 PRO-SM8.2 (Sold Individually) with Sound Damping

500W Peak (250W RMS) 8” PRO-SM Series 2-ohm Water-Resistant Shallow Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROSM82_SDBSK2 big
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500W Peak (250W RMS) 8” PRO-SM Series 2-ohm Water-Resistant Shallow Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 500 watts Peak Each, 250 watts RMS Each
• Water Resistance Paper material
• Impedance: 2 ohm
• Sensitivity: 97 dB

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found car based on your search
Fits your 640i
47
List price $96.69
-9% $88.44

In stock

• 500 watts Peak Each, 250 watts RMS Each
• Water Resistance Paper material
• Impedance: 2 ohm
• Sensitivity: 97 dB

DS18 ZXI-44 with Sound Damping

300W Peak (100W RMS) 4" ZXI Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

ZXI44_SDBSK2 big
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300W Peak (100W RMS) 4" ZXI Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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additional information required
Fits select locations in your 640i.
Add vehicle details to confirm exact location.
47
List price $99.69
-8% $91.44

In stock

Only 1 Left!

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 PRO-ZXI8M (Sold Individually) with Sound Damping

700W Peak (350W RMS) 8" ZXi Series 8-Ohm Midrange Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROZXI8M_SDBSK2 big
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700W Peak (350W RMS) 8" ZXi Series 8-Ohm Midrange Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 700 watts Peak Each, 350 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 99 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 640i
47
List price $93.69
-9% $85.44

In stock

• 700 watts Peak Each, 350 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 99 dB

Rockford Fosgate Prime R14X2 with Sound Damping

120W Peak (60W RMS) 4” Prime Series 2-way 4-ohm Coaxial Car Speaker + NVX SDBSK2 Premium Sound Damping

R14X2_SDBSK2 big
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120W Peak (60W RMS) 4” Prime Series 2-way 4-ohm Coaxial Car Speaker + NVX SDBSK2 Premium Sound Damping

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome tweeters
• Vacuum polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
additional information required
Fits select locations in your 640i.
Add vehicle details to confirm exact location.
61
List price $83.73
$79.98

In stock

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome tweeters
• Vacuum polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

DS18 PRO-X8.4BMPK (2-Pairs, 4-Total)

2200W Peak (1100W RMS) 8” PRO-X Series High Wattage Mid and High Range Package w/Bullet Tweeter (2-Pairs)

PROX84BMPK_2 big
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2200W Peak (1100W RMS) 8” PRO-X Series High Wattage Mid and High Range Package w/Bullet Tweeter (2-Pairs)

• 550 watts Max Each, 275 watts RMS Each
• 1" Aluminum Bullet Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 103 dB
• Mounting Depth: .27"

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found car based on your search
Fits your 640i
2
$335.90

In stock

Only 3 Left!

• 550 watts Max Each, 275 watts RMS Each
• 1" Aluminum Bullet Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 103 dB
• Mounting Depth: .27"

Alpine S2-S80C with Installation Accessories

520W Peak (170W RMS) 8" S-Series 2-way Component Speaker System

S2S80C_ACC_KIT big
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520W Peak (170W RMS) 8" S-Series 2-way Component Speaker System

• 260 watts Peak Each, 85 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 80 dB

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Install kits available for most vehicles

found car based on your search
Fits your 640i
141
List price $372.71
-23% $285.76 /set

In stock

• 260 watts Peak Each, 85 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 80 dB

NVX VSP4 (2-Pairs, 4-Total)

900W Peak (300W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters (2-Pairs)

VSP4_2 big
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900W Peak (300W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters (2-Pairs)

• 225 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

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additional information required
Fits select locations in your 640i.
Add vehicle details to confirm exact location.
17
List price $143.98
-21% $113.98

In stock

• 225 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

Hertz CX 100 with Speaker Installation Kit

4" Cento Series 2-Way Coaxial Car Speakers + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

CX 100, FRING4, SDSK2, SDRLR1, BTK106 big
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4" Cento Series 2-Way Coaxial Car Speakers + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• 60 Watts Max Each, 20 Watts RMS Each
• Semi-pressed paper + Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 1-3/4"

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Install kits available for most vehicles

additional information required
Fits select locations in your 640i.
Add vehicle details to confirm exact location.
147
List price $331.71
-14% $286.52 /pair

In stock

• 60 Watts Max Each, 20 Watts RMS Each
• Semi-pressed paper + Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 1-3/4"

DS18 PRO-ZXI8.4BM (Pair)

1400W Peak (700W RMS) 8" ZXi Series 4-Ohm Midrange Car Speakers (Pair)

PROZXI84BM_2 big
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1400W Peak (700W RMS) 8" ZXi Series 4-Ohm Midrange Car Speakers (Pair)

• 700 watts Peak Each, 350 watts RMS Each
• Aluminum Bullet Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 640i
List price $225.98
-17% $187.90

In stock

• 700 watts Peak Each, 350 watts RMS Each
• Aluminum Bullet Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99 dB

DS18 PRO-X8.4BM with Speaker Installation Kit

Includes: (2) 8” Mid-Range Loudspeaker, 2 Piece Silicone Rubber Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

(2) PRO-X8.4BM, XBAF8, SDRLR1, SDSK2, BTK106 big
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Includes: (2) 8” Mid-Range Loudspeaker, 2 Piece Silicone Rubber Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 500 watts Peak
• 275 watts RMS
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.11"

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 640i
  • Under Front Seat
142
List price $224.61
-16% $187.90

In stock

Only 3 Left!

• 500 watts Peak
• 275 watts RMS
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.11"

DS18 PRO-GM8.4 (2-Pack)

580W Peak (190W RMS Each) 8" PRO-GM Series 4-Ohm Midrange Car Speakers

(2)PRO-GM8.4 big
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580W Peak (190W RMS Each) 8" PRO-GM Series 4-Ohm Midrange Car Speakers

• 580 watts Peak Each, 190 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits your 640i
List price $69.90
$67.80

In stock

Only 2 Left!

• 580 watts Peak Each, 190 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

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    FAQ for Speakers in 2014 640i

    Q: Can I upgrade or change the Speakers in 2014 BMW 640i?

    A: Yes this page includes all the best Speakers that work in your 640i.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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