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  1. Home
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  3. Speakers with Sound Deadening

Speakers with Sound Deadening for your 2012 640i 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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Pioneer TS-A1081F with Sound Damping

460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TSA1081F_SDBSK2 big
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Pioneer TS-A1081F with Sound Damping

460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 230 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Hard Dome tweeters
• Carbon and Mica Reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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51
List price $128.74
-18% $104.99

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• 230 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Hard Dome tweeters
• Carbon and Mica Reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Cerwin Vega XED42 with Sound Damping

500W Peak (40W RMS) 4" XED Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

XED42_SDSK2 big
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Cerwin Vega XED42 with Sound Damping

500W Peak (40W RMS) 4" XED Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 250 watts Peak Each, 20 watts RMS Each
• 1" Metallic Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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52
List price $66.73
-18% $54.98

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• 250 watts Peak Each, 20 watts RMS Each
• 1" Metallic Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

NVX - Worth the Envy - Direct to Consumer Car Audio

Kenwood KFC-1066S with Sound Damping

440W Peak (42W RMS) 4" Sport Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

KFC1066S_SDBSK2 big
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Kenwood KFC-1066S with Sound Damping

440W Peak (42W RMS) 4" Sport Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 220 watts Peak Each, 21 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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52
List price $98.74
-40% $59.49

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• 220 watts Peak Each, 21 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 PRO-GM8.4 (Sold Individually) with Sound Damping

580W Peak (190W RMS) 8" PRO-GM Series 4-Ohm Midrange Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROGM84_SDBSK2 big
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DS18 PRO-GM8.4 (Sold Individually) with Sound Damping

580W Peak (190W RMS) 8" PRO-GM Series 4-Ohm Midrange Loudspeaker + NVX SDBSK2 Premium Sound Damping

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

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List price $53.69
-15% $45.44

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

Limited time!

NVX NSP4 with Sound Damping

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP4_SDBSK2 big
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NVX NSP4 with Sound Damping

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

Purchase $400 or More of NVX and Save 15%!
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73
List price $78.73
-30% $55.48

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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: 1.88"

Limited time!

NVX VSP4 with Sound Damping

450W Peak (150W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

VSP4_SDBSK2 big
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NVX VSP4 with Sound Damping

450W Peak (150W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 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"

Purchase $400 or More of NVX and Save 15%!
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65
List price $90.73
-22% $70.48

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• 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 Sound Damping

240W Peak (80W RMS) 4" Cento Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

CX100_SDSK2 big
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Hertz CX 100 with Sound Damping

240W Peak (80W RMS) 4" Cento Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 120 watts Peak Each, 40 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• Semi-Pressed Paper + Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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52
List price $278.74
-5% $264.98

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• 120 watts Peak Each, 40 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• Semi-Pressed Paper + Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Cerwin-Vega PH84 with Speaker Installation Kit

360W RMS 8” Full-Range Speakera + 8” Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

PH84, XBAF8, SDSK2, SDRLR1, BTK106 big
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Cerwin-Vega PH84 with Speaker Installation Kit

360W RMS 8” Full-Range Speakera + 8” Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

• 360 watts Peak Each, 180 watts RMS Each
• Horn Tweeters
• cone material
• Impedance: 4 ohm
• Sensitivity: 103 dB

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144
List price $346.70
-23% $265.99 /pair

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• 360 watts Peak Each, 180 watts RMS Each
• Horn Tweeters
• cone material
• Impedance: 4 ohm
• Sensitivity: 103 dB

Deaf Bonce Apocalypse AP-W81AC with Installation Accessories

1000W Peak (500W RMS) 8" Apocalypse Series Mid-Range Speakers

APW81AC_ACC_KIT big
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Deaf Bonce Apocalypse AP-W81AC with Installation Accessories

1000W Peak (500W RMS) 8" Apocalypse Series Mid-Range Speakers

• 500 watts Peak Each, 250 watts RMS Each
• Steel frame basket
• Paper cone material
• Impedance: 4 ohm
• Copper voice coil wire

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142
List price $272.61
-14% $235.71 /pair

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• 500 watts Peak Each, 250 watts RMS Each
• Steel frame basket
• Paper cone material
• Impedance: 4 ohm
• Copper voice coil wire

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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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

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

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142
List price $310.61
-12% $273.71

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

Cerwin-Vega PH84 with Sound Damping

720W Peak (360W RMS) 8” Pro Series Full-Range Coaxial Speakers + NVX SDSK2 Sound Damping

PH84_SDSK2 big
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Cerwin-Vega PH84 with Sound Damping

720W Peak (360W RMS) 8” Pro Series Full-Range Coaxial Speakers + NVX SDSK2 Sound Damping

• 360 watts Peak Each, 180 watts RMS Each
• Horn Tweeters
• Impedance: 4 ohm
• Sensitivity: 103 dB

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50
List price $282.73
-17% $234.98

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• 360 watts Peak Each, 180 watts RMS Each
• Horn Tweeters
• Impedance: 4 ohm
• Sensitivity: 103 dB

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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DS18 PRO-X8MSE with Speaker Installation Kit

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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142
List price $308.69
-24% $233.90

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

Alpine S2-S40 with Installation Accessories

280W Peak (90W RMS) 4" S-Series 2-way Coaxial Car Speakers

S2-S40, FRING4, SDSK2, SDRLR2, BTK106 big
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Alpine S2-S40 with Installation Accessories

280W Peak (90W RMS) 4" S-Series 2-way Coaxial Car Speakers

• 140 watts Peak Each, 45 watts RMS Each
• 3/4" 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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146
List price $201.71
-27% $146.48 /pair

In stock

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• 140 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 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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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

• 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

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  • Under Front Seat
143
List price $224.61
-16% $187.90

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

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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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

• 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"

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Install kits available for most vehicles

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148
List price $331.71
-14% $286.52 /pair

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• 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"

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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Alpine S2-S80C with Installation Accessories

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

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143
List price $372.71
-23% $285.76 /set

In stock

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

DS18 PRO-X8.4BMRGB 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-X8.4BMRGB, XBAF8, SDSK2, BTK106 big
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DS18 PRO-X8.4BMRGB 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

• 550 watts Max
• 275 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.18"

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Install kits available for most vehicles

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142
List price $238.61
-15% $201.90

In stock

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• 550 watts Max
• 275 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.18"

DS18 EN-JS6/WH with Speaker Installation Kit

Includes: 8” Mid/High Range Loudspeaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

PRO-X8.4BMPK, XBAF8, SDRLR1, SDSK2, BTK106 big
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DS18 EN-JS6/WH with Speaker Installation Kit

Includes: 8” Mid/High Range Loudspeaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 790W RMS 8” PRO-X Series High Wattage Mid and High Range Package w/ Bullet Tweeter
• 2 Piece Foam Speaker Ring Kit
• 1.38 Square Feet of Sound Damping
• Sound Dampening Rubber Roller
• Installer Panel Removal Tool Kit

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144
List price $250.66
-15% $213.76

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• 790W RMS 8” PRO-X Series High Wattage Mid and High Range Package w/ Bullet Tweeter
• 2 Piece Foam Speaker Ring Kit
• 1.38 Square Feet of Sound Damping
• Sound Dampening Rubber Roller
• Installer Panel Removal Tool Kit

DS18 PRO-X8M with Speaker Installation Kit

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

(2) PRO-X8M, XBAF8, SDSK2, SDRLR1 big
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DS18 PRO-X8M with Speaker Installation Kit

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

• 550 watts Max
• 275 watts RMS
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 98.2 dB
• Mounting Depth: 3.11"
• Sold individually

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115
List price $213.61
-17% $177.06

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Add to Cart

• 550 watts Max
• 275 watts RMS
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 98.2 dB
• Mounting Depth: 3.11"
• Sold individually

DS18 PRO-HY8.4B with Speaker Installation Kit

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

(2) PRO-SM8.2, XBAF8, SDSK2, BTK106 big
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DS18 PRO-HY8.4B with Speaker Installation Kit

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

• 250W RMS 8” PRO-SM Series Shallow Water Resistant Mid-Range Speaker
• 2 Piece Silicone Rubber Speaker Ring Kit
• 1.38 Square Feet of Sound Damping
• Installer Panel Removal Tool Kit
• Rubber Roller

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Install kits available for most vehicles

found car based on your search
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142
List price $238.61
-15% $201.90

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• 250W RMS 8” PRO-SM Series Shallow Water Resistant Mid-Range Speaker
• 2 Piece Silicone Rubber Speaker Ring Kit
• 1.38 Square Feet of Sound Damping
• Installer Panel Removal Tool Kit
• Rubber Roller

NVX - Worth the Envy - Direct to Consumer Car Audio
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    Why Use a Vehicle Fit Guide?
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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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