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  4. Earthquake Sound Speakers with Sound Deadening

Earthquake Sound Speakers with Sound Deadening for your 2012 528i xDrive close

Earthquake Sound Speakers with Sound Deadening provide an immersive audio experience.

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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.
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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Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

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Earthquake EQ8-8 with Installation Accessories

80W RMS 8” Midbass Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

(2)EQ8-8, XBAF8, SDSK2, SDRLR1, BTK106 big
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Earthquake EQ8-8 with Installation Accessories

80W RMS 8” Midbass Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 250 watts Max
• 80 watts RMS
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94.1 dB
• Mounting Depth: 3-1/2"

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Install kits available for most vehicles

found car based on your search
Fits your 528i xDrive
141
List price $262.71
-33% $175.79

In stock.

Add to Cart

• 250 watts Max
• 80 watts RMS
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94.1 dB
• Mounting Depth: 3-1/2"

Earthquake EQ8-S8 with Installation Accessories

110W RMS 8” Midbass Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

(2)EQ8-S8, XBAF8, SDSK2, SDRLR1, BTK106 big
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Earthquake EQ8-S8 with Installation Accessories

110W RMS 8” Midbass Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 250 watts Max
• 80 watts RMS
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96.3 dB
• Mounting Depth: 2-15/16"

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits your 528i xDrive
141
List price $280.71
-41% $165.79

In stock.

Add to Cart

• 250 watts Max
• 80 watts RMS
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96.3 dB
• Mounting Depth: 2-15/16"

Earthquake EQ8-4 with Installation Accessories

80W RMS 8” Midbass Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

(2)EQ8-4, XBAF8, SDSK2, SDRLR1, BTK106 big
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Earthquake EQ8-4 with Installation Accessories

80W RMS 8” Midbass Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 250 watts Max, 80 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB
• Mounting Depth: 3.5"

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits your 528i xDrive
141
List price $252.71
-38% $155.79

In stock.

Add to Cart

• 250 watts Max, 80 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB
• Mounting Depth: 3.5"

 
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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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