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  3. Earthquake Sound Car Audio & Electronics
  4. Earthquake Sound Car Speakers

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Products in these categories contain items that carry a guarantee to fit your BMW 528i (change vehicle)
Thumbnail icon for All Earthquake Sound Car Speakers

All Earthquake Sound Car Speakers

Earthquake Sound All Car Speakers deliver consistent, superior sound across all models.

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Earthquake Sound Speaker Installation & Accessories

Thumbnail icon for Earthquake Sound 6.5" Speakers

Earthquake Sound 6.5" Speakers

Earthquake Sound 6.5" Speakers feature advanced technology for crystal-clear sound.

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Earthquake Sound 6x9" Speakers

Enjoy expansive audio coverage with deep bass from Earthquake Sound's 6x9" Speakers.

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Earthquake Sound 8" Speakers

Thumbnail icon for Earthquake Sound Midbass Drivers & Midrange Speakers

Earthquake Sound Midbass & Midrange Speakers

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Earthquake Sound Pro Audio Tweeters

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Earthquake Sound Pro Audio Midrange Drivers

Pro & Full-Range Drivers from Earthquake Sound deliver exceptional audio quality.

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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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Earthquake Sound EQ8-S8

500W Peak 8” EQ Series 8-ohm Mid-Bass Car Speakers

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Earthquake Sound EQ8-S8

500W Peak 8” EQ Series 8-ohm Mid-Bass Car Speakers

• 250 watts Peak Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96.3 dB

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Install kits available for most vehicles

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Fits your 528i
List price $99.00
-39% $59.99

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Earthquake Sound EQ8-4 (Sold Individually)

250W Peak 8” EQ Series 4-ohm Midbass Car Speaker

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Earthquake Sound EQ8-4 (Sold Individually)

250W Peak 8” EQ Series 4-ohm Midbass Car Speaker

• 250 watts Peak Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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Install kits available for most vehicles

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List price $85.00
-35% $54.99

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Earthquake Sound EQ800NEO (Sold Individually)

600W Peak (300W RMS) 8" EQ NEO Series Pro Audio Midrange 8-ohm Car and PA Speaker

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Earthquake Sound EQ800NEO (Sold Individually)

600W Peak (300W RMS) 8" EQ NEO Series Pro Audio Midrange 8-ohm Car and PA Speaker

• 600 watts Peak, 300 watts RMS
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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Install kits available for most vehicles

found car based on your search
Fits your 528i
$225.00

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Earthquake Sound EQ8-8 (Sold Individually)

250W Peak 8” EQ Series 8-ohm Midbass Car Speaker

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Earthquake Sound EQ8-8 (Sold Individually)

250W Peak 8” EQ Series 8-ohm Midbass Car Speaker

• 250 watts Peak Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94.1 dB

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Install kits available for most vehicles

found car based on your search
Fits your 528i
List price $90.00
-28% $64.99

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Earthquake Sound BT44S

150W Peak 4-ohm Pro Audio Horn-Loaded Bullet Tweeters

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Earthquake Sound BT44S

150W Peak 4-ohm Pro Audio Horn-Loaded Bullet Tweeters

• Pro-Audio Horn-Loaded Bullet Tweeters
• 150 watts Peak Each
• 4 ohm Impedance

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$39.00

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• Pro-Audio Horn-Loaded Bullet Tweeters
• 150 watts Peak Each
• 4 ohm Impedance

Earthquake Sound HDX2

250W Peak (150W RMS) 1" 8-ohm Pro Audio Compression Driver

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Earthquake Sound HDX2

250W Peak (150W RMS) 1" 8-ohm Pro Audio Compression Driver

• 1" Pro-Audio Compression Driver
• 250 watts Peak Each
• 150 watts RMS Each
• 8 ohm Impedance

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Universal Icon Universal – fits most vehicles.

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$89.00

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• 1" Pro-Audio Compression Driver
• 250 watts Peak Each
• 150 watts RMS Each
• 8 ohm Impedance

Earthquake Sound SBT-200

200W Peak (150W RMS) 8-ohm Pro Audio Super Bullet Tweeters

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Earthquake Sound SBT-200

200W Peak (150W RMS) 8-ohm Pro Audio Super Bullet Tweeters

• Pro-Audio Super Bullet Tweeters
• 200 watts Peak Each
• 100 watts RMS Each
• 8 ohm Impedance

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Universal Icon Universal – fits most vehicles.

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$65.00

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• Pro-Audio Super Bullet Tweeters
• 200 watts Peak Each
• 100 watts RMS Each
• 8 ohm Impedance

Earthquake Sound BT90S

300W Peak 4-ohm Pro Audio Horn-Loaded Bullet Tweeters

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Earthquake Sound BT90S

300W Peak 4-ohm Pro Audio Horn-Loaded Bullet Tweeters

• Pro-Audio Horn-Loaded Bullet Tweeters
• 300 watts Peak Each
• 4 ohm Impedance

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VIP Product Get $6.50 in rewards to spend later

Universal Icon Universal – fits most vehicles.

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$65.00

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• Pro-Audio Horn-Loaded Bullet Tweeters
• 300 watts Peak Each
• 4 ohm Impedance

 
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    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
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    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
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    Back

    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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