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  1. Home
  2. Diamond Audio Store
  3. Diamond Audio Car Audio & Electronics
  4. Diamond Audio Car Subwoofers
  5. Diamond Audio Underseat Subwoofers

Diamond Audio Underseat Subwoofers for your 2022 A4 Quattro close

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Number of Subwoofers
This value represents the number of subwoofers that the enclosure accommodates or that are included in the package or bundled kit.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Total RMS Power Handling
This is the total RMS power handling of all the subwoofers included in the package or enclosure.

If the loaded enclosure or amplifier and subwoofer package includes more than a single subwoofer, then this is the total RMS power handling for all of the subs combined.

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 giving your subwoofer(s) 75% - 90% of the recommended RMS rating.
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Diamond Audio DPUS12

400W Peak (200W RMS) Loaded 12" Amplified Sealed Underseat Subwoofer Enclosure with Bass Remote

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Diamond Audio DPUS12

400W Peak (200W RMS) Loaded 12" Amplified Sealed Underseat Subwoofer Enclosure with Bass Remote

• 12" Amplified Loaded Subwoofer System
• 200 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired remote bass level controller

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$499.99

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Only 2 Left!

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Diamond Audio DPUS8

250W Peak (100W RMS) Loaded Single 8" Sealed Amplified Slim Enclosure

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Diamond Audio DPUS8

250W Peak (100W RMS) Loaded Single 8" Sealed Amplified Slim Enclosure

• 8" Amplified Loaded Subwoofer System
• 100 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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Universal Icon Universal – fits most vehicles.

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$249.99

In stock.

Add to Cart

• 8" Amplified Loaded Subwoofer System
• 100 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Diamond Audio DPRS10

300W Peak (150W RMS) Loaded Single 10" Sealed Amplified Underseat Enclosure

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Diamond Audio DPRS10

300W Peak (150W RMS) Loaded Single 10" Sealed Amplified Underseat Enclosure

• 10" Amplified Loaded Subwoofer System
• 150 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Input

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$389.99

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Add to Cart

• 10" Amplified Loaded Subwoofer System
• 150 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Input

Diamond Audio DPAS10

300W Peak (150W RMS) Loaded Single 10" Amplified Sealed Subwoofer Enclosure

DPAS10 big
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Diamond Audio DPAS10

300W Peak (150W RMS) Loaded Single 10" Amplified Sealed Subwoofer Enclosure

• 10" Amplified Loaded Subwoofer System
• 150 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $40.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$399.99

In stock.

Add to Cart

• 10" Amplified Loaded Subwoofer System
• 150 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Diamond Audio DPUS10

400W Peak (200W RMS) Loaded Single 10" Sealed Underseat Enclosure with Bass Remote

DPUS10 big Out of stock
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DPUS10

400W Peak (200W RMS) Loaded Single 10" Sealed Underseat Enclosure with Bass Remote

• 10" Amplified Loaded Subwoofer System
• 200 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

VIP Star Icon

VIP Product Get $44.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$439.99
Add to Cart

• 10" Amplified Loaded Subwoofer System
• 200 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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

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