American Bass XMAXXX Monster 15" 4000W RMS | 8000W Max Xmax SPL Competition 
Subwoofer 2-Ohm DVC
SKU: 87148211221

American Bass XMAXXX Monster 15" 4000W RMS | 8000W Max Xmax SPL Competition Subwoofer 2-Ohm DVC

Sale price$396.75 Regular price$440.83
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Ships within 48 hours · Estimated delivery Jul 3 - Jul 8

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Description

American Bass XMAXXX Monster 15" 4000W RMS | 8000W Max Xmax SPL Competition Subwoofer 2-Ohm DVCThe American Bass XMAXXX Monster has arrived, and it is ready to dominate any car audio system. With an iconic look and a serious build usually reserved for the pros, this subwoofer won't disappoint. The perfect balance of fit, finish, and functionality of the XMAXXX will guarantee that your audio system will benefit from the added performance of true power this sub provides. The blue powder coated basket and matching surround with blue stitching give


The American Bass XMAXXX Monster has arrived, and it is ready to dominate any car audio system. With an iconic look and a serious build usually reserved for the pros, this subwoofer won't disappoint. The perfect balance of fit, finish, and functionality of the XMAXXX will guarantee that your audio system will benefit from the added performance of true power this sub provides.

The blue powder-coated basket and matching surround with blue stitching give this subwoofer a classic look and will draw attention from any who passes by your ride. But looks aren't everything and that's why the powerful voice coil on these subs is sure to turn up your sound output. You'll have 3,500 watts RMS in the 12" version or 4,000 watts RMS in the 15" version - both of which are absolute beasts when it comes to power.

So if you're looking to add some serious high-powered bass to your vehicle, then grab an American Bass XMAXXX Monster today! It's sure to give you superior performance no matter what kind of music you play or what kind of environment you find your car audio system in. Your neighbors won't be happy, but that's alright - with the Monster installed you’ll have the meanest car audio system on the block.

Dual Voice Coil, 4000 Watts RMS/ 8000 Watts Max, FAT Surround!

  • RMS Power: 4000W
  • Max Power: 8000W
  • Impedance: Dual 2 Ohm
  • Sensitivity: 87.5dB
  • Mounting Depth: 10.8"
  • Cutout Size: 14.4"
  • Ported Box: 3.824 ft^3
  • Magnet Size: 501 oz.
  • Voice Coil Size: 4"
  • Basket Type: Cast

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 87148211221

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4.1 ★★★★★
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Tharin
Fort Morgan, US
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ. Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that. Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2025
H
Verified Purchase
Harvey
Fort Morgan, US
★★★★★ 5
Good stuff, but watch the temp
Model: NewSLS50_52
I used this in my single cab pickup truck (89 ford.) It only took half the box (10 sheets or 25 square feet) to do the floors, but I bought the big box because I plan to do the doors, back wall, and maybe the roof as well. One thing I learned is that the temperature matters when you’re doing the installation. It was around 55F when I started in the evening, and when it dipped down into the 40s the sheets would not stick to the metal, and were hard to compress with the roller. That’s why I ended up only doing the floors and not any vertical surfaces; i will have to wait for a nice hot day. The other thing is that the foil layer on top is razor sharp at the edges, definitely wear gloves! I didn’t notice until after but I have little papercuts all over my fingers. Aside from those things, the install was easy and straightforward. The sheets cut easily with scissors, and any goo that ends up on your hands or scissors can be cleaned up with acetone (nail polish remover), or lacquer thinner. I would use this stuff again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 16, 2023
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Verified Purchase
Lyrah
Grantham, US
★★★★★ 5
Very efficient!
Model: NewSLS50_52
Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!
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Reviewed in the United States on November 23, 2025
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Verified Purchase
Beth
Houston, US
★★★★★ 5
Great option for a great price
Size: 7.5, Color: Black
I love these sandals. They are well made, true to size and soft suede. They are lightweight and feel just like my UGG goldenstar sandals. (These are not as adjustable, so if you have narrow or wide feet, these may not be for you) These a great value for the money, especially for medium width feet. The strap across the toe is not adjustable, but fit my feet just fine. The ankle strap was a good length for me. And the Velcro is strong. These sandals are a great value for the money. I will probably start looking into kookaburra before I rush to buy the more expensive ones now.
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Reviewed in the United States on May 5, 2026
N
Verified Purchase
Never received!! Very disappointed!!
New York, US
★★★★★ 5
Quality, good looking shoes!
Size: 8.5, Color: Green
Absolutely perfect fit, design, and color. I'm so pleased with these sandals and as always with this brand, I am not in anyway disappointed. These shoes are so comfortable right out of the box. They clean up very nicely, and last forever. I am so glad I got these before they were sold out.
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Reviewed in the United States on April 30, 2026

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