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- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
Massive Audio HIPPO H124XR 12” 3000W RMS | 6000W Max SPL Competition Mega 70 lb Car Subwoofer Dual 4-OhmMassive Audio H124XR 12 Elite Mega Subwoofer 3000 W RMS 6000 W Peak Dual 4 (4 Voice Coil) The Massive Audio H124XR is a high performance 12 subwoofer engineered for competition level audio setups. With a massive 377 oz strontium magnet, rigid cast aluminum basket, and cutting edge components like a Kevlar reinforced cone and dual Nomex spiders, this 70 lb powerhouse delivers powerful, precise lows with extreme excursion and long term reliability. Key
Massive Audio H124XR – 12″ Elite Mega Subwoofer – 3000 W RMS / 6000 W Peak – Dual 4 Ω (4″ Voice Coil)The Massive Audio H124XR is a high-performance 12″ subwoofer engineered for competition-level audio setups. With a massive 377-oz strontium magnet, rigid cast-aluminum basket, and cutting-edge components like a Kevlar-reinforced cone and dual Nomex spiders, this 70-lb powerhouse delivers powerful, precise lows with extreme excursion and long-term reliability.
Key Features
- Power Handling: 3000 W RMS / 6000 W Peak
- Voice Coil: 4″ Dual 4 Ω on anodized aluminum former with Kevlar spun-lace
- Magnet: 377 oz double-stack strontium motor
- Cone & Suspension: Kevlar-reinforced non-pressed paper cone, mirrored Nomex spiders, tall-narrow foam surround, red stitching
- Basket & Cooling: Cast-aluminum vented basket, back-plate cooling, heavy-gauge direct leads
- Xmax: ~21.6 mm excursion
- Sensitivity: ~93.5 dB SPL @ 1 W/1 m
- Weight: Over 70 lb—handle with care
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 1459 reviews
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Product Reviews
★★★★★ 5
Great product
Size: 36 sqft
Easy to apply, made a big difference in sound deadening on side by side. Would definitely purchase again.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
AS GOOD AS ANY OTHER, WORKS GREAT
Size: 36 sqft, Size: 36 sqft
Used this in my 17 RAM 1500. This stuff works great, just as good as S...ss brand that is also sold on here. Same thickness and same tackiness. And this stuff sticks like crazy, once its laid down and rolled onto the surface, it is hard to remove, so I am pretty sure it will stay where I installed it. It is great value, one box was enough to do the whole roof of the truck with a little left over for small spots. I think it took a total of 2.5 boxes to do my whole crew cab, roof, floor and back wall and most of the firewall, and I also added a layer of their .25" foam. I do notice a difference in less outside noise, from wind and road. I will be doing my wife car soon, and this is the product I will be using again, I recommend this.
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Reviewed in the United States on January 14, 2026
★★★★★ 5
Dyna... who?
Size: 36 sqft
This stuff works great. Fraction of the cost to Dyna.. and just as good. Very sticky. Used in doors, floors and ceiling. Great product and performs flawlessly. I would highly recommend this.
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Reviewed in the United States on March 13, 2026
★★★★★ 4
Awesome, inexpensive alternative to name-brands!
Size: 36 sqft
Awesome. Stuck well with alcohol prep and time to let liquid flash-off. Very consistent, piece to piece. Backing peeled easily when desired. Compared to Amazon Basics, the butyl seemed a little thicker (infinitesimally) and stickier, foil was less thick than Amazon Basics. Very good value. Started with my nice car, but after completing project, sound dampened all cars in the immediate family it made such a noticeable difference in sound level and quality of music from soeakers. Recommended!
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Reviewed in the United States on October 21, 2025
★★★★★ 5
Easy to use
Size: 36 sqft, Size: 36 sqft
Very good and easy to use, made my 88 Chevy feel better
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Reviewed in the United States on June 2, 2026