• Peak Power: 3000W
• RMS Power: 1500W
• Kevlar Fiber Enhanced Non-Pressed Paper Cone
• EROM Foam Surround with Red Stitching
Add a Belva MDFS1215 Sealed Subwoofer Enclosure to your Subwoofer purchase. Simply click the "Add Both to Cart" button.
Priced separately $519 98
Bundle Savings of $0 00
Total bundle price:
Overall rating distribution
By feature average rating
September 12, 2018
These subs POUND!
I had 2 15" Massive Audio GTX154 and switched to 2 of these 12" SUMMOXLs and they hit so freaking hard! My whole Jeep Patriot is flexing, almost afraid that the back window is going to blow out. Have them running on a 2000 watt Hifonics Brutus amp wired to 1 ohm in a ported Atrend SPL Bass box. You will not be disappointed in these subs.
February 23, 2018
Very very very pleased
These subs have a physical and auditorial presence that far exceeds any sub I have ever owned. I play them at volume 10 because everything in the car starts shaking at that point and they look good. Quality subs
August 31, 2020
I want to start by saying that the shipping was faster then I expected it to be and the product is “AWESOME” I am barley breaking them in and then sound amazing..... I was I little skeptical bout massive audio because I never use them but I am now a fan and want to see wat else’s there products are capable of.... I had 2 12 NVX that hit really good and hard but it was time for some new and louder and I found it.....I would definitely recommend this sub to anyone and I have not yet had any cons to say just over all a great subwoofer. Just want to thank sonic electronix for always having the best deals and fast shipping...
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• Peak Power: 1800W
• RMS Power: 900W
• Sensitivity: 88 dB
• 400 Watts RMS / 800 Watts Max
• Injection molded SoloKon cone
• Ribbed Santoprene Surround
• Stamped Steel Basket
• Perimeter Venting
• Spiralead tinsel-lead technology
• 300 Watts RMS
• 600 Watts Max
• Injection-Molded Polypropylene Cone
• Ribbed Polyurethane Surround with Yellow Stitching
• Stamped Steel Basket
• Peak Power: 1,500W
• RMS Power: 750W
• Injection-molded, patented square polypropylene cone
• Ribbed santoprene surround with blue stitching
• Mounting depth: 3.50 "
• Precision-built in USA at JL Audio’s Miramar, Florida factory
• Injection molded, mica-filled polypropylene cone
• Rubber Surround
• Cast Alloy Basket
• DMA-optimized motor design
• Very small sealed enclosure volume requirements
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Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.