B2 Audio X2C Competition 18" 10k Watts RMS Dual 1 Ohm Subwoofer B2-X2C-18-D1-V2
SKU: 58853398157

B2 Audio X2C Competition 18" 10k Watts RMS Dual 1 Ohm Subwoofer B2-X2C-18-D1-V2

Sale price$1078.17 Regular price$1197.97
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Description

B2 Audio X2C Competition 18" 10k Watts RMS Dual 1 Ohm Subwoofer B2-X2C-18-D1-V2EXTREME COMPETITION POWER: The B2 Audio X2C 18" subwoofer is built for serious SPL and demo builds with 10,000 watts RMS and 20,000 watts max power handling. DUAL 1 OHM CONFIGURATION: Dual 1 ohm voice coils give experienced installers flexible wiring options for high power amplifier setups and competition level systems. MASSIVE 5" VOICE COIL: Designed with a large 5 inch voice coil for serious thermal management, improved durability, and reliable

  • EXTREME COMPETITION POWER: The B2 Audio X2C 18" subwoofer is built for serious SPL and demo builds with 10,000 watts RMS and 20,000 watts max power handling.
  • DUAL 1 OHM CONFIGURATION: Dual 1 ohm voice coils give experienced installers flexible wiring options for high-power amplifier setups and competition-level systems.
  • MASSIVE 5" VOICE COIL: Designed with a large 5-inch voice coil for serious thermal management, improved durability, and reliable performance under extreme power.
  • DEEP LOW FREQUENCY OUTPUT: With a frequency range of 10 Hz to 150 Hz, this 18" subwoofer is engineered to deliver brutal low-end bass for high-output audio builds.
  • BUILT FOR SPL BUILDS: Ideal for competition vehicles, wall builds, demo systems, and serious bass enthusiasts who need massive air movement and high-output performance.


B2 Audio X2C Competition Series 18" 10,000 Watt RMS Dual 1 Ohm Subwoofer


This listing includes:



  • (1) X2C 18" Dual 1 Ohm Subwoofer


​The B2 Audio X2C 18" Dual 1 Ohm Subwoofer is built for extreme SPL competitors and serious bass builders who need brutal power handling, deep low-frequency output, and a motor structure that does not flinch under pressure.


Engineered for high-output competition systems, the X2C features a massive motor assembly, a large 5-inch voice coil, and serious thermal management to handle up to 10,000 watts RMS and 20,000 watts max power. With a frequency range down to 10 Hz, this 18-inch subwoofer is designed to move serious air and deliver the kind of low-end force that turns builds into legends.


Whether you are chasing meter numbers, hair tricks, or ground-shaking demo power, the X2C 18" is built for bass systems where average simply gets escorted out of the parking lot.


Features



  • Competition-grade 18" SPL subwoofer

  • Dual 1 Ohm voice coil configuration

  • 10,000 watts RMS power handling

  • 20,000 watts max power handling

  • Massive 5" voice coil for extreme thermal control

  • Designed for high-output SPL and demo builds

  • Deep frequency response down to 10 Hz

  • High motor force for powerful cone control

  • Built for serious competitors and extreme bass enthusiasts


Specifications



  • Frequency Range: 10 Hz – 150 Hz

  • Impedance: Dual 1 Ohm

  • RMS Power: 10,000 Watts

  • Max Power: 20,000 Watts


Electrical Parameters



  • Re (DC Resistance): 1.5971 ohms

  • Le (Inductance @ 1 kHz): 3.7877 mH

  • Zmax (Maximum Impedance): 27.2880 ohms

  • BL (Motor Force Factor): 24.4398 N/A


Thiele/Small Parameters



  • Fs (Resonant Frequency): 29.25 Hz

  • Qes (Electrical Q): 0.4664

  • Qms (Mechanical Q): 7.5029

  • Qts (Total Q): 0.4391

  • Vas (Equivalent Compliance Volume): 63.23 L (1.7327 ft^3)

  • Cms (Compliance): 31.1905 M/N


Physical Characteristics



  • Effective Diameter: 390.0000 mm  (15.3543 in)

  • Sd (Cone Area): 119459.0554 mm^2 (185.1619 in^2)

  • Mms (Moving Mass): 949.0932 g


Output & Efficiency



  • Efficiency: 0.3188 %

  • Sensitivity @ 1W/1m: 87.0536 dB

  • Sensitivity @ 2.83Vrms/1m: 94.0512 dB

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: 58853398157

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J. Barz
West Palm Beach, US
★★★★★ 5
Lovely Shoes
Size: 8.5, Color: Nude/Nubuck
These were a gift. I understand they are "slightly" wide at the toes but fit otherwise. The color & heel height were exactly as desired. She felt the traction was also very good. I look forward to seeing her wear them to her son's wedding!
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Reviewed in the United States on May 30, 2026
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S. F. Rushing
Natrona Heights, US
★★★★★ 5
Pretty in pink
Size: 7, Color: Pink, Size: 7, Color: Pink
Great shoe. Fits perfectly. I hope they're comfortable when I wear them.
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Reviewed in the United States on May 23, 2026
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Cassie McLain
Phoenix, US
★★★★★ 5
Wedding Guest Shoe
Size: 6.5, Color: Silver/Glitter
True to size. Very true 6.5 in most all of my shoes. I thought the fit was great but after wearing for a little bit they are horrible. The glitter goes down a little too far on the back and rubs the heel. The sides of your toes will hurt after a little bit of wearing them. Super cute shoes and I toughed it out because they looked great but definitely not the most comfortable shoes.
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Reviewed in the United States on May 13, 2026
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Gloria Chirila
Alexandria, US
★★★★★ 4
These shoes are adorable but they run large
Size: 11, Color: Champagne
Dream Pairs Low Chunk Heel Size 11 Color These shoes are absolutely gorgeous. The beautiful champagne color shines so exquisitely in the light. They are very shiny and somewhat sparkly. They are definitely eye catching. Style These shoes are great looking, rather sharp. I appreciate the chunky heel design which goes with many outfits from dresses, pants, and jumpers. Size I usually wear a size 11 shoe, sometimes a 10.5 depending on how they run, but these run large in length. I could have easily bought a size 10 for the length of the shoe. My left foot is smaller than the right foot so usually the right foot fits more snug. I definitely still had room in the back for the right foot, but of course, even more room in the back for the left foot. In terms of the width, the toe strap very well accommodates wider toe boxes, as the straps fit properly right out of the box, but the arch of the shoe is a little narrow. Nothing too noticeable but the fit of the shoe is a little odd. Versatility I find that these shoes can be worn with many different styles and outfits, and can go with dressy or casual clothing. The variety of matching outfits is not limited. Comfort These shoes are very comfortable to wear and walk in. Overall, I recommend these shoes
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Reviewed in the United States on July 14, 2025
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KadeeH
Carnegie, US
★★★★★ 5
Perfect heel!
Size: 11, Color: Gold/Glitter
Love these heels! I bought the gold and wasn’t expecting them to be most glittery. They are beautiful and comfortable! The heel is chunky enough that these walk like a wedge but don’t look like the heels from the lay 90’s. Love them and will be buying in different colors n
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Reviewed in the United States on May 29, 2026

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