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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Hockey mom
Boise, US
★★★★★ 3
Soft but very thin
Color: 01 - White, Size: Full
Soft but very thin. Not sure these will last long. Didn’t realize how thin the were until I washed them. They do not come out of dryer wrinkle free. Not horrible but still wrinkled.
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Reviewed in the United States on December 31, 2025
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nick
Los Angeles, US
★★★★★ 5
Ralph Lauren quality without the price!!
Very soft sheets!! Exceptional quality! Good fit and great value! Got them for my guest bed on queen.. but hubby slept in there a few nights due to his back hurting. Gonna get some for the master king bed this spring. These are Ralph Lauren quality! And that’s all I have on my bed until now! We are those strange people that like sheets to feel cool when you get into bed.. and these are!
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Reviewed in the United States on January 13, 2026
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JenKa
West Palm Beach, US
★★★★★ 1
Disappointed in quality
Poorly made and not good quality. I had high hopes for these sheets because I love the color. However, after only the second laundering the hem stitching on the pillowcases is actually coming undone. Sleep-quality wise, I found the sheets a little scratchy for sateen, and while we’d hoped they would “sleep cool”, that is not the case. Unfortunately I washed them so I’m unable to return. They’ll go to the end of the line for rotation in emergencies only.
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Reviewed in the United States on May 3, 2026
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JImmy
Los Angeles, US
★★★★★ 5
Good quality
Color: 01 - White, Size: Queen
I've had trouble with other all organic bedding on Amazon but this worked out. It did shrink a bit but it's cotton so it's supposed to do that. And it still fits on my bed pretty well so no complaints.
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Reviewed in the United States on March 21, 2026
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Surrey Laine
Battle Creek, US
★★★★★ 4
Not quite “Hotel” quality
3.5 stars. My initial impressions are the followng: - Definitely not “Hotel” quality construction. I found these a bit thin and poorly stitched/constructed compared to what one would expect of hotel quality linens . - I doubt these are 500tc. They feel very flimsy, if I had to guess based on weight and feel alone I would assume 300tc at best. - Washing does make them softer as is typical with sateen which I would recommend before use as they feel like Polyester right out of the bag. Wash before use. - Color was interesting, not quite as expected. The grey/blue sheets have a seafoam green tint. Not bothersome enough for me to return. - They feel cool to the touch and should keep one comfortable while sleeping. I will update my review if that is not the case. Overall these are good sheets, but they are definitely not great/hotel quality. I’m keeping the ones I got for my children/guest rooms but will return mine as I really do want a higher quality sheet.
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Reviewed in the United States on March 28, 2026

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