SKU: 13884840589

B2 Audio Subwoofer X2C 18" Competition 10,000 Watt RMS Dual 2 Ohm

Sale price$1078.17 Regular price$1197.97
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

B2 Audio Subwoofer X2C 18" Competition 10,000 Watt RMS Dual 2 OhmHand Built to Order: Each unit is individually assembled for unmatched attention to detail and performance consistency. 10,000 Watt RMS Powerhouse The B2 Audio X2C 18" Subwoofer delivers a staggering 10,000W RMS and up to 20,000W max power, engineered for high output SPL performance and extreme low end frequencies. Built for Serious Bassheads Featuring a massive 5 inch voice coil, this subwoofer is designed to handle serious thermal loads and deliver

  • Hand Built to Order: Each unit is individually assembled for unmatched attention to detail and performance consistency.
  • 10,000 Watt RMS Powerhouse – The B2 Audio X2C 18" Subwoofer delivers a staggering 10,000W RMS and up to 20,000W max power, engineered for high-output SPL performance and extreme low-end frequencies.
  • Built for Serious Bassheads – Featuring a massive 5-inch voice coil, this subwoofer is designed to handle serious thermal loads and deliver deep, accurate bass from 10 Hz to 150 Hz.
  • Precision Engineering – Includes advanced motor structure, high BL factor (36.0619 N/A), and ultra-durable mechanical suspension for superior excursion control and long-term reliability.


B2 Audio X2C Competition Series 18" 10,000 Watt RMS Dual 2 Ohm Subwoofer


This listing includes:



  • (1) X2C 18" Dual 2 Ohm Subwoofer


​The B2 Audio X2C 18" Dual 2 Ohm subwoofer is a powerhouse designed for serious bass enthusiasts.​ This subwoofer is engineered for high-output SPL applications, featuring a massive motor structure and a 5-inch voice coil for exceptional thermal management and power handling. Its high sensitivity ensures efficient performance even at lower power levels.


Specifications



  • Frequency Range: 10 Hz – 150 Hz

  • Impedance: Dual 2 Ohm

  • RMS Power: 10,000 Watts

  • Max Power: 20,000 Watts


Electrical Parameters



  • Re (DC Resistance): 4.2479 ohms

  • Le (Inductance @ 1 kHz): 8.4008 mH

  • Zmax (Maximum Impedance): 56.4418 ohms

  • BL (Motor Force Factor): 36.0619 N/A


Thiele/Small Parameters



  • Fs (Resonant Frequency): 31.3599 Hz

  • Qes (Electrical Q): 0.6849

  • Qms (Mechanical Q): 8.4158

  • Qts (Total Q): 0.6334

  • Vas (Equivalent Compliance Volume): 49.0655 L (1.7327 ft^3)

  • Cms (Compliance): 24.2032 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): 1064.1830 g


Output & Efficiency



  • Efficiency: 0.2076 %

  • Sensitivity @ 1W/1m: 85.1901 dB

  • Sensitivity @ 2.83Vrms/1m: 87.9393 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: 13884840589

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4.6 ★★★★★
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M
Verified Purchase
mark Vonderwerth
Houston, US
★★★★★ 5
Great
Color: 14AWG-2 Lead
Good quality and affordable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2024
K
Verified Purchase
K. Fleetwood
Lexington, US
★★★★★ 4
Got me hooked UP!
Color: 14AWG-2 Lead, Color: 14AWG-2 Lead
This harness was easy to use long enough to reach all my lights and got me lit up in about an hour only because I had to drill holes for my lights themselves. The harness was super easy to use super easy to tie strap up, so it wouldn’t be seeing or keep out of the way of moving parts
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Reviewed in the United States on October 21, 2024
M
Verified Purchase
MtnGoat
Lowell, US
★★★★★ 5
Good value, nice kit, simple install if you are OK with auto wiring.
Color: 26Inch light White +Wiring Harness
This is my second purchase of this light system. It is a great value for the money. It is pretty darned bright. The wiring harness is complete and would make for an easy install as directed. I'm an EE, so I did some hacks on the system myself, I added some connections to the existing headlight circuit so I could slave the high beam switch to the light bar. Now the switch included with the system functions as an arming switch for the light bar, rather than a simple on/off function. Prior, to turn the bar on and off, you of course used the switch. Now, the bar is slaved to the high beams, so both bar and stock high beams come on using the stock light lever on the steering column, and bar and high beams turn off when you set the lever to low beams. This allows the bar to act as a complement to the high beams, and for you to control them with the high beam lever after arming the system to do so. Overall, a great setup and good product. This bar is installed on my 2000 Fourrunner, my first is installed on a 2003 E350 where I did the first high beam+light bar trick.
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Reviewed in the United States on January 20, 2026
J
Verified Purchase
Jimbo
Phoenix, US
★★★★★ 5
Wiring harness not included!
Color: 26Inch Light White, Color: 26Inch Light White
Replaced my 19 inch Nilight after 6 years. This 26 inch fits perfectly and is bright af. Outstanding product. Doesn’t come with wiring harness, but my existing one worked great. Looks awesome!
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Reviewed in the United States on March 18, 2026
A
Verified Purchase
Al N.
Alexandria, US
★★★★★ 5
Brighter than my headlights on bright!
Color: 26Inch Light White
This Nilight 26 inch 540 watt 50,000 lumen Triple Row Driving light is the brightest light I've ever had on my truck. I bought a kit to mount the light to my Grill Guard, just above the bumper. I can see deer just like daytime, at least two blocks before I get to them. I've never seen a light bar as bright. There are no cons if you ignore the fact that it comes without a wiring harness. I definitely recommend this light bar!
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Reviewed in the United States on January 9, 2026

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