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

• 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