B2 Audio X2C Competition Series 15" 10,000 Watt RMS Dual 1 Ohm Subwoofer

• 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 15" 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 and weighing over 110 lb, 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 (24.7988 N/A), and ultra-durable mechanical suspension for superior excursion control and long-term reliability.

B2 Audio X2C Competition Series 15" 10,000 Watt RMS Dual 1 Ohm Subwoofer

This listing includes:

• (1) X2C 15" Dual 1 Ohm Subwoofer

​The B2 Audio X2C 15" Dual 1 Ohm subwoofer is a powerhouse designed for serious bass enthusiasts. Weighing over 110 lb, it's built to deliver extreme low-frequency performance.​ 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 1 Ohm


• RMS Power: 10,000 Watts


• Max Power: 20,000 Watts

Electrical Parameters

• Re (DC Resistance): 1.7875 ohms


• Le (Inductance @ 1 kHz): 3.9447 mH


• Zmax (Maximum Impedance): 26.0989 ohms


• BL (Motor Force Factor): 24.7988 N/A

Thiele/Small Parameters

• Fs (Resonant Frequency): 28.1566 Hz


• Qes (Electrical Q): 0.5292


• Qms (Mechanical Q): 7.1975


• Qts (Total Q): 0.4930


• Vas (Equivalent Compliance Volume): 28.5265 L (1.0074 ft)


• Cms (Compliance): 31.0459 M/N


• Kms (Stiffness): 32,210.4160 N/M


• Rms (Mechanical Resistance): 25.2961

Physical Characteristics

• Effective Diameter: 325.0000 mm (12.7963 in)


• Sd (Cone Area): 82,957.67 mm (124.6586 in)


• Mms (Moving Mass): 1029.1442 g

Output & Efficiency

• Efficiency: 0.1131 %


• Sensitivity @ 1W/1m: 82.5512 dB


• Sensitivity @ 2.83Vrms/1m: 89.0595 dB

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
• Apple Pay
• Meta Pay (formerly Facebook Pay)
• Google Pay
• Shop Pay
• PayPal

International Payment Methods

• Bancontact
• iDEAL

Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

Why Can’t I Track My Order?

If you're having trouble tracking your order:

• Make sure you’ve received the shipping confirmation email with the tracking number.
• Log into your account on our website and use the “Check Your Order Status” button.
• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.