Skip to content
Free shipping with delivery in 2-4 days See details
Free shipping with delivery in 2-4 days See details



B2 Audio RIOT Series 15" 750W RMS Dual 4-Ohm 3" Voice Coil Subwoofer

Save 20% Save 20%
Original price $674.95
Original price $674.95 - Original price $674.95
Original price $674.95
Current price $539.95
$539.95 - $539.95
Current price $539.95

Free Gifts when added to Cart

The more you spend, the greater selection of free gifts you'll have at your fingertips when selecting items in your shopping cart!

Spend More, Save More

Big Jeff loves his customers!!!
  • Spend $250, Save 3% *Must purchase 2 items to qualify
  • Spend $500, Save 5% *Must purchase 3 items to qualify
  • Spend $1000, Save 7% *Must purchase 4 items to qualify

*Does not apply to: AudioControl, Sundown, XS power or Kicker products*

*Does not stack with other promotional sales*

  • Unleash Sonic Fury: Experience unparalleled power and intensity with the B2 Audio RIOT Series 15" Subwoofer's commanding 750W RMS power output, delivering bone-rattling bass that will leave you breathless.
  • Dual 4-Ohm Voice Coils: Dominate your sound system with flexibility and precision, allowing for seamless integration and customization to suit your audio preferences and amplifier setup.
  • Robust 3" Voice Coil: Built for battle, this subwoofer boasts a formidable 3" voice coil that ensures unrivaled performance and durability, even under the most extreme conditions.
  • Revolutionary Engineering: Engineered to disrupt the status quo, the B2 Audio RIOT Series 15" Subwoofer redefines what's possible in sound reproduction, delivering a revolutionary audio experience that will leave competitors trembling in its wake.
  • Join the Revolution: Whether you're a seasoned audiophile or a newcomer craving adrenaline-pumping bass, this subwoofer is your ticket to audio supremacy. Embrace the RIOT and unleash the beast within your sound system.

B2 Audio RIOT Series 15" 750W RMS Dual 4-Ohm 3" Voice Coil Subwoofer

This product includes a free CPS 2 Year Extended Warranty card that will be shipped with your order. You will need to follow the information on the card to register your warranty for this product.

This Listing Includes:

  • (1) B2 Audio RIOT Series 15"  Subwoofer


Prepare to ignite your audio experience with the B2 Audio RIOT Series 15" Subwoofer. This isn't just another speaker; it's a powerhouse of raw energy and unyielding performance, designed to dominate your sound system with relentless force. With a commanding 750W RMS power output, dual 4-ohm voice coils, and a formidable 3" voice coil, this subwoofer is engineered to obliterate the competition and leave a trail of sonic destruction in its wake. Feel the adrenaline surge through your veins as every beat reverberates with spine-tingling intensity. Whether you're craving bone-rattling bass for your car audio setup or seeking to unleash chaos upon your home theater, the B2 Audio RIOT Series 15" Subwoofer is your weapon of choice. Brace yourself for an auditory assault like no other. This is not just sound; this is the revolution.


  • RMS Power Handling: 750 Watts

  • Max Power Handling: 1500 Watts

  • Push Terminal Wire Gauge: 8 Ga

  • Nominal Impedance: Dual 4-Ohm

  • Voice Coil Diameter: 3"

  • Frequency Response: 10 Hz - 500 Hz

  • Sensitivity: 92.6 dB

  • Magnet Weight: 240 oz

  • Displacement Volume: 7.4 L / 0.26 cu.ft.

Thiele & Small Parameters

  • Free Air Resonance (Fs): 30 Hz

  • Resistance (Re): 3.2 Ohm

  • Mechanical Factor (Qms): 7.09

  • Electrical Factor (Qes): 0.86

  • Total Factor (Qts): 0.76

  • Equivalent Volume (Vas): 61.3 L

  • Compliance (Cms): 70 um/N

  • BL Factor (BL): 78.4 BL^2/RE

  • Moving Mass (Mms): 368.9 g

  • Excursion Max (Xmax): 20 mm


  • Overall Diameter: 15.35" / 390 mm

  • Mounting Diameter: 13.78" / 350 mm

  • Bolt Pattern Diameter: 14.76" / 375 mm

  • Overall Depth: 9.37" / 238 mm

  • Mounting Depth: 8.11" / 206 mm

Enclosure Suggestions:


  • 60 L / 1.125 cu.ft

  • Otc: 0.76

Ported Compact:

  • 80 L / 2.83 cu.ft

  • Port: 32.55 sq. in.

  • Length : 18.22" / 46.3 cm

  • FB: 38 Hz


  • 190 L / 6.73 cu.ft

  • Port Area: 32.55

  • Length: 9.1" / 23.1 cm

  • FB: 32 Hz

Payment Information


We accept PayPal for all ebay orders. You can use your credit through PayPal as all major credit card are accepted by PayPal.

We accept PayPal for all international orders, your address must be verified with PayPal.

We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

When you click on the Buy it Now button you are entering into a
contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

Shipping is available only to PayPal verified addresses. When making
payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


If you have not received your package, but the tracking information shows that it was delivered,
please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.

Customer Reviews

Be the first to write a review