Skip to content

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

SKU: B2-RIOT15-D4-V2
Sale price $379.95

Shipping calculated at checkout

Only 20 in stock

Spend $100 to get free shipping

Shop with confidence

  • Fast shipping
  • Live Customer Service
  • Trusted reviews
  • Ach Direct Debit
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa

Open Box Items Available

We have Open Box versions of this product available. View Options:

Flexible financing available

Choose a provider to learn more

Owners Manual

Description

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


This Listing Includes:



  • (1) B2 Audio RIOT Series 15"  Subwoofer


The B2 Audio RIOT15 is built to stir trouble in all the right ways. Packing 750 watts RMS, a rugged 3-inch voice coil, and a punchy 240 oz ferrite motor, this 15-inch subwoofer delivers deep, forceful bass without sacrificing accuracy.


Its dual 4-ohm configuration gives you flexible wiring options, while the strong suspension design and high excursion capability allow it to move serious air with confidence.


Designed for sealed, compact ported, or full-size ported enclosures, the RIOT Series is your entry point into high-output bass that feels alive, responsive, and powerful.


The B2 Audio RIOT15 is built to stir trouble in all the right ways. Packing 750W RMS, a rugged 3" voice coil, and a punchy ferrite motor, this 15" subwoofer brings deep, forceful bass without sacrificing accuracy. Its dual 4-ohm configuration gives you wiring flexibility, while its strong suspension and large excursion ceiling let the woofer breathe, hit, and slam with confidence.


Designed for sealed, compact ported, or full-size ported enclosures, the RIOT Series is your entry ticket to high-output bass that feels alive, responsive, and gloriously unruly.


Features:



  • 750 Watts RMS / 1500 Watts Max power handling

  • Dual 4 Ohm voice coils for flexible amplifier wiring

  • 3 Inch copper voice coil for thermal durability

  • Tall surround and long excursion suspension for deep bass response

  • 240 oz ferrite motor for strong magnetic force and impact

  • 8 Gauge push terminals for secure high-current connections

  • Optimized for sealed, compact, ported, and large ported enclosures

  • Designed for daily use, demo builds, and street systems


Specifications:



  • RMS Power Handling: 750 Watts

  • Max Power Handling: 1500 Watts

  • Nominal Impedance: Dual 4 Ohm

  • Voice Coil Diameter: 3 Inch

  • Push Terminal Wire Gauge: 8 Gauge

  • Frequency Response: 10 Hz to 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


Measurements:



  • 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


Thiele and Small Parameters



  • Free Air Resonance (Fs): 30 Hz

  • DC Resistance (Re): 3.2 Ohm

  • Mechanical Q (Qms): 7.09

  • Electrical Q (Qes): 0.86

  • Total Q (Qts): 0.76

  • Equivalent Compliance Volume (Vas): 61.3 L

  • Compliance (Cms): 70 um/N

  • BL Product: 78.4

  • Moving Mass (Mms): 368.9 g

  • Maximum Excursion (Xmax): 20 mm


Enclosure Suggestions:


Sealed Enclosure:



  • 60 L / 1.125 cu ft

  • Qtc: 0.76


Compact Ported Enclosure:



  • 80 L / 2.83 cu ft

  • Port Area: 32.55 sq in

  • Port Length: 18.22 Inch / 46.3 cm

  • Tuning Frequency (Fb): 38 Hz


Large Ported Enclosure:



  • 190 L / 6.73 cu ft

  • Port Area: 32.55 sq in

  • Port Length: 9.1 Inch / 23.1 cm

  • Tuning Frequency (Fb): 32 Hz


Dimensions:



  • Overall Diameter: 15.35 Inch / 390 mm

  • Mounting Diameter: 13.78 Inch / 350 mm

  • Bolt Pattern Diameter: 14.76 Inch / 375 mm

  • Overall Depth: 9.37 Inch / 238 mm

  • Mounting Depth: 8.11 Inch / 206 mm

CASE QUANTITY: 1

PACKAGE WEIGHT: 33.7 LB

Back to top