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B2 Audio RAVE 8" Subwoofer 250W RMS Dual 4-Ohm 2" Voice Coil RAVE8-D4

Pre-order coming October 1st! - Sign up to be notified when Pre-order opens (back in stock button below the add to cart button)!

Estimated Ship Date: October 31st 2026

*Pre-Orders are non-refundable

Sale price $74.95

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Owners Manual

Description

  • COMPACT 8" BASS: Add strong low-frequency performance without requiring the installation space of a larger subwoofer.
  • DUAL 4-OHM VOICE COILS: Flexible DVC configuration gives installers multiple wiring options for matching compatible amplifiers.
  • 2" VOICE COIL: Built around a substantial 2-inch voice coil for dependable everyday bass performance.
  • 250-WATT RMS POWER RATING: Designed to bring impressive output to affordable daily-driver car audio systems.
  • B2 AUDIO RAVE SERIES: Budget-friendly performance for anyone looking to add B2 Audio bass without moving into the higher-end subwoofer lines.


B2 Audio RAVE 8" Subwoofer 250W RMS Dual 4-Ohm 2" Voice Coil RAVE8-D4


This Listing Includes:



  • (1) B2 Audio RAVE8-D4 8" Subwoofer


The B2 Audio RAVE8-D4 brings B2 Audio bass performance to compact daily-driver systems. Rated for 250 watts RMS, this 8-inch RAVE Series subwoofer is built for customers who need real low-end output in space-conscious enclosures and practical everyday installs.


Its dual 4-ohm voice coil configuration gives builders flexible wiring options for compatible amplifiers, while the compact 8-inch platform works well for smaller bass systems, factory-audio upgrades, and custom installs where larger subwoofers are not the right fit.


With a ferrite motor assembly, NPP cone, slim U-shaped foam surround, and 7 mm one-way Xmax, the RAVE8-D4 is designed to deliver controlled bass from a compact platform. Manufacturer ported-enclosure recommendations are included below for builders looking to get the intended performance from their system.


Features:



  • 250W RMS / 500W Max Power Handling

  • Dual 4-Ohm Voice Coil Configuration

  • Compact 8-Inch Subwoofer Platform

  • 2.0-Inch / 50.8 mm Voice Coil Diameter

  • 120 Oz Ferrite Motor Assembly

  • NPP Cone with Slim U-Shaped Foam Surround

  • 7 mm One-Way Xmax

  • Manufacturer Compact and Standard Ported Enclosure Suggestions


Specifications:



  • Brand: B2 Audio

  • Series: RAVE

  • Model: RAVE8-D4

  • Nominal Chassis Diameter: 8.2" / 209 mm

  • Voice Coil Configuration: Dual Voice Coil

  • Nominal Impedance: Dual 4 Ohm

  • RMS Power Handling: 250 Watts

  • Maximum Power Handling: 500 Watts

  • Frequency Response: 50 Hz - 2300 Hz

  • Resonant Frequency, Fs: 52.2 Hz

  • Sensitivity: 85.3 dB (1W/1m)

  • Voice Coil Diameter: 2.0" / 50.8 mm

  • Magnet Type: Ferrite

  • Motor Assembly Weight: 120 Oz

  • Cone Material: NPP

  • Surround Type: Slim U-Shaped Foam

  • One-Way Xmax: 7 mm

  • Overall Diameter: 8.2" / 209 mm

  • Bolt Circle Diameter: 7.8" / 198 mm

  • Baffle Cutout Diameter: 7.3" / 185 mm

  • Mounting Depth: 4.3" / 110 mm

  • Net Weight: 3.3 kg


Thiele/Small Parameters:



  • Fs: 52.2 Hz

  • Vas: 8.75 L

  • Re, Parallel: 1.7 Ohm

  • Qms: 3.87

  • Qes: 0.58

  • Qts: 0.506

  • BL: 7.38 T/m

  • Mms: 56.9 g

  • Xmax, One Way: 7 mm

  • Sd: 196 cm squared

  • Efficiency: 0.205%

  • Le, 1 kHz: 8.9 mH

  • EBP: 90


Manufacturer Enclosure Suggestions:


Ported Compact



  • Enclosure Volume: 19.5 L / 0.689 ft cubed

  • Tuning Frequency: 42 Hz

  • Port Area: 6.6 in squared

  • Port Length: 13.14"


Ported



  • Enclosure Volume: 22.5 L / 0.79 ft cubed

  • Tuning Frequency: 40 Hz

  • Port Area: 6.6 in sqaured

  • Port Length: 12.35"

CASE QUANTITY: 1

PACKAGE WEIGHT: 9.0 LB

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