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B2 Audio RAVE 8" Subwoofer 250W RMS Dual 4-Ohm 2" Voice Coil RAVE8-D4
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Estimated Ship Date: October 31st 2026
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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






