Skar Audio SVR-8 D4 8-inch Dual 4 Ohm Car Subwoofer Instruction Manual

1. Overview

The Skar Audio SVR-8 D4 is an 8-inch dual 4 ohm car subwoofer designed to deliver powerful and dynamic bass. Engineered with high-quality components, this subwoofer is built for performance and durability in automotive audio systems.

Figure 1: Front view of the Skar Audio SVR-8 D4 Subwoofer.

2. Features

• Peak Power: 800 watts
• RMS Power: 400 watts
• Voice Coil: 2.6" (65.5mm) dual 4-ohm high temperature 4-layer copper voice coil
• Motor: Powerful high flux ferrite motor with advanced air flow cooling design
• Fs: 48 Hz
• Sensitivity: 81.8 dB
• Surround: High roll foam surround stitched to competition grade pressed paper cone

3. Setup and Installation

Proper installation is crucial for optimal performance and longevity of your subwoofer. Ensure all connections are secure and correctly polarized. Consult a professional if you are unsure about any steps.

3.1 Wiring Configuration

The SVR-8 D4 features a dual 4-ohm voice coil, offering flexibility in wiring configurations to match your amplifier's impedance requirements. Common configurations include parallel, series, or series-parallel wiring for multiple subwoofers.

Figure 2: Rear view showing the dual voice coil terminals.

Wiring for Two Dual Voice Coil 4 Ohm Subwoofers

For detailed instructions on wiring two dual voice coil 4 ohm subwoofers, please refer to the instructional video below. This video demonstrates various configurations to achieve desired impedance loads for your amplifier.

Video 1: Instructional guide on wiring two DVC 4 Ohm subwoofers. This video provides visual steps for parallel and series-parallel configurations, explaining how to achieve different impedance loads for optimal amplifier matching.

3.2 Enclosure Recommendations

For optimal sound quality and performance, it is recommended to install the SVR-8 D4 subwoofer in a properly designed and constructed enclosure. Consult Skar Audio's official resources or a car audio specialist for recommended enclosure types and volumes.

4. Operating Instructions

4.1 Break-in Period

Allow a break-in period of approximately 10-20 hours of normal listening at moderate volumes before pushing the subwoofer to its maximum capabilities. This allows the suspension components to loosen and perform optimally.

4.2 Amplifier Settings

• Gain Setting: Set the amplifier gain to match the output voltage of your head unit. Avoid setting the gain too high, as this can lead to distortion and potential damage.
• Low-Pass Filter (LPF): Set the LPF on your amplifier or head unit to filter out frequencies above the subwoofer's optimal range, typically between 80-120 Hz.
• Subsonic Filter: If available, set the subsonic filter to protect the subwoofer from playing frequencies below its resonant frequency (Fs), which is 48 Hz for the SVR-8 D4. A setting around 30-40 Hz is often appropriate.

5. Maintenance

• Keep the subwoofer cone and surround free from dust and debris. Use a soft, dry cloth for cleaning.
• Regularly check all wiring connections to ensure they are secure and free from corrosion.
• Avoid exposing the subwoofer to extreme temperatures or moisture.

6. Troubleshooting

6.1 No Sound from Subwoofer

• Check power and ground connections to the amplifier.
• Verify the remote turn-on wire is connected and receiving power.
• Ensure RCA cables are securely connected to both the head unit and amplifier.
• Check the amplifier's protection mode indicator.
• Confirm subwoofer wiring is correct and not shorted.

6.2 Distorted Sound

• Reduce amplifier gain settings.
• Check for proper LPF and subsonic filter settings.
• Ensure the subwoofer is not over-powered or under-powered.
• Inspect the subwoofer cone and surround for any physical damage.

7. Specifications

Figure 3: Skar Audio SVR-8 D4 Subwoofer with key dimensions.

8. Warranty and Support

The Skar Audio SVR-8 D4 subwoofer comes with a Limited Warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official Skar Audio website.

For technical support, troubleshooting assistance, or any questions regarding your Skar Audio product, please contact Skar Audio customer service directly. Contact information can be found on the official Skar Audio website or in your product packaging.