Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your BLACK DIAMOND Dia-M6.4B 6.5-inch Midrange Loudspeaker. Please read this manual thoroughly before installation and use to ensure optimal performance and longevity of your product. Proper installation and care are crucial for achieving the intended audio experience.
Product Features
- Powerful Sound Performance: 6.5-inch 2-way midrange speaker with a bullet tweeter, offering clear sound and high sensitivity of 94dB for distortion-free audio at high volumes.
- High Power Handling: Delivers 250W RMS power handling, capable of meeting the demands of high-intensity audio setups without compromising sound quality.
- Durable Construction: Features a robust 1.5-inch Kapton voice coil, non-pressed paper cone, and a cloth surround for long-lasting durability and smooth sound output.
- Heavy-Duty Components: Equipped with a 30 oz ferrite magnet and a steel basket for enhanced stability and consistent performance across a wide frequency range.
- Versatile Installation: 4-ohm impedance for flexible amplifier configurations and ideal for front or rear door installations, with a frequency response range of 125Hz to 12KHz.
Package Contents
Upon opening the package, verify that all items are present and in good condition:
- 1 x BLACK DIAMOND Dia-M6.4B 6.5-inch Midrange Loudspeaker
- 1 x Owner's Manual
Note: Additional accessories such as mounting hardware or wiring may be sold separately or included with specific kits. Refer to your purchase details for a complete list.
Specifications
| Model Name | DIA-M6.4B |
| Speaker Type | Loudspeaker (Midrange with Bullet) |
| Speaker Size | 6.5 Inches (165.1 mm) |
| RMS Power Handling | 250 Watts |
| Maximum Output Power | 500 Watts |
| Impedance | 4 Ohm |
| Frequency Response | 125Hz - 12KHz |
| Sensitivity | 94 dB |
| Voice Coil | 1.5-inch Kapton |
| Magnet Weight | 30 oz Ferrite |
| Mounting Depth | 2.60 inches (66 mm) |
| Product Dimensions | 2.83"D x 6.61"W x 6.61"H |
| Item Weight | 5.25 pounds |
| UPC | 810005189125 |
Installation Guide
Proper installation is essential for the performance and safety of your loudspeaker. If you are unsure about any steps, consult a professional car audio installer.
Safety Precautions
- Disconnect the vehicle's battery before starting any electrical work.
- Wear appropriate safety gear, including eye protection.
- Ensure all wiring is properly insulated and secured to prevent short circuits and damage.
- Do not mount speakers where they obstruct airbags or other safety features.
Tools Required
- Screwdriver set (Phillips and flathead)
- Wire strippers/crimpers
- Drill with appropriate bit sizes
- Measuring tape
- Panel removal tools (if installing in vehicle doors)
- Multimeter (for checking impedance and polarity)
Mounting Instructions
- Choose Mounting Location: The Dia-M6.4B is designed for car or truck door installations. Ensure sufficient depth (2.60 inches) and clearance for the speaker and its magnet.
- Prepare Mounting Surface: If replacing existing speakers, remove the old units. If creating new openings, carefully mark and cut the speaker holes according to the provided template (if available) or the speaker's dimensions.
- Wiring: Connect the speaker wires to the terminals on the back of the speaker. Ensure correct polarity (positive to positive, negative to negative) to avoid phase issues.
- Secure Speaker: Place the speaker into the mounting hole and secure it using appropriate screws. Do not overtighten, as this can damage the speaker frame.
- Connect to Amplifier: Connect the speaker wires to your amplifier, ensuring the amplifier's impedance matches the speaker's 4-ohm rating.
Wiring Diagram
While a specific diagram is not provided here, always refer to your amplifier's manual for proper wiring configurations. For a single 4-ohm speaker, connect the positive (+) terminal of the speaker to the positive (+) output of the amplifier, and the negative (-) terminal of the speaker to the negative (-) output of the amplifier. For multiple speakers, ensure the total impedance matches the amplifier's stable operating range.
Operating Instructions
Once installed, follow these guidelines for optimal operation of your Dia-M6.4B loudspeaker.
Initial Setup and Break-in
- After installation, begin with low to moderate volume levels for the first 10-20 hours of use. This 'break-in' period allows the speaker's suspension components to loosen and perform optimally.
- Avoid playing music at extremely high volumes or with excessive bass during the break-in period.
Audio Adjustment
- Gain Settings: Adjust the gain on your amplifier carefully. Too high a gain can lead to distortion and potential speaker damage. Set the gain to match the output voltage of your head unit without introducing audible distortion.
- Crossover Settings: Utilize your amplifier's or head unit's crossover settings. For midrange speakers, a high-pass filter (HPF) is recommended to prevent low frequencies from reaching the speaker, which can cause distortion and damage. A typical HPF setting for the Dia-M6.4B might be around 125Hz or higher, depending on your system's configuration.
- Equalization: Use your head unit's equalizer to fine-tune the sound to your preference. Avoid extreme boosts in any frequency range, especially at high volumes.
Maintenance
Regular maintenance helps preserve the performance and appearance of your BLACK DIAMOND Dia-M6.4B loudspeaker.
Cleaning
- Use a soft, dry cloth to gently wipe down the speaker cone and surround.
- Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the speaker materials.
- For stubborn dirt, a slightly damp cloth can be used, but ensure the speaker is completely dry before operating.
Inspection
- Periodically inspect the speaker for any signs of damage, such as tears in the cone or surround, loose connections, or corrosion on the terminals.
- Ensure all mounting screws remain tight.
Troubleshooting
If you encounter issues with your Dia-M6.4B loudspeaker, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound | Loose or incorrect wiring, amplifier off or faulty, head unit issue. | Check all wiring connections for tightness and correct polarity. Verify amplifier power and settings. Test with another audio source. |
| Distorted Sound | Amplifier gain too high, incorrect crossover settings, damaged speaker, insufficient power. | Reduce amplifier gain. Adjust crossover settings (HPF recommended). Inspect speaker for physical damage. Ensure adequate power supply. |
| Low Volume | Incorrect gain settings, speaker wired out of phase, low input signal. | Increase amplifier gain (without distortion). Check speaker wiring for correct polarity. Verify head unit output level. |
| Intermittent Sound | Loose connections, faulty wiring, amplifier overheating. | Inspect all wiring and connections. Ensure proper ventilation for the amplifier. |
Official Product Video
Warranty and Support
Warranty Information
The BLACK DIAMOND Dia-M6.4B loudspeaker comes with a Limited Warranty. Please retain your proof of purchase for any warranty claims. Specific terms and conditions of the warranty are typically detailed in the packaging or on the manufacturer's official website.
Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact BLACK DIAMOND customer support. Refer to the contact information provided on the product packaging or the official BLACK DIAMOND website (Visit the BLACK DIAMOND Store) for the most up-to-date support options.
