Hertz Es 300 D Subwoofer User Manual

Introduction

Thank you for choosing the Hertz Es 300 D Subwoofer. This manual provides essential information for the proper installation, operation, and maintenance of your new subwoofer. Please read this manual thoroughly before using the product to ensure optimal performance and safety.

Safety Information

Always observe the following safety precautions to prevent injury or damage to the product:

• Ensure all connections are secure and properly insulated to prevent short circuits.
• Do not expose the subwoofer to excessive moisture or extreme temperatures.
• Disconnect power before making any connections or performing maintenance.
• Consult a professional installer if you are unsure about any installation steps.
• Avoid operating the subwoofer at distortion levels, as this can cause permanent damage.

Package Contents

Verify that all items are present in the package:

• Hertz Es 300 D Subwoofer
• User Manual (this document)
• Mounting hardware (if applicable, typically not included with bare subwoofers but good to mention generally)

Note: Specific mounting hardware may vary or be sold separately.

Setup and Installation

Proper installation is crucial for optimal performance and longevity of your subwoofer. It is recommended to have this product installed by a qualified professional.

1. Choosing an Enclosure

The Hertz Es 300 D is designed for use in a sealed or ported enclosure. Refer to the specifications section for recommended enclosure volumes. The enclosure should be robust and free from air leaks to ensure proper acoustic performance.

2. Wiring Connections

The Es 300 D features a dual 4 Ohm voice coil configuration, allowing for various wiring options to achieve different impedance loads (2 Ohm or 8 Ohm). Always match the subwoofer's impedance to your amplifier's stable operating impedance.

Image: Subwoofer Terminals. This image displays the side profile of the Hertz Es 300 D subwoofer, highlighting the dual voice coil terminals. The terminals are clearly labeled for positive and negative connections for each coil, essential for proper wiring configurations.

Parallel Wiring (2 Ohm Load):

Connect the positive terminal of Voice Coil 1 to the positive terminal of Voice Coil 2. Connect the negative terminal of Voice Coil 1 to the negative terminal of Voice Coil 2. Then, connect the combined positive to the amplifier's positive output and the combined negative to the amplifier's negative output. This configuration results in a 2 Ohm load.

Series Wiring (8 Ohm Load):

Connect the positive terminal of Voice Coil 1 to the amplifier's positive output. Connect the negative terminal of Voice Coil 1 to the positive terminal of Voice Coil 2. Connect the negative terminal of Voice Coil 2 to the amplifier's negative output. This configuration results in an 8 Ohm load.

Ensure all connections are tight and free from corrosion. Use appropriate gauge wiring for the power levels involved.

3. Mounting the Subwoofer

Once the enclosure is prepared and wired, carefully mount the subwoofer. Ensure a secure fit to prevent vibrations and air leaks. Use all designated mounting points.

Image: Subwoofer Angled View. This image shows the Hertz Es 300 D subwoofer from an angled perspective, revealing both the cone and the magnet structure. This view helps in understanding the overall physical dimensions and design for mounting purposes.

Image: Subwoofer Top View. This image provides a direct top-down view of the Hertz Es 300 D subwoofer's cone and surround. This perspective is useful for verifying the cone's condition and for precise cutout measurements during installation.

Image: Subwoofer Bottom View. This image shows the bottom of the Hertz Es 300 D subwoofer, focusing on the magnet assembly and frame. This view is important for understanding the depth required for mounting and the overall structural integrity.

Operating Instructions

Once installed, the subwoofer requires proper tuning for optimal sound quality and longevity.

1. Amplifier Gain Setting

Set the amplifier gain according to the amplifier's instructions, ensuring it is matched to the output voltage of your head unit. Avoid setting the gain too high, as this can lead to distortion and damage to the subwoofer.

2. Crossover Settings

Utilize the low-pass filter (LPF) on your amplifier or head unit to send only low frequencies to the subwoofer. A typical starting point for the LPF is between 60 Hz and 80 Hz, but this may vary based on your vehicle's acoustics and personal preference.

3. Subsonic Filter

If your amplifier has a subsonic filter, set it slightly below your enclosure's tuning frequency (for ported enclosures) or around 20-25 Hz (for sealed enclosures) to protect the subwoofer from playing frequencies too low for its design.

4. Break-in Period

Allow a break-in period of approximately 20-30 hours of normal listening before pushing the subwoofer to its maximum capabilities. This allows the suspension components to loosen and perform optimally.

Maintenance

The Hertz Es 300 D Subwoofer requires minimal maintenance to ensure long-term performance.

• Cleaning: Use a soft, dry cloth to wipe down the cone and surround. Avoid using harsh chemicals or abrasive cleaners.
• Inspection: Periodically check all wiring connections for tightness and signs of corrosion. Ensure the subwoofer is securely mounted.
• Environment: Protect the subwoofer from direct sunlight, extreme temperatures, and excessive moisture.

Troubleshooting

If you experience issues with your Hertz Es 300 D Subwoofer, refer to the following common problems and solutions:

If the problem persists after attempting these solutions, contact Hertz customer support or a qualified service technician.

Specifications

Technical specifications for the Hertz Es 300 D Subwoofer:

• Model: Es 300 D
• Item Model Number: 070205
• Speaker Type: Subwoofer
• Maximum Power Handling: 1050 Watts
• RMS Power Handling: 350 Watts
• Nominal Impedance: 4 + 4 Ohm (Dual Voice Coil)
• Recommended Uses: For Surround Sound Systems, For Car Audio
• Compatible Devices: Car Stereo, Head Unit, Infotainment System
• Product Dimensions: 31.2 x 31.2 x 14.3 cm (12.28 x 12.28 x 5.63 inches)
• Item Weight: 5.6 kg (12.35 lbs)
• Mounting Type: Flush Mount
• Manufacturer: Elettromedia

Warranty and Support

Hertz products are designed and manufactured to the highest quality standards. For information regarding warranty coverage, terms, and conditions, please refer to the warranty card included with your product or visit the official Hertz website.

For technical support, service, or inquiries, please contact your authorized Hertz dealer or visit the official Hertz support page:

Hertz Official Support