Hertz Venezia V4-4-Channel Marine Amplifier

1. Product Overview

The Hertz Venezia V4 is a high-performance 4-channel marine amplifier designed for demanding marine audio environments. It features advanced Class D architecture for high efficiency and power delivery, while minimizing heat and electromagnetic interference. This amplifier is built with marine-grade components, including epoxy-coated PCB boards, to ensure resistance against corrosion, water jets (IP64 rated), and salt fog, meeting ASTM-B117 standards. It also offers Hi-Res certified audio performance with an extended frequency response up to 40 kHz.

Image 1.1: Overview of Hertz Venezia Marine Amplifiers, showcasing their design and marine application.

Image 1.2: Key technologies of Hertz Marine Amplifiers, highlighting Hi-Res Audio, corrosion resistance, water jet resistance, and salt fog proofing.

2. Setup and Installation

Proper installation is crucial for optimal performance and longevity of your Venezia V4 amplifier. Ensure the amplifier is mounted in a location that allows for adequate ventilation and is protected from direct exposure to extreme elements, despite its marine-grade construction. Always disconnect the vehicle's battery before beginning any electrical work.

2.1 Mounting

Select a flat, stable surface for mounting. Use the provided mounting hardware to secure the amplifier. Refer to the dimensions diagram for precise measurements.

Image 2.1: Physical dimensions of the Hertz Venezia V4 amplifier, showing measurements in millimeters and inches for installation planning.

2.2 Power Connections

Connect the power cables as follows:

• +12V: Connect to the positive terminal of the marine battery via an appropriate fuse holder (not included).
• GND: Connect to a clean, solid ground point on the vessel's chassis or battery negative terminal.
• REM IN/OUT: Connect the remote turn-on wire from your head unit to the 'REM IN' terminal. The 'REM OUT' terminal can be used to provide a remote turn-on signal to other components.

2.3 Audio Input Connections

Connect your head unit's RCA pre-out cables to the amplifier's 'INPUT' terminals (L/R for channels A and B).

2.4 Speaker Output Connections

Connect your speakers to the 'SPEAKER OUT' terminal block. Ensure correct polarity (positive to positive, negative to negative) for each channel (AL, AR, BL, BR).

2.5 Remote Control Connection

If using an optional bass remote control, connect it to the 'REMOTE CONTROL' port.

Image 2.2: Rear panel of the Hertz Venezia V4 amplifier, showing power, ground, remote, input, and speaker output connections.

3. Operating Instructions

Once the amplifier is correctly installed and wired, you can power on your audio system and adjust the settings for optimal sound.

3.1 Initial Power-Up

Turn on your head unit. The amplifier should power on automatically via the remote turn-on signal. Observe the power indicator light on the amplifier.

3.2 Adjusting Controls

The top panel of the Venezia V4 features various controls for fine-tuning the audio output:

• Levels (A Ch, B Ch): Adjust the input sensitivity for each channel to match the output level of your head unit. Start with the level set to minimum and slowly increase until desired volume is achieved without distortion.
• Filter Mode (A Ch, B Ch): Select the desired filter type:
  • FULL: Full range audio output.
  • HI-LO: High-pass filter (for tweeters/mid-range speakers).
  • LO-PASS: Low-pass filter (for subwoofers).
• Filter Freq (A Ch, B Ch): Adjust the crossover frequency for the selected filter mode.
• Boost (A Ch, B Ch): Provides a bass boost at a specific frequency. Use sparingly to avoid distortion.
• Mono (A Ch, B Ch): Use this switch to bridge channels for mono output, typically for driving a subwoofer. Refer to the wiring diagram in the full manual for bridging instructions.

Image 3.1: Top panel of the Hertz Venezia V4 amplifier, showing level, filter mode, filter frequency, boost, and mono controls for channels A and B.

3.3 Video Overview

For a general overview of Hertz Marine Audio products, including installation considerations, please watch the following video:

4. Maintenance

The Hertz Venezia V4 amplifier is designed for the marine environment, offering robust protection against common issues. Regular, simple maintenance will help ensure its long-term performance.

• Cleaning: Periodically wipe down the amplifier's exterior with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners.
• Connection Checks: Annually inspect all power, ground, remote, input, and speaker connections for tightness and signs of corrosion. Tighten any loose connections.
• Ventilation: Ensure that the amplifier's cooling fins are free from obstructions to allow for proper heat dissipation.
• Corrosion Prevention: While the amplifier features epoxy-coated PCB boards and is salt fog resistant, it is good practice to periodically check exposed terminals and connections for any signs of corrosion and address them promptly.

5. Troubleshooting

If you encounter issues with your Venezia V4 amplifier, refer to the following common problems and solutions before contacting support.

6. Specifications

Key technical specifications for the Hertz Venezia V4-4-Channel Marine Amplifier:

7. Warranty Information

The Hertz Venezia V4-4-Channel Marine Amplifier is covered by a 1-Year Manufacturer Warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or visit the official Hertz website.

8. Customer Support

If you require further assistance or have questions not covered in this manual, please contact Hertz customer support or an authorized Hertz dealer. You can typically find contact information on the official Hertz website or through your product retailer.

When contacting support, please have your product model (Venezia V4) and serial number available.