1. Introduction
Thank you for choosing the Hertz Venezia V5-5-Channel Marine Amplifier. This manual provides essential information for the proper installation, operation, and maintenance of your amplifier. Designed for marine environments, the Venezia V5 delivers high-fidelity audio performance with robust protection against harsh conditions. Please read this manual thoroughly before installation and use to ensure optimal performance and longevity of your product.
2. Safety Information
Always observe the following safety precautions:
- Disconnect the vehicle's battery negative terminal before any installation or wiring.
- Ensure all wiring is correctly routed and secured to prevent damage from sharp edges or moving parts.
- Use appropriate gauge wiring for power and ground connections as specified in the installation section.
- Install the amplifier in a location that allows for adequate ventilation and is protected from direct water exposure, despite its marine-grade design.
- Do not operate the amplifier if it has been submerged in water or shows signs of physical damage.
- Seek professional assistance if you are unsure about any installation or wiring procedures.
3. Package Contents
Verify that your package contains the following items:
- Hertz Venezia V5-5-Channel Marine Amplifier
- Power/Speaker Connectors
- Mounting Hardware
- User Manual (this document)
4. Product Overview
The Hertz Venezia V5 is a high-performance 5-channel marine amplifier designed for demanding audio systems. It features advanced Class D architecture for efficiency and marine-grade components for durability.
Figure 4.1: Top and side view of the Hertz Venezia V5 Marine Amplifier, showcasing its compact design and HERTZ branding.
4.1 Rear Panel Connections
The rear panel houses all essential power, ground, and speaker output connections.
Figure 4.2: Detailed view of the rear panel, showing +12V, GND, REM IN/OUT, INPUT (L/R/SUB), Rem. Vol. Control, and SPEAKER OUT terminals.
- +12V: Main power input from the battery.
- GND: Ground connection to the vehicle/boat chassis.
- REM IN/OUT: Remote turn-on input and output for system integration.
- INPUT (L/R/SUB): RCA inputs for audio signals.
- Rem. Vol. Control: Port for optional remote subwoofer level control.
- SPEAKER OUT: Terminals for connecting speakers.
4.2 Top Panel Controls
The top panel features various controls for fine-tuning audio output, including input level adjustments, crossover settings, and amplifier mode selection.
Figure 4.3: View of the top panel, illustrating the AMP MODE switch, LEVEL controls, HI PASS, LO PASS, BOOST, and SUBSONIC filters for channels A, B, and SUB.
- AMP MODE: Selects the amplifier's operating mode (e.g., 2-Ch, 3-Ch, 5-Ch).
- LEVELS: Adjusts the input sensitivity for each channel group (A, B, Sub).
- HI PASS: High-pass filter frequency adjustment.
- LO PASS: Low-pass filter frequency adjustment.
- BOOST: Bass boost level adjustment.
- SUBSONIC: Subsonic filter frequency adjustment for the subwoofer channel.
- PHASE: Subwoofer phase control (0°/180°).
5. Installation
Proper installation is crucial for the performance and safety of your amplifier. Ensure all connections are secure and correctly polarized.
5.1 Mounting Location
Choose a mounting location that is:
- Accessible for wiring and adjustments.
- Protected from direct sunlight and excessive heat.
- Allows for adequate air circulation around the amplifier's heatsink.
- Secure from vibration and physical damage.
Figure 5.1: Dimensions of the Hertz Venezia V5 amplifier. Product Dimensions: 13 x 7.87 x 2.12 inches.
5.2 Wiring Connections
Refer to Figure 4.2 for connection points.
- Power (+12V): Connect a suitable gauge power cable directly from the positive terminal of the battery. Install an appropriate fuse (not supplied) within 18 inches of the battery.
- Ground (GND): Connect a cable of the same gauge as the power cable to a clean, solid metal point on the boat's chassis or a dedicated ground bus bar. Ensure a good electrical connection.
- Remote Turn-On (REM IN): Connect a wire from your head unit's remote output to the REM IN terminal.
- Audio Input (INPUT): Connect RCA cables from your head unit's pre-out to the corresponding INPUT terminals (L, R, SUB).
- Speaker Output (SPEAKER OUT): Connect your speakers to the SPEAKER OUT terminals, observing correct polarity (+ and -). Ensure the total impedance of connected speakers matches the amplifier's specifications.
6. Operating
Once installed, the amplifier requires proper configuration for optimal sound quality.
6.1 Initial Setup
- AMP MODE Selection: Set the AMP MODE switch (Figure 4.3) according to your speaker configuration (e.g., 5-channel for front, rear, and subwoofer speakers).
- Input Level Adjustment: Turn the LEVEL controls (Figure 4.3) to their minimum position. Play a familiar audio track at about 75% of your head unit's maximum volume. Slowly increase the amplifier's LEVEL control until you hear slight distortion, then back off slightly.
- Crossover Settings: Adjust the HI PASS, LO PASS, and SUBSONIC filters (Figure 4.3) to integrate your speakers and subwoofer smoothly. Typical settings for full-range speakers might be 80-100 Hz HI PASS, while subwoofers typically use a LO PASS filter around 80-120 Hz and a SUBSONIC filter around 20-30 Hz.
- Bass Boost: Use the BOOST control sparingly to enhance bass response if desired. Excessive boost can lead to distortion.
- Phase Control: For the subwoofer channel, experiment with the PHASE switch (0° or 180°) to achieve the best bass impact and integration with your main speakers.
7. Maintenance
The Hertz Venezia V5 is designed for marine environments with features like epoxy-coated PCB boards and IP64 protection. Regular maintenance ensures continued performance.
- Cleaning: Periodically clean the amplifier's exterior with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners. Ensure ventilation fins are free from debris.
- Connections: Regularly check all power, ground, and speaker connections for tightness and corrosion. Loose connections can cause performance issues or damage.
- Environmental Protection: While marine-grade, avoid prolonged exposure to direct saltwater spray. The IP64 rating protects against water jets, but not submersion.
- Temperature: Ensure the amplifier has adequate ventilation to prevent overheating, especially during extended use at high volumes.
8. Troubleshooting
If you encounter issues with your amplifier, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power / Amplifier does not turn on | Blown fuse; Loose power/ground/remote connection; Faulty wiring. | Check the in-line fuse near the battery; Verify all power, ground, and remote turn-on connections are secure and correctly wired. |
| No Sound Output | No audio input signal; Speaker wires disconnected; Amplifier in protection mode; Incorrect input level settings. | Check RCA input cables; Verify speaker connections; Check amplifier status indicator (if available); Adjust input levels. |
| Distorted Sound | Input level too high; Speaker impedance too low; Damaged speakers; Incorrect crossover settings. | Reduce input level; Verify speaker impedance; Inspect speakers for damage; Adjust crossover settings. |
| Amplifier Overheating | Insufficient ventilation; Speaker impedance too low; Extended high-volume operation. | Ensure adequate airflow around the amplifier; Verify speaker impedance; Reduce volume or allow amplifier to cool. |
9. Specifications
The following are the technical specifications for the Hertz Venezia V5-5-Channel Marine Amplifier:
- Model: Venezia-V5
- Channels: 5-Channel (4 x 220W + 1 x 780W @ 2-Ohm)
- Architecture: Advanced Class D
- Hi-Res Audio: Certified, extended audio band up to 40 kHz
- Marine Grade Protection: Epoxy coated PCB boards, ASTM-B117 salt fog spray tested, IP64 protection against water jets.
- Item Weight: 10 pounds
- Product Dimensions: 13 x 7.87 x 2.12 inches
- Manufacturer: Hertz
10. Warranty Information
The Hertz Venezia V5-5-Channel Marine Amplifier comes with 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. The warranty does not cover damage caused by improper installation, accident, misuse, abuse, negligence, or unauthorized modification.
11. Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact your authorized Hertz dealer or visit the official Hertz website for support resources. When contacting support, please have your amplifier model number (Venezia-V5) and proof of purchase readily available.
