Introduction
The Rockville RGHR-ZA is a four-zone marine receiver designed for boats and marine applications, allowing you to connect multiple speakers, amplifiers, subwoofers, and external media sources. This guide will walk you through each wire input and output to help you set up your system properly.
Power and Wiring Connections
At the back of the receiver, you’ll find various power, speaker, and signal connections.
Power Wires
- Red Wire (ACC/Accessory Wire) → Connects to the ignition of your boat, ensuring the receiver powers on when the boat does.
- Yellow Wire (12V Power) → Connects to the 12V power terminal of the house battery to supply constant power.
- Black Wire (Ground Wire) → Connects to the Ground Terminal of the house battery.
- Blue Wire (Remote Out) → Connects to the remote turn-on terminal of an amplifier, so the amp powers on when the receiver does.
Important Note:
For this demonstration, the ACC wire is connected directly to the 12V battery. However, in an actual boat setup, this wire should be connected to the boat’s ignition switch.
Boat Battery Configuration
- Boats typically use a two-battery system:
- One engine battery (for starting the boat)
- One house battery (for running electronics)
- The receiver and all audio equipment should be connected to the house battery.
Speaker Zone Connections
Since this is a multi-zone receiver, it allows you to connect multiple speakers in different areas of your boat, each with independent volume control.
Zone 1 – High-Powered Speaker Connections (Wired Directly)
Zone 1 has dedicated high-power speaker wires for front and rear speakers.
| Speaker | Wire Color | Positive | Negative |
|---|---|---|---|
| Front Left | White Wires | Plain White | White with Black Stripe |
| Front Right | Gray Wires | Plain Gray | Gray with Black Stripe |
| Rear Left | Green Wires | Plain Green | Green with Black Stripe |
| Rear Right | Purple Wires | Plain Purple | Purple with Black Stripe |
Note: These speaker wires can be connected directly to speakers without an amplifier.
Zones 2 & 3 – RCA Outputs for Amplified Speakers
Zones 2 and 3 use RCA outputs to connect to an external amplifier, allowing you to power more speakers.
- Take an RCA cable and plug one end into the RCA outputs labeled Zone 2 or Zone 3 on the receiver.
- Plug the other end into available amplifier inputs.
- Connect additional speakers to the amplifier.
Subwoofer Output
- Dedicated Mono RCA Subwoofer Output for adding a powered subwoofer.
- To connect:
- Use an RCA Y-cable.
- Plug the single RCA end into the Sub Output of the receiver.
- Plug the dual RCA ends into:
- The RCA inputs of a powered subwoofer, or
- The RCA inputs of an amplifier that powers the subwoofer.
Additional Inputs and Outputs
The receiver includes multiple inputs and outputs for additional connectivity.
| Connection Type | Purpose |
|---|---|
| Gray RCA AUX Input | Connects MP3 players or external devices. |
| USB Input | Plays music, movies, or pictures from a USB drive. |
| USB Extension Cable | Included for easier access to the USB port. |
| Antenna Input | Strengthens the signal for AM/FM radio reception. |
| RCA Camera Input | Connects a backup camera for docking assistance. |
| Brown Wire (Camera Trigger Wire) | Triggers the backup camera display when reversing. |
| RCA Video Input | Allows a DVD player or external video source to be displayed on the receiver’s screen. |
| RCA Video Output | Sends video output to other displays on your boat. |
Using the Backup Camera Feature
- The brown wire acts as the camera trigger wire.
- When the boat is in reverse, this wire receives voltage, switching the display to the backup camera feed.
- Once the boat is out of reverse, the receiver’s display returns to normal.
Front Panel Controls
On the front of the receiver, you’ll find buttons for navigation and control.
These allow you to:
- Adjust volume per zone
- Change input sources (USB, AUX, Bluetooth, AM/FM)
- Control playback and radio stations
- Switch to camera mode when needed
Conclusion
The Rockville RGHR-ZA Four-Zone Marine Receiver is a versatile and powerful audio system for boats and marine applications. By understanding its wiring, inputs, and outputs, you can set up a fully customized sound system with multiple speaker zones, amplifiers, subwoofers, and external media sources.
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