RW8CA: Wires, Inputs & Outputs

Introduction

The Rockville RW8CA Active Subwoofer is a compact yet powerful subwoofer designed for easy integration into your vehicle’s sound system. This guide will walk you through all wires, inputs, and outputs, ensuring a seamless setup.

Power Connections

On the front panel, you’ll find the power terminals, which include:

1. 12V Power Line – Connects directly to the 12V battery of your vehicle.
2. Remote Turn-On Wire – Connects to the ignition or accessory switch of your car, turning the subwoofer on when the vehicle starts.
3. Ground Line – Connects to the metal chassis of the vehicle for proper grounding.

Once all these connections are secure, refer to the status lights on the subwoofer to confirm functionality:

• Power Light (Green) – Indicates that the subwoofer is powered on and working.
• Protect Light (Red) – Illuminates if there is an issue, such as overheating or a wiring problem.

Audio Controls and Adjustments

The RW8CA Active Subwoofer includes multiple controls to customize its performance:

1. Auto Turn-On Switch – Engaging this allows the subwoofer to power on automatically when it detects a signal from your vehicle’s battery.
2. Phase Switch (0° or 180°) – Adjusts the polarity of the subwoofer. If the bass sounds out of sync with your other speakers, toggle this switch to see which setting blends best.
3. Low Pass Filter – Determines which low-end frequencies play through the subwoofer. Example:
   • Set to 100Hz, only frequencies 100Hz and below will be played.
4. Bass Boost – Increases the bass output by up to 18dB for extra low-end punch.
5. Input Gain Control – Adjusts the overall level of the subwoofer.
   • A proper gain adjustment prevents distortion and ensures balanced sound.

Audio Input Options

1. RCA Input (Low-Level Input)

• Used to connect the subwoofer to your head unit or audio source with RCA outputs.

2. High-Level Input (Speaker Wire Input)

• If your head unit lacks RCA outputs, use the high-level input:
  • Plug the high-level wire harness into the high-level input on the sub.
  • Connect the remaining wires to the high-level speaker outputs of your head unit.

Additional Features

1. Bass Remote Knob Input
   • The remote input port allows you to connect an optional bass knob, which can be mounted in the front of your vehicle.
   • This lets you adjust the subwoofer volume without needing to access the unit directly.
2. Fuse Protection
   • The built-in fuse protects the subwoofer from power surges or electrical faults.
   • If the subwoofer stops working, check the fuse and replace it if necessary.

Installation and Placement

• The RW8CA Active Subwoofer is compact and fits under the driver’s seat or passenger seat.
• If needed, use the included mounting hardware to secure the subwoofer in another location within the vehicle.

Conclusion

The Rockville RW8CA Active Subwoofer is a versatile and easy-to-install subwoofer with multiple input options, powerful tuning controls, and a compact design. Whether connecting via RCA or high-level inputs, adjusting bass settings, or using a remote control knob, this guide ensures proper setup and optimal performance.