RPA40BT: How To Create Multi-Room Home Audio System

Introduction

The Rockville RPA40BT is a versatile amplifier that allows you to create a multi-room home audio system with either a mono or stereo setup. This guide will walk you through:

• Setting up a one to four-room audio system
• Choosing the right speaker impedance and wiring method
• Using wall volume controllers for independent volume control
• Configuring both mono and stereo multi-room setups

Step 1: Planning Your Multi-Room Setup

Before starting, decide:

1. How many rooms you want to connect (up to four in mono, or two in stereo).
2. How many speakers per room based on impedance requirements.
3. Where to run your wiring for a clean and organized setup.

Step 2: Setting Up a Four-Room Mono Audio System

1. Connecting Speakers to the Amplifier

• The RPA40BT has four channels (A, B, C, and D), each acting as a separate zone:
  • Channel A → Room 1
  • Channel B → Room 2
  • Channel C → Room 3
  • Channel D → Room 4
• Set the amplifier to MONO mode by pressing the Mono/Stereo button on the back of the amp.
• Each channel will output a balanced mix of left and right audio.

2. Choosing Speaker Impedance and Wiring

Each channel should have a minimum impedance of 4 ohms.

• 1 x 4-ohm speaker per room
• 1–2 x 8-ohm speakers per room (parallel wiring)
• 2–4 x 16-ohm speakers per room (parallel wiring)

Avoid mixing speakers with different impedance values in the same room.

3. Adding a Wall Volume Controller (Optional)

To have independent in-room volume control, you can use a wall volume controller like the Rockville VOL850 or VOL855.

1. Connect speaker wire from the amplifier’s channel output to the input of the wall volume controller.
2. Run another speaker wire from the volume controller’s output to the first speaker in the room.
3. Repeat for each room where you want independent volume control.

If using volume controllers, turn the controller's volume all the way up, then adjust the amplifier’s volume to just below distortion level to set the maximum output for each room.

Step 3: Setting Up a Two-Room Stereo Audio System

In stereo mode, the RPA40BT groups channels into two stereo zones:

• Channels A & B → Room 1 (Left & Right Stereo)
• Channels C & D → Room 2 (Left & Right Stereo)

1. Connecting Stereo Speakers to the Amplifier

• Set the amplifier to STEREO mode by pressing the Mono/Stereo button on the back.
• Run speaker wires from Channel A (Left) and B (Right) to Room 1 speakers.
• Run speaker wires from Channel C (Left) and D (Right) to Room 2 speakers.

2. Using a Wall Volume Controller for Stereo Rooms (Optional)

• Use a stereo wall volume controller like the VOL850 or VOL855.
• Connect the left and right speaker wires from channels A & B to the input of the volume controller in Room 1.
• Connect the speaker wires from the volume controller to the left and right speakers.
• Repeat the same setup for Room 2 using channels C & D.

Set the maximum volume at the amplifier, then use the wall volume controller to adjust the level freely in each room.

Conclusion

The Rockville RPA40BT makes it easy to create a multi-room home audio system with either a mono or stereo setup. Whether you’re powering four rooms in mono or two rooms in stereo, this guide ensures a seamless and organized installation.

With wall volume controllers, you can fine-tune volume in each room, making your home audio experience even more convenient.