1. Introduction
The Soundavo WS66i is a 6-source, 6-zone multi-room audio amplifier designed to distribute audio throughout your home or commercial space. This system allows you to enjoy different audio sources in various rooms simultaneously or synchronize music across all zones. It features wireless app control, built-in streamers, and compatibility with a wide range of audio devices and streaming services.

Figure 1: Soundavo WS66i Amplifier and Control App Interface
This image displays the Soundavo WS66i amplifier, a black rack-mountable unit, alongside a smartphone showing its multi-room audio control application. The app interface indicates individual zone control for various rooms like Living, Kitchen, Office, Patio, Bedroom, and Family, with volume levels and selected media sources.
2. Key Features
- 6-Source, 6-Zone Amplification: Delivers 50W x 2 amplification per zone to 6 audio zones, supporting up to 12 speakers. Expandable to 18 zones with additional units.
- Integrated Music Streamers: Two built-in streamers allow simultaneous streaming of different music to any zone from a single mobile device, or multiple users can stream different music.
- Wireless App Control: Full control via the WS66i Control App (available on Google Play and Apple App Store) for input source selection, volume adjustment, EQ, mute, and custom zone renaming.
- Broad Compatibility: Supports AirPlay, DLNA, UPnP, NAS, USB, and popular streaming services including Spotify, Tidal, Pandora, TuneIn, DEEZER, and iHeartRadio.
- Flexible Audio Outputs: Each zone features both "Speaker Out" and "Preamp Out" for connecting external power amplifiers, additional speakers, or powered subwoofers.
Video 1: WS66i Amplifier Introduction
This video provides an introduction to the Soundavo WS66i amplifier, highlighting its multi-room audio capabilities, app control, and various input/output options. It demonstrates how the system can distribute different audio sources to multiple zones within a home.
3. Setup
3.1 Unpacking and Inspection
Carefully unpack the WS66i amplifier and inspect it for any signs of damage. Ensure all components listed in the packing list are present. Keep the original packaging for future transport or service needs.
3.2 Connecting Speakers
The WS66i supports up to 12 passive speakers across 6 zones. Connect your speakers to the "SPEAKER-OUTPUT" terminals on the rear panel. Ensure correct polarity (+ to + and - to -) for optimal sound quality. For each zone, you can connect two speakers (left and right channel).

Figure 2: Basic Setup Steps
This diagram illustrates the four basic steps for setting up the Soundavo WS66i amplifier: 1) Connecting speakers to the rear panel terminals, 2) Connecting the LAN port to a router, 3) Connecting the power cable and pressing the power button, and 4) Opening the WS66i Control App.
3.3 Audio Source Connections
The WS66i offers multiple input options:
- Analog Inputs (RCA): Connect external audio devices like CD players, turntables (with a pre-amp), or other media players to the RCA inputs (Source 1-6).
- Digital Inputs (Optical/Coaxial): For high-quality digital audio sources.
- USB Input: Connect a USB drive for local music playback.
- Network Streaming: Utilize the built-in Wi-Fi streamers for streaming from compatible devices and services.

Figure 3: Rear Panel Connections
This image shows the detailed rear panel of the Soundavo WS66i amplifier, illustrating various connection points including speaker outputs for six zones, pre-amp outputs, RCA inputs for multiple sources, digital inputs, USB, Ethernet ports, and power input. It highlights the versatility of connecting different audio devices.
3.4 Network Connection
Connect the WS66i to your local network using an Ethernet cable from the amplifier's LAN port to your router. This enables app control and access to network streaming features.
3.5 Powering On
After all connections are secure, connect the power cable to the amplifier and a power outlet. Press the power button on the front panel to turn on the unit.
4. Operating the WS66i
4.1 WS66i Control App
The primary method of control is through the WS66i Control App. Download it from the Apple App Store or Google Play. The app allows for quick setup and network connection, typically within 60 seconds.

Figure 4: App Interface for Zone Control
This image shows a hand interacting with a smartphone displaying the Soundavo WS66i multi-room audio control application. The app interface allows users to manage individual zones, adjust volume, and select audio sources for different rooms in their home.
4.2 Zone Control
- Volume Adjustment: Adjust individual zone volumes using the "+" and "-" symbols in the app.
- Source Selection: Select the desired audio input source for each zone.
- EQ and Balance: Fine-tune bass, treble, and balance settings for each zone.
- Mute: Mute individual zones as needed.
- Zone Naming: Customize zone names (e.g., Living Room, Kitchen) for easy identification.
- Party Mode: Activate "Party Mode" to play the same music across all zones.

Figure 5: App Control Features Explained
This image provides a detailed breakdown of the Soundavo WS66i app's control features, including "All Zone On/Off & Party Mode," "Zone" selection, "Volume Control," "Select an Input Source," "Master & Slave Selection," and "Zones On/OFF" indicators. It visually explains how to navigate and utilize the app for comprehensive audio management.
4.3 Streaming Music
The WS66i supports various streaming protocols and services:
- AirPlay/DLNA/UPnP: Stream audio wirelessly from compatible devices.
- Online Music Services: Access Spotify, Tidal, Pandora, TuneIn, DEEZER, iHeartRadio, and more directly through the app.
- NAS and Local Playback: Play music from Network Attached Storage (NAS) or local files on your device.
Video 2: About the Soundavo WS66i Whole-Home Audio Amplifier
This video provides further details on the Soundavo WS66i, explaining its features for whole-home audio distribution, including the ability to stream music from various sources and control different zones independently or in party mode. It emphasizes the system's flexibility and ease of use for a comprehensive audio experience.
5. Expansion
If 6 zones are insufficient for your audio distribution needs, the WS66i system is expandable. You can connect up to two M66-EXT expansion power amplifiers (sold separately) to the WS66i to achieve a total of 18 audio zones. This allows for a scalable whole-home audio solution.
6. Maintenance
To ensure the longevity and optimal performance of your Soundavo WS66i amplifier, follow these general maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid using liquid cleaners or aerosols, as they may damage the finish or internal components.
- Ventilation: Ensure the amplifier has adequate ventilation. Do not block the ventilation openings. Avoid placing the unit in enclosed spaces without proper airflow.
- Environment: Operate the amplifier in a dry environment, away from direct sunlight, heat sources, and excessive moisture.
- Power: Disconnect the power cable from the wall outlet if the unit will be unused for an extended period.
7. Troubleshooting
If you encounter issues with your Soundavo WS66i amplifier, consider the following basic troubleshooting steps:
- No Power:
- Check if the power cable is securely connected to both the amplifier and the power outlet.
- Verify that the power outlet is functional.
- Ensure the power button on the front panel is pressed.
- No Sound:
- Confirm that speakers are correctly connected to the "SPEAKER-OUTPUT" terminals with correct polarity.
- Check the volume level for the specific zone in the control app. Ensure it is not muted.
- Verify that the correct audio source is selected for the zone.
- Ensure the audio source device is powered on and playing content.
- App Connectivity Issues:
- Ensure the amplifier is connected to your router via Ethernet.
- Verify that your mobile device is connected to the same Wi-Fi network as the amplifier.
- Restart the WS66i Control App and/or your mobile device.
- Restart the amplifier and your router.
- Distorted Sound:
- Check speaker connections for loose wires or incorrect polarity.
- Reduce the volume level to see if distortion persists.
- Ensure the audio source is not overdriven or producing distorted output.
- Adjust EQ settings in the app.
If these steps do not resolve the issue, please refer to the Warranty and Support section for further assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 19"D x 17"W x 3.5"H (48.26 cm D x 43.18 cm W x 8.89 cm H) |
| Item Weight | 31.7 pounds (14.38 kg) |
| Model Number | WS66i-AMP |
| Connectivity Technology | Ethernet |
| Controller Type | Remote Control, App Control |
| Special Feature | Multiroom Audio |
| Compatible Devices | Laptop, Smartphone, Tablet |
| Connector Type | RCA, 3.5mm Jack, Optical, USB Type A, RJ45 |
| Audio Output Mode | Stereo, Mono |
| Surround Sound Channel Configuration | 6.0 |
| Color | Black |
| Manufacturer | Soundavo |
| Date First Available | March 8, 2023 |
9. Warranty and Support
The Soundavo WS66i amplifier comes with an exclusive 3-year factory warranty. This warranty covers the original owner for any manufacturing defects during the specified period. Our dedicated technical support team is available to assist with any questions or issues you may encounter.
For support, please contact Soundavo customer service via email or visit their official website for more information. Contact details are typically provided in the product packaging or on the manufacturer's website.