Catchbox Plus for Video Conferencing With Analog Media Device and Loudspeakers
Step-by-step guide to setting up the Catchbox Plus system for video conferencing with analog media device* and loudspeakers.
*Analog media device - tablet, mobile phone, DVD player, etc with an analog audio output port.
What will you get?
Audio flows diagram
What will you need?
Step-by-step instructions
Wiring and mix diagram
What will you get?
All audio flows mixed and managed from Catchbox Hub DSP
- Catchbox mics, media audio and far-end audio amplified in the room
- Catchbox mic audio and media audio mixed and sent to far-end
Audio flows diagram

What will you need?
- Catchbox Plus system with microphones
- Media device with analog audio output
- Video-conferencing computer (USB Audio connection to Hub DSP)
Step-by-step instructions
1. Ensure all Catchbox mics are paired with the Hub.- In most cases, the mics are pre-paired before shipping. However, if pairing is required, follow the instructions in this Knowledge Base article.
2. Connect the cables
- USB - connect Catchbox Hub DSP to your video-conferencing computer using the included USB-C cable. It’ll provide power to the Hub DSP and send two-way audio to the computer.
- Active loudspeakers - use appropriate cables to connect your active loudspeakers to “3-PIN L” (Left) and 3-PIN R” (Right) outputs. If necessary, use Catchbox XLR-3PIN Output Adapters (purchased separately).
- Media device - use appropriate cable to connect your media device to the 3-PIN FLEX 1 port (balanced audio). If necessary, use Catchbox XLR-3PIN Input Adapters (purchased separately).
Note: for stereo audio applications you can use two inputs by repeating the above step with FLEX 2 port.
- Alternatively you can connect your media device to the AUX IN input port (3.5mm stereo connector).
- Set Hub DSP to operate in “Speakerpone mode”. It’ll set USB audio to be recognized as both “Microphone” and “Loudspeaker” on the video-conferencing computer.
GLOBAL SETTINGS → SYSTEM → USB DEVICE MODE → SPEAKERPHONE
- Configure FLEX ports to operate as inputs
GLOBAL SETTINGS → SYSTEM → FLEX MODE → INPUT
- Configure FLEX 1 port to MEDIA MODE
OUT → FLEX → FLEX 1 → CHANNEL SETTINGS → MEDIA MODE
Note: It is recommended to route the media signals to bypass the Automixer (MEDIA MODE). If your external device is a microphone, it is recommended to route it via the Automixer (MICROPHONE MODE).
- Configure audio mix for video-conference on USB OUT
OUT → MIXOUT → USB OUT → CHANNEL SETTINGS → MIX CONFIGURATION →
- MIC 1–4 ENABLED
- FLEX IN 1 ENABLED
or
- AUX IN ENABLED
NB! Set all other signals to DISABLED.
NB! Set all other signals to DISABLED.
- Configure audio mix for loudspeakers on MIXOUT 3-PIN
OUT → MIXOUT → 3-PIN → CHANNEL SETTINGS → MIX CONFIGURATION →
- MIC 1–4
- USB-IN ENABLED
- FLEX IN 1 ENABLED
or
- AUX IN ENABLED
NB! Set all other signals to DISABLED.
- In the computer's audio settings select “Catchbox Hub DSP” as a source of "Microphone" and “Loudspeaker” (depending on the OS).
- In the video-conferencing platform’s audio settings select “Catchbox Hub DSP” as a source of "Microphone" and “Loudspeaker” (depending on the platform).
Wiring and mix diagram
