--- title: 8 Microphone setup (Daisy-Chaining Two Hubs) description: Step-by-step guide to setting up the Catchbox Plus system with 8 microphones using two daisy-chained Hub receivers. --- [Skip to content](https://help.catchbox.com/knowledge/8-microphone-setup-daisy-chaining-two-hubs#main-content) - [Catchbox Plus](https://catchbox.com/plus-system) - [Case studies](https://catchbox.com/case-study/) - [Book a demo](https://explore.catchbox.com/book-demo?hsCtaTracking=26c83435-1828-4cad-b17a-14b537503736%7C17332728-d507-4382-827d-62d2279a4c0e) Open main navigation Close main navigation - [Catchbox Plus](https://catchbox.com/plus-system) - [Case studies](https://catchbox.com/case-study/) - [Book a demo](https://explore.catchbox.com/book-demo?hsCtaTracking=26c83435-1828-4cad-b17a-14b537503736%7C17332728-d507-4382-827d-62d2279a4c0e) - [Leave a Review](https://share.hsforms.com/2asY8tj1LSo2Wb24hR2X_GA292ev) [Leave a Review](https://share.hsforms.com/2asY8tj1LSo2Wb24hR2X_GA292ev) How can we help? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://help.catchbox.com/knowledge?hsLang=en) 2. [Product Setup](https://help.catchbox.com/knowledge/product-setup?hsLang=en) 3. [Product Setup](https://help.catchbox.com/knowledge/product-setup?hsLang=en#product-setup) # 8 Microphone setup (Daisy-Chaining Two Hubs) ## Step-by-step guide to setting up the Catchbox Plus system with 8 microphones using two daisy-chained Hub receivers. [What will you get?](https://help.catchbox.com/knowledge/8-microphone-setup-daisy-chaining-two-hubs#get) [Audio flows diagram](https://help.catchbox.com/knowledge/8-microphone-setup-daisy-chaining-two-hubs#flows) [What will you need?](https://help.catchbox.com/knowledge/8-microphone-setup-daisy-chaining-two-hubs#need) [Step-by-step instructions](https://help.catchbox.com/knowledge/8-microphone-setup-daisy-chaining-two-hubs#instructions) [Wiring and mix diagram](https://help.catchbox.com/knowledge/8-microphone-setup-daisy-chaining-two-hubs#wiring) ⬇️ **[Download Scenario PDF file](https://help.catchbox.com/hubfs/Hub%20daisy-chaining%20scenario.pdf?hsLang=en)** ### **What will you get?** - All audio flows mixed and managed from Catchbox Hub DSP - Catchbox mic audio and far-end audio amplified in the room - Eight Catchbox microphones automixed on a single audio feed for video-conferencing ### **Audio flows diagram** **![Hub Daisy chaining](https://help.catchbox.com/hs-fs/hubfs/Hub%20Daisy%20chaining.png?width=670&height=484&name=Hub%20Daisy%20chaining.png)** ### **What will you need?** - Two Catchbox Plus systems with microphones **NB!** IN this scenario we will use the following naming for the Hubs: **Primary** - connected to the video-conferencing computer **Secondary** - connected to the Primary - Catchbox 3pin-to-3pin cables - 4 pcs (purchased separately) - Video-conferencing computer ### **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](https://help.catchbox.com/knowledge/how-to-pair-catchbox-mics-with-the-hub?hsLang=en). **2. Connect the cables** - **USB for Primary** - connect your Primary Hub DSP to your video-conferencing computer using the included USB-C cable to provide power and audio connection. - USB for Secondary - connect your Secondary Hub DSP to a power source using the included Catchbox USB-C Power adapter. **3. Configure your Primary Hub** - Configure FLEX ports to operate as inputs `GLOBAL SETTINGS → SYSTEM → FLEX MODE → INPUT` - Configure all FLEX ports to MICROPHONE MODE `IN → FLEX → FLEX 1..4 → CHANNEL SETTINGS → MICROPHONE MODE` **Note:** It is recommended to route the microphone signals via the Automixer (MICROPHONE MODE). If your external device is a media signal (music, soundtrack etc), it is recommended to route it bypassing the Automixer (MEDIA MODE). - Configure audio mix for video-conference on USB OUT (MIXOUT) `OUT → MIXOUT → USB OUT → CHANNEL SETTINGS → MIX CONFIGURATION → ` `MIC  1–4, ENABLED` `FLEX IN 1-4 ENABLED` **NB!** Disable all other signals. - Due to subsequent digital-to-analog and analog-to-digital audio signal conversion, the audio levels are slightly different between the mics on the Primary Hub and mics on the Secondary Hub and thus it is recommended for daisy-chaining Catchbox microphones to set Input Gain settings for all FLEX inputs to -5dB `IN → FLEX → CHANNEL SETTINGS → GAIN → -5dB` **4. Configure your Secondary Hub** - Configure FLEX ports to operate as outputs `GLOBAL SETTINGS → SYSTEM → FLEX MODE → OUTPUT` - Make sure that for all FLEX output channels the "CHANNEL CLONING" setting is "DISABLED" `OUT → FLEX → CHANNEL SETTINGS → CHANNEL CLONING -> DISABLED` **5. Connect the audio cables in both Hubs** - Before connecting the cables - disconnect the USB power from both Hubs **NB!** There is no risk of losing the saved settings - the Hubs will store them in the permanent memory that is not erased by power cycling. - Connect the 3pin connectors - use Catchbox 3pin-to-3pin cables to connect FLEX 1 port on the Primary with FLEX 1 port on the Secondary, FLEX 2 on Primary with FLEX 2 on Secondary and so on. - Connect the USB connectors to power both devices. **6. Configure your video-conferencing computer** - 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**  **![Daisy-chaining](https://help.catchbox.com/hs-fs/hubfs/Daisy-chaining.jpg?width=670&height=708&name=Daisy-chaining.jpg)** `` - [Catchbox Plus System](https://help.catchbox.com/knowledge/catchbox-plus-system?hsLang=en#main-content) - [Overview](https://help.catchbox.com/knowledge/catchbox-plus-system?hsLang=en#overview) - [Hub DSP receiver](https://help.catchbox.com/knowledge/catchbox-plus-system?hsLang=en#hub-dsp-receiver) - [Hub features](https://help.catchbox.com/knowledge/catchbox-plus-system?hsLang=en#hub-features) - [Stick Mic](https://help.catchbox.com/knowledge/catchbox-plus-system?hsLang=en#stick-mic) - [Clip Mic](https://help.catchbox.com/knowledge/catchbox-plus-system?hsLang=en#clip-mic) - [Cube Mic](https://help.catchbox.com/knowledge/catchbox-plus-system?hsLang=en#cube-mic) - [System Firmware](https://help.catchbox.com/knowledge/catchbox-plus-system?hsLang=en#system-firmware) - [Product Setup](https://help.catchbox.com/knowledge/product-setup?hsLang=en#main-content) - [Product Setup](https://help.catchbox.com/knowledge/product-setup?hsLang=en#product-setup) - [Product Setup for Integrations](https://help.catchbox.com/knowledge/product-setup?hsLang=en#product-setup-for-integrations) - [How-to's](https://help.catchbox.com/knowledge/product-setup?hsLang=en#how-tos) - [Product Features](https://help.catchbox.com/knowledge/product-setup?hsLang=en#product-features) - [DECT Radio Protocol](https://help.catchbox.com/knowledge/product-setup?hsLang=en#dect-radio-protocol) - [Ordering & Shipping](https://help.catchbox.com/knowledge/ordering-shipping?hsLang=en#main-content) - [How to Order Plus System](https://help.catchbox.com/knowledge/ordering-shipping?hsLang=en#how-to-order-plus-system) - [Shipping](https://help.catchbox.com/knowledge/ordering-shipping?hsLang=en#shipping) - [Billing](https://help.catchbox.com/knowledge/ordering-shipping?hsLang=en#billing) - [Warranty & Returns](https://help.catchbox.com/knowledge/ordering-shipping?hsLang=en#warranty-returns) - [Microphone Customization](https://help.catchbox.com/knowledge/microphone-customization?hsLang=en) - [Troubleshooting](https://help.catchbox.com/knowledge/troubleshooting?hsLang=en#main-content) - [Technical Troubleshooting](https://help.catchbox.com/knowledge/troubleshooting?hsLang=en#technical-troubleshooting) - [Audio Quality Issues](https://help.catchbox.com/knowledge/troubleshooting?hsLang=en#audio-quality-issues) - [Mic Troubleshooting](https://help.catchbox.com/knowledge/troubleshooting?hsLang=en#mic-troubleshooting) - [Materials](https://help.catchbox.com/knowledge/materials?hsLang=en) - [Remote Control & Monitoring](https://help.catchbox.com/knowledge/remote-control-monitoring?hsLang=en) - [Beltpack Module](https://help.catchbox.com/knowledge/beltpack-module?hsLang=en) - [Discontinued](https://help.catchbox.com/knowledge/discontinued?hsLang=en#main-content) - [Catchbox Legacy Plus](https://help.catchbox.com/knowledge/discontinued?hsLang=en#catchbox-legacy-plus) - [Catchbox Mod](https://help.catchbox.com/knowledge/discontinued?hsLang=en#catchbox-mod) Copyright © 2026, Catchbox SIA