> ## Documentation Index
> Fetch the complete documentation index at: https://docs.solidyne.ar/llms.txt
> Use this file to discover all available pages before exploring further.

# StudioBox Monitor Hub

> StudioBox HD5 and HD3 headphone distributors

The optional **StudioBox HD3** and **HD5** accessories centralize the Studio monitoring connections (headphones and main speakers).

<img src="https://mintcdn.com/solidyne/QHSX4jfzM1QeDLv2/images/accesorios/HD5-HD3.png?fit=max&auto=format&n=QHSX4jfzM1QeDLv2&q=85&s=72226c5f40f1a1f6ee15a734195f48f1" alt="StudioBox HD5 - HD3" width="3840" height="2132" data-path="images/accesorios/HD5-HD3.png" />

Features:

* HD5: 5 headphone outputs with independent volume controls
* HD3: 3 headphone outputs
* Dual listening channels
* Monitor output for the Studio main speakers with level knob on the panel.
* ON AIR tally light
* Reverse talkback from Studio to Control Room
* Timer/Clock (HD5 only)