Sometimes firmware updates cause a bug where a channel goes dead, but this can be fixed with a Reset in System Mode. I’ll copy the FAQ entry below.
There are two possible conditions that can make it possible for a channel to become seemingly dead on Quadrax.
- If a CV input is assigned to the LEVEL of a channel and there is nothing present at that input the channel will not output any signal. You should either send a CV signal to control the level of that channel or clear the CV assignment.
Remember: You can quickly and easily clear all CV assignments by pressing and holding one of the left buttons to enter CV Assignment mode, then pressing and holding the bottom right button.
- There was a bug in a recent firmware update where under certain settings channels would become temporarily unresponsive. It is possible to correct this by performing a “Reset to Default” in the Quadrax System Mode. This requires the most recent firmware version and instructions on how to perform this reset are below as well as in the Quadrax manual.
To enter System Mode:
- To put Quadrax into System Mode, hold down the LEVEL button (Channel 4’s MODE/DESTINATION) button while you power on the module. Once in System Mode, you can perform a number of global functions, as discussed in System Mode Options, below.
Reset to Default
- In System Mode, long-press the LEVEL button to reset the module to its default settings.
To exit System Mode: 1. To exit System Mode and save your settings, press the flashing red LEVEL button.