Yes, it is possible to control the volume of your AXN/MXN when connected via the analog outputs. Pre-amp mode and volume control is not possible when connected via the digital outputs.
To enable Pre-amp mode and volume control on your AXN/MXN, please follow the step-by-step guide below:
Note: Pre-amp mode and volume control is only available with firmware version 132-b-007.
How-to guide
1. While your AXN/MXN is in Standby mode, navigate to the device settings in the StreamMagic app, and set Pre-Amp to 'On'
Note: Do not enable ''Pre-amp' mode while the AXN/MXN is switched on.
2. You will then be able to control the volume of your AXN/MXN via the app volume wheel and your device's volume controls while the app is open. The app volume icon can be found in the 'Now Playing' banner at the bottom of the app screen.