Master mutes above -2.5db

[Alex b]

Hi,
if I understand you correctly you have switched master and slave and then the same issue occurs on the other amp as well.
Then it can only be a configuration issue. Have you tried to create a new configuration with the default values ?
I had similar problems when changing the "relative Level" value in the speaker configuration to higher values.
Are you using this setting ?

Hi, 

Many thanks for your reply, yes, it happens with both amplifiers when they are set up as master. Tonight i will try to create a new configuration. I cannot remember if i have changed the relative levels, but i will try it again with default values.
i have connected my Delialets with Sonus faber Armati Futura, but i can easily checked it also on a set Magico's. Maybe the SAM causes some issues. I will keep you posted. 
Once again many thanks