Hello,
I have a problem with my Headphones (250ohms). The Impact VIII motherboard should automatically detect and optimize any Headphone (32-600ohms). Unfortunately it detects and amplifies my 250 ohms Headphone only when I plug it in the font side audio. If I plug it in the rear directly at the motherboard it won't determine the impedance and therefore won't set the amplifier to Extreme. Is this behavior normal?
I attached two pictures to show the difference.
