The CAD 120S MKII can drive loudspeaker loads from as low as 2 ohms to a high of 16 ohms without any adjustment.
How do I switch between triode and ultra-linear modes?
Use the push button located on the lower right side of the front panel to toggle between triode and ultra-linear modes. The blue LED indicator lamp above the switch will show the current mode.
How do I power on and power off the CAD 120S MKII?
The front panel push button located to the lower left is the power on/power off selector. Push the button to engage the soft-start system for power on, and push again to power off.