Owners Manual

10
Headphone outputs
The Out jacks can drive headphones as well as line level inputs. The Out controls on the front
of the unit adjust the volume of all of the audio present on the corresponding output.
Each output contains either the Main input audio or the Aux input signal for that channel if the
jack is used. If the Talkback Footswitch or the Talk All switch are active, the Main or Aux audio
are muted (by about 30 dB) and talkback audio is present.
Talkback Footswitch
The Talkback Footswitch jack provides "hands free" access to the Talk All switch. When it
senses a switch closure (between the tip and ground connection of the jack) it activates the
Talk All function of the HeadAmp 4 Pro.
This input is designed to be used with a momentary footswitch that is closed when depressed.
You can use it with a "latching" switch, but you will have to push and release the switch every
time you want to change the talkback all status. The Talkback Footswitch function is designed
to work with pedals without an LED.