AYRE TK-8150 - Manual (Page 18)

After entering the setup mode, the front panel will display “ Set1
[current name] ”, where “ current name ” indicates the name currently
selected for input 1. (The factory default setting is “ Unused ”,
which de-activates input 1.)
Use the left-hand knob to select which input ( 1 - 8 ) you wish to
configure. Then press the right-hand button to enter the next
menu level. The left-hand knob will select which setting you
wish to configure for that input.
18
Name
Offset
Balance
Gain
AyreLink
Set1 [current name]