Boulder Amplifiers 1012 DAC Preamplifier - Manual (Page 29)

If you chose to assign a name, then “A1 ANALOG INPUT 1” will
be shown in the bottom display row with a blinking cursor before the
name’s first character. Rotate the control until the desired character
appears. Press the same input source number to accept the displayed
character and go to the next character. Continue in this manner until all
17 characters are set. For example, “Boulder” can be set.
NOTE: The space character is just before the exclamation mark (!).
INPUT POLARITY
Input polarity is used to match the 1012’s input polarity to that of
each individual source. If uncertain of a particular source’s polarity,
check the source’s owners manual or consult with its manufacturer.
After the last character is assigned, pressing the same input source
number will make “INPUT PIN 2 POSITIVE” show in the bottom display
row. As you rotate the volume control to “INPUT PIN 3 POSITIVE” the
polarity relays will immediately activate. After the desired polarity
is selected, or if no change is desired, press the same input source
number.
4-2
PROGRAMMING