Boulder Amplifiers 1012 DAC Preamplifier - Manual (Page 39)

BOULDERLINK MESSAGES
Each component in the system can send a message to the 1012 which
is then shown on its display. This is particularly helpful in confirming
the operating status of each power amplifier in a multiple amplifier
system.
“AMPLIFIER 1 ERROR” means that an internal power supply has
failed and the amplifier has turned itself off to protect the speakers from
damage.
“AMPLIFIER 1 HAS DC” means that it has turned itself off due to a
DC offset voltage being detected at its inputs.
“AMPLIFIER 1 IS HOT” means that is has turned itself off due to a
higher than normal temperature condition on the heatsinks.
“AMPLIFIER CLIP” means that the amplifier’s output has
momentarily reached its voltage limitation.
BOULDER
LINK
5-4