7
STARTING THE MIXER
Plug the power supply’s connection cable into the ARTHUR PRIME’s DC IN connector (see page 10). ARTHUR
has no on/off switch: when your mixer is not in use, its power supply should be disconnected.
Note: The linear power supplies can be switched on or off using the on/off switch on the power supply itself.
Before switching on the mixer, make sure that the master faders are down. This will avoid power-on “pops”
from any loudspeakers that may have been left on by accident. In any case, a mixer should always be
turned on before any of the subsequent devices in the audio chain.
IMPORTANT: Once the mixer is powered up, the audio electronics’ DC regulators need about two minutes
to balance all the DC levels in the circuitry. You can start using the mixer after just 10 seconds, but the slightly
unbalanced DC levels will reduce the dynamic and you might hear a “click” noise when pressing some of
the buttons, or a slight “crackle” when operating the rotary controls! These effects will disappear after the
two minutes.
At all times, and particularly before important recordings, the mixer should be
warmed up and run for about half an hour before any serious work begins.
