SPL Atmos, Руководство пользователя

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The Atmos unit should not be installed near units which produce strong magnetic
fields or extreme heat. Do not install the units directly above or below power ampli-
fiers.
A main mic array has to be placed the way that the LCR heads of the microphone
(those closer to the microphone center/90° angle) are facing the sound source.
Be sure to place the microphone as high as necessary to avoid ground reflections
and comb filtering effects. Usually the best position for the mic array is right on the
crossing between the direct sound field and the diffuse sound field.
BEFORE switching on the preamp, you have to connect the mic array via the multicore
lead to the Atmos unit. Pay attention to fit the bayonet joints properly. Check that the
voltage details quoted on the back panel correspond to your local mains electricity
supply. Use a minus (-) screwdriver to set the voltage selector to the required voltage.
By the way ... the Atmos uses two 1,6 A slow fuses.
Now switch on the Atmos preamp. Set the mic gain control to the 12 o’clock position.
Now the VU meters indicate modulation.
Chassis ground and AC ground can be disconnected with the Ground Lift switch (GND
LIFT) on the back panel. This can help to eliminate hum.
An AC power cord is included to feed the IEC-spec, 3-prong connector.
Inputs: The microphone inputs are equipped with phantom power supply.
Installation