12
PHANTOM POWERING
The use of professional condenser microphones requires so-called
phantom powering.
The MPA RS 01 offers stabilized 48V phantom powering, which is
activated by the "48 V"-button on the front panel.
This voltage is applied to pins 2 and 3 via matched 6.8 kOhm resistors
of
both
input connectors.
Active phantom powering is indicated by the red "ON"-LED.
NOTE:
Switching the phantom power during operation produces low-frequency
voltage swing at the MPA RS 01's output. To avoid damage of monitor
loudspeakers or other equipment, the subsequent input should be
muted when activating or deactivating the phantom power.
NOTE:
If unbalanced equipment such as synthesizers etc. is connected to the
MPA RS 01's inputs, the 48V phantom voltage might cause damage if
the connection is not made properly.
This problem is faced with all phantom powered inputs and can be
avoided by using a transformer coupled D.I. box or by strictly keeping
the unbalanced wiring apart from pin 1 (ground).
Содержание MPA RS 01
Страница 1: ...1 MICROPHONE PRE AMPLIFIER MPA RS 01 USER s MANUAL ...
Страница 17: ...17 JUMPER SETTING MPA RS 01 ...