6
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POWER-BOX
ITEC POWER-BOX
5. Handling with cable microphone
Plug in the cable microphone in the microphone socket (4) and adjust its volume at the volume control for the
cable microphone (6).
Technical information:
The multi-jack microphone socket (3) lets you plug in microphones with XLR or 1/4” jack.
Use either dynamic microphones or electret condenser microphones.
Connecting balanced microphones: by means of a XLR plug or a stereo ¼” jack.
Connecting balanced microphones with phantomsupply: by means of a XLR plug.
Connecting unbalanced microphones: by means of a mono ¼” jack.
In case you have a long microphone cable, an interference free operation can only be guaranteed when you
use both balanced microphones and balanced microphone cables.
Attenuation adjustment: while speaking into the microphone ad-
just the playback volume you want during your announcement.
Attenuation will be started when using a radio microphone or
cable microphone and takes effect on music playbacks via the
line-in socket (external equipment) and any built-in devices (tape
recorder or CD player).
Attenuation is triggered by radio microphones or by a cable
microphone.
We recommend the ITEC EM 300 electret
capacitor microphone
6. Music attenuation (optional)
Should your device have an automatic music attenuation the volume of the music playback will be turned
down while somebody is speaking. You determine the volume of the attenuated playback by means of the
appropriate control (9).
control position left:
while speaking, the music is turned off completely
control position middle:
while speaking, the music volume is halved
control position right:
even while speaking, the music volume remains the same,
i.e. no attenuation at all.
no phantom voltage
signal
1
2
3
1 earth (US = ground)
2
3 signal -
signal
earth (US = ground)
earth (US = ground)
¼” stereo jack, balanced
phantom voltage 12V
XLR plug, balanced
no phantom voltage
¼” stereo jack, unbalanced
signal
