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Note:
If you leave one of the channels unused we recommend to minimise its volume to avoid unneces-
sary noise contribution.
The Line-Out signal can be selected by pressing (8). See chapter 5.2 for complete descrip-
•
tion.
Now the VL3x0 is ready for operation!
4 Operation
4.1 Speaker placement
A few hints on feedback prevention:
•
When placing the microphone make sure its sonically least sensitive side points in the direc-
•
tion of the speakers highest sound pressure. In the case of the commonly used cardoid
microphones this will be given if the microphones' diaphragm is opposing the loudspeakers'
front side in 90° of angle
In other cases such as microphones exhibiting bidirectional characteristics whose backward
sensitivity is not sufficiently low a slightly sidewards turned placement of the speakers is
recommendable.
Keep the microphones' speaking distance low to minimise the needed gain. Maximise the dis-
•
tance between microphone and loudspeakers. Also, avoid using dramatic tone control boosts.
Regard these points as a guideline only – other circumstances may require different approach.
9
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