User's Manual
Opus 600 – S 600 Handheld Transmitter
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3.5 How to set the low-cut filter
• The EM 981 microphone capsule features a low-cut filter to compensate the close-miking effect
which ususally occurs with directional microphones. To set the low-cut filter unscrew the complete
microphone head with the upper shaft as indicated by the arrows.
• At the bottom of the microphone head you can set the low-cut filter.
• Standard setting: linear (position Lin)
Unscrew microphone head Set low-cut filter
3.6 Maintenance
• Protect the handheld transmitter from humidity, knocks and shock. Avoid dropping the transmitter
at all times.
• For cleaning metal surfaces, use a soft cloth moistened with methylated spirits or alcohol.
• As soon as your microphone sounds dull, you should clean the integrated pop shield. Proceed as
described in the following.
DM 960
• Unscrew the upper part of the microphone basket (turn anti-clockwise).
• Clean it under clear water.
• Let the pop shield dry overnight before you replace it.
• The upper part of the microphone basket cannot be cleaned in a dish-
washer.










