AKG Rhythm Pack D 112 User Manual page 12

The following problems are often due to incorrect
widng or a poor soldering joint: ·
• Hum (shield soldered poorly or to wrong pin)
• Microphone signal too low (incorrect wiring,
missing bridge for unbalanced operation)
• "Dead" microphone (short circuit in connector
due to poor soldering; cable break)
• Phase problems: Hold two microphones very
close to each other and talk into them. If there is
no bass, the connections to pins 2 and 3 in one
of the XLR connectors have been reversed.
Impedance
The D 112 is a low- impedance microphone
(200 ohms) and may be conncected to practically all
mixers, multitrack recorders, etc. without any
problems. High impedance inputs of older
equipment require a t: 10 step- up transformer at
the equipment end of the cable.
22
Safety Ground:
Make sure the mixer or other equipment you
connect your microphone to is adequately grounded.
The D 112 case will be automatically connected to
this safety ground.
Microphone Care:
In order to protect your microphones from dirt and
damage, store and transport them in their original
packages ·or in
a
specialized carrying case.
To clean the enameled case, use a cloth moistened
with water or diluted alcohol if the case is badly
soiled.