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Verfügbare Sprachen
GENERAL INFORMATION
The BAL-AMP C 48 is a single-channel unit for
post-balancing of unbalanced audio sources.
Balancing is provided electronically by a specia-
lized integrated circuit.
The technical specifications of the audio source
to be equipped will be affected only very slightly
and practically remain unchanged.
The very compact dimensions of the BAL-AMP
C 48 will in most cases allow easy installation.
POWER SUPPLY
The BAL-AMP C 48 has been designed for ba-
lanced supply voltages, which are available in
virtually any contemporary audio devices.
Supply voltages from +/-12 to +/-18 V will be
accepted. Of course, the modul`s maximum
achivable output level is tied to the available
voltage.
The technical Specifications described later, are
related to +/-15V supply voltage.
The module`s current consumption sums to a
maximum of 20 mA and therefore appears as a
negliglible additional load to the equipped devi-
ce`s power supply.
GAIN
Depending on the input pin, the module can be
operated with either 0 dB or +6 dB of gain.
HINT:
It is recommended to operate C48 in the +6 dB
mode because of better electronical adaption.
INSTALLATION
The XLR-type connectors used may be easly fi-
xed by two metal screws of 2.9 mm diameter.
If the device to be equipped shows none of the
required mounting holes, the suitable drilling
pattern found in this manual will make the ne-
cessary mechanical alterations easy.
CONNECTIONS
The signal and supply voltage connections are
made by pin rows. Make absolutely sure that
the voltages applied are in proper polarity!
ERRORS IN POLARITY MAY RESULT IN
DESTRUCTION OF THE MODULE ITSELF
OR DAMAGE TO THE PRECEDING
OR SUBSEQUENT CIRCUITRY!!!
Try several possibilities of grounding the pin
marked as "GND", in order to achieve optimum
signal quality with a minimum hum. To further-
more help solving hum problems, a ground lift
jumper is provided on the circuit board Try se-
veral possibilities to avoid or minimize hum pro-
blems.
Before applying power to the altered device:
MAKE ABSOLUTELY SURE THAT ALL
CONNECTIONS ARE MADE IN
CORRECT ORDER!!!!
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