4.0 INSTALLATION
a) Make sure that the switch on the front of the ABL100 is set to OFF.
Power the device as indicated in chapter 2.0.
b) Connect the incoming unbalanced audio signals using the RCA outlets
c) Connect the destinations to the output terminals of the unit remembering that
signal
a
is in phase with the input where as signal
b
is phase opposed.
The
GND
reference is common to the
L
and
R
channels.
WARNING
The balanced signals may travel on
relative long sections of cables.
In this case, it is advisable to use destinations
with differential or balanced inputs
d) Set the switch on the front of the unit to
ON
.
Check that the led on the front of the unit switches on.
At this point, all the input signals that are unbalanced are balanced on leaving
the unit and with low impedance (600
Ω
).
WARNING
Output level may be adjusted by internal trimmer of
±
6 dB or
±
12 dB
in according to the settings described in chapter 3.0
a)
Remove the power cable from the unit
b)
Remove the cover.
c)
Adjust the trimmer for outputs and for each channel (Ch1 and Ch 2 see fig.
in chapter 3.0).
d)
Replace the cover
e)
Connect the power cable
The unit is factory set at 0 dB gain (Trimmer in the middle position).
ABL 100
OCTAL STEREO AUDIO
BALANCER
ABL 100
OCTAL STEREO AUDIO
BALANCER
1.0 OVERVIEW
Thank you for buying this product.
Check the contents of the packaging carefully.
It contains:
−
The ABL100 unit
−
This handbook
−
The mains cable
The ABL100 unit converts an unbalanced audio signal into a balanced signal. Its
configuration, with 8 incoming and outgoing stereo signals, makes it suitable for
use downstream of 8x8 or higher matrixes.
The ABL100 can also be used as impedance adapter between non-standard
sources and destinations.
The output level of each channel can be adjusted by
±
6dB or
±
12dB according
to the internal setting of a jumper (see Chapter 3.0).
ELPRO BROADCAST s.r.l.
Strada della Pronda 17 - TORINO (ITALY)
Tel. 0117071955 - FAX 011706210
ELPRO BROADCAST s.r.l.
Strada della Pronda 17 - TORINO (ITALY)
Tel. 0117071955 - FAX 011706210
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