11
Input 2
+ -
Flat / Speech
Override / OFF
50-100 V / OFF
24
23
22.
20. Input 3
Input 3 is an unbalanced line input. The sensitivity is adjusted using
the control on the front panel.
The source may be connected using the RCA connector (L/R) or the
Phoenix screw terminal, but can't be used simultaneously.
If the RCA input is used:
Mono signals are connected through R
or
L
and
the earth connection.
Stereo signals are connected through R
and
L
and
the earth connection.
21. Input 2
Input 2 is a line input, switchable between a balanced line input and
a 50-100V line input. The sensitivity is adjusted using the control on the
front panel.
The source is connected using the Phoenix screw terminal:
Mono signals are connected to +
or
- and the earth connection.
Stereo signals are connected to +
and
- and the earth connection.
22. Speech enhancement (Flat/Speech) (DIP switch 1)
The speech enhancement function works by filtering low frequencies (<150Hz) which can
mask the intelligible sound. It is recommended to use this function for all normal loop
systems.
With the DIP switch in the ‘
down
’ position, speech enhancement is
OFF
.
With the DIP switch in the ‘
up
’ position, speech enhancement is
ON
.
Note
When commissioning the loop system in accordance with the performance standard IEC
60118-4, the speech enhancement function must be switched off.
23. 50-100 V/Line (DIP switch 2+3)
With both DIP switches in the ‘
down
’ position: Input 2 is set to
50-100V line sensitivity
.
With both DIP switches in the ‘
up
’ position: Input 2 is set to
"normal" line sensitivity
.
For sensitivity levels, see technical specification on page 22-23.
L
R
L
R
Input 3
