PortaNet User Manual
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PortaNet audio inputs
IV.1
Location
There are four MIC/LINE level inputs, switchable between LINE and MIC level.
Three of them are located on the front panel, and the fourth one is on the rear
panel. Moreover, there is an additional line level input located on the rear panel
which can be mixed to the headphone outputs.
IV.2
Technical specifications
IV.2.1
MIC/LINE level inputs
All the MIC/LINE level inputs are transformer balanced on a XLR female
connector. These inputs are switchable between MIC and LINE levels by
means of a switch placed on the right side of the input connector.
It is possible to supply phantom power (48 volts.) to each input. There is
a switch on the left side of the input connector for this purpose.
When the audio inputs are configured as MIC level inputs, sensibility
range is –60 to –25 dBu.
When phantom power is enabled, the whole gain is decreased by 15
dB to compensate for the the higher output of condenser MICs.
Thus, the gain range will go from –45 to –10 dBu.
When the inputs are configured as LINE level inputs, the maximum input
level will be +20 dBu.
Each input level can be adjusted independently.
IV.2.2
International Sound LINE level input.
Electronically balanced on a XLR female connector.
Maximum input level is +20 dBu
