PortaNet User Manual
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PortaNet audio Outputs
There are three headphone outputs and two general purpose balanced audio
outputs (line level).
V.1
Location
The three headphone outputs are located together on the front panel.
One of the balanced audio outputs is located on the front panel, called
‘aux’, and the other is on the rear panel, and it is called ‘REC’.
V.2
Headphone outputs.
V.2.1
Technical specifications
6.3mm Jack connector
Headphone impedance range: 300 – 2K ohms.
Output Impedance < 25 ohms.
Bandwidth 20Hz-20kHz (1dB).
Maximum output level: 6dBu (8 mW) on 300 ohms.
THD+N < 0.01% @ 1kHz.
SNR < 95 dB.
Independent audio sources (local o return) for left and right.
Independent level adjustment for each output.
V.2.2
Operation mode – Headphones Matrix
The audio sources for the headphones can be selected from the PortaNet
web browser. At the same time, it is possible to define if some of them
will be attenuated depending on which line (program or talkback) its
corresponding input t is connected.
The audio sources that can be selected are: Programa, Cue, Talkback Tx,
Talkback Rx and International Sound.
Program, Cue and International Sound can be selected in each ear
headphone independently.
The following diagram shows how can be configured the headphone
outputs: