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iK81 / iK42
USER GUIDE
See also Snapshots.
Input
AES3 Inputs
In addition to the usual analogue inputs, the Device can also accept AES3 digital inputs. When a DSP input channel is assigned to
an AES3 channel, the "AES3" indicator will illuminate.
There is no 'standard' for the relative gains between Analogue and AES3 so depending on the levels delivered by the audio
source, it may be necessary to adjust the digital input gain trims to normalise them. It is possible to adjust the gain of the AES3
input using the Input Trim AES3 Gain parameter. For example, to achieve 0dBFS = +18dBu, set the AES3 trim to -2dB. To achieve
0dBFS = +24dBu, set the trim to +4dB.
This device will automatically lock onto any sample rate within the range 28kHz and 108kHz.
Dante™ Inputs
Using the Dante input, it is possible to select any channel(s) as being sourced from this network. To do this, connect the audio
network connection to the connection on the rear of the Device, and set the relevant Input Type menu Type parameter to
"Dante".
When the Dante has been selected as part of the input routing, the "Dante" indicator above the encoders will illuminate. This
indicator will come on even if there are no cables plugged into the networked audio port on the Device.
As for the AES3 inputs, it is possible to set the relative gain between an Analogue input and the signals sourced from the Dante
using the Input Trim Dante gain parameter.
The amplifier will automatically select the correct sample rate from the incoming stream.
For other details on the operation of the Dante, please refer to the relevant manufacturer's documentation.
Automatic Input Selection (Fallover)
It is possible to configure the input selection to be automated. The Input TYPE screen has a Fallover parameter, which defaults
to Manual, allowing you to select what Type of input you wish to use. When Fallover AES3>Analogue is selected (on an input
channel which supports AES3), then the AES3 source will be automatically selected if it has a valid audio stream on it. If the AES3
stream should fail, then Analogue is automatically selected instead.
When Fallover Dante>Analogue is selected (when the Dante option is fitted), then the Dante source will be automatically selected
if it has a valid audio stream on it. If the Dante stream should fail, then Analogue is automatically selected instead.
Similarly, it is possible to select Fallover Dante>AES3 on a channel that supports AES3 and Dante is present.
The 'Auto' setting allows the highest priority input source that is active to be automatically selected, so the user could just plug
a source into any input and it will be automatically selected. The priorities are: Dante first, AES3 second, Analogue third.
Note that any automatic selection will take precedence over manual selection, so if you try to manually select Dante when there
is no valid Dante stream, then it will revert to the Fallover input source.
Gain and Polarity
The gain page of the input channel selected allows users to increase or decrease the amount of signal going into the selected
input. Using the "SELECT" encoder to highlight the Gain value allows the value to be changed by the "ADJUST encoder in 0.2dB
iK81 / iK42 User Guide V2.3
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