UX48 Owners Manual
18
When a Dante channel is routed to an input, the “Dante Audio” 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 Analog input and the signals sourced
from the Digital Audio Network 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 Digital Audio Network, please refer to the relevant
manufacturer’s documentation.
Automatic Input Selection (Fallover)
When a Digital Audio Network input is installed, 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 Dante>AES3 is selected, then the Dante source will be automatically
selected if it has a valid audio stream on it. If the Dante stream should fail, then AES3 is automatically selected
instead. Note that 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 AES3. Similarly, if Dante>Analog is
selected, then Dante will be selected unless the stream fails, in which case AES3 will be used.
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 encoder
“A”
will change the value in 0.2dB steps from -40dB to +20dB. This page will
also allow users to change the polarity of the selected input from normal to reverse, using encoder
“B”.
Using
encoder
“C”
will mute the selected channel.
Delay
The delay page which controls the amount of delay associated with the input channel selected and is adjustable
from 0 to 998ms. The delay parameter is adjustable in fine steps at low values; the adjustment becomes
progressively coarser as the value increases.
High Pass Filter
System high pass filtering is provided for the input signal. Filter type is selectable from 1st order, Butterworth,
Bessel, Linkwitz-Riley and Hardman. Filter slopes of up to 4th order or 24dB / octave are provided. Not all filter
types are available in all slopes. For example 18dB / octave Linkwitz-Riley filters do not exist.
The Hardman type filter is always described by its order as the filter becomes progressively steeper rather than
following a linear slope so a dB/octave description is not accurate.
Parametric Equalization
There are nine stages of equalization available for each input channel, three shelving filters and six
parametric filters.
FIR Linear Phase Equalization
The Input High-Shelf Equalizers use Finite Impulse Response (FIR) filtering to produce Linear Phase equalization;
that is all frequencies are delayed by the same amount, perfectly preserving the transient response. This can also
be important in applications where different amounts of EQ are applied to different parts of a speaker cluster,
Summary of Contents for UX48 series
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