Channel Delays - Datasat RS20i Installation And Operating Manual

Vu meters on the Home screen show the input channel name while showing the Vu level of the sum of
the outputs for that crossover channel.
4.5.3.3 High Pass and Low Pass Shelf
The High Pass and Low Pass Shelves are for active crossover systems. The High Pass is the portion of
the sound spectrum that is going to find its way to the top-end compression driver. The Low Pass is the
portion of the sound spectrum that is going to find its way to the mid-woofer.
Since there are 16 output channels available, you have the option to use them any way you like.
Suppose you actually have six channels of incoming sound, then you have 10 other D/A converted
outputs that can be used as crossovers. All you need to do is identify which channels will be used as
crossovers. Setting up your system in this way, lets you do away with passive crossovers. Although you
would need more amplifiers, it does give you much tighter control of your system.
You can also decide how steep the High Pass or Low Pass cut-off is. The conventional values are 6, 12,
18, and 24 dB. As the numbers go up, the cut-off is steeper.
Note: Set up the crossovers before you run the Dirac software. The Dirac software
will fine-tune the characteristics of the crossover point. If a driver has issues
with time alignment, or encounters an aberration of some sort that can be
measured, it will do its best to correct for it. It will also adjust all the amplitudes
to their appropriate values to get a smooth response within that range.
4.5.4

Channel Delays

The Channel Delays screen is used to set delays for internal (input) channels and output channels. The
channel delays settings are saved with the current Output Preset.
Setup > ChDelays
The upper portion is used to set the delay for the Input Channels. The right portion has a button to select
between channels 1 to 8 or channels 9 to 16. The lower portion sets delays for Output Channels. The
total delay for a group of output channels cannot exceed 353ms.
The controls available on this screen are described in this table.
RS20i Installation & Operating Guide
RS20i Installation and Operating Guide
Figure 48. Channel Delays
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Document # 9301H52900 Ver. 1.02