Keep Relative Delays While Delaying A Group; Name A Band - BSS Audio FDS366T OMNIDRIVE User Manual

15.0 Quick Reference - How to ...
Use delays for
driver alignment
Keep relative
delays while
delaying a group

Name a band

The best way to do this is to have a good idea of the physical positions of the
voice coils of the drivers in the cabinet. If you do not know this, an estimate
can be made, but it may take a while longer.
For example consider a 3-way box; with a 12" direct radiator, a 2" horn with a
compression driver, and a 1" bullet.
The voice-coil furthest away from the front of the cabinet will be the 2" horn,
so the other two drivers will need delaying to compensate for the time it takes
the audio energy to reach the outer flare of the horn. This distance could be
300mm. Subtract from this the distance of the voice coil of the low driver (lets
say 120mm) and set that delay to the result (180mm). Do the same for the 1"
bullet, which will usually have a shorter distance from voice coil to front, and
hence need a longer delay.
Alternatively use the Alignment Assistant to aid this process with
measurements, see the Alignment Assistant section in the Utilities chapter of
this manual for more information.
This is achieved by using the 'Delay Link' mode. Any bands can be linked so
that a delay applied acts to all the linked bands. This means that relative shifts
between cabinets can be made without upsetting driver alignments.
Select the output band to be linked, then use the navipad ^ key to cycle
through the screens until the Delay Link screen is shown. Turning the rotary
encoder will show all possible choices, which are determined by the bands
sourced from the same input. The graphic display will also show the bands
being linked.
The FDS-366T has a preset list of names you can select from which may suit
your system layout. For example, Output 1 can be renamed to Subs.
To do this:
•
Select Output 1 by pressing the appropriate output select button or by
pushing the rotary encoder to select Output 1.
•
Use the navipad v key to select the Name screen (if not already shown).
•
Turn the rotary encoder to select a relevant name for the output. The
name is automatically retained at the top of the display when a new
screen is selected.
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FDS-366T