V1.22
Owners Manual SP20-Linex™
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Important note on proper vertical coverage
Be cautious not to configure the vertical coverage to tight, unless this is absolutely necessary
(this might be the case, due to e.g. a highly reflective back wall in a closed area). This is
especially important in long throw situations. The above rule should prevent (large) amounts of
listeners from being in the area around the -6dB vertical coverage angles. At “main interface”
page of SPArC™ this area can be recognized as the area between the pointers of the first two
(top) cabinets and last two (bottom) cabinets in the graph of the “Main interface” page. The –
6dB angles are represented by top cabinet and bottom cabinet pointers in SPArC™ (“Main
interface”).
The –6dB top coverage area is largest for long to very long throw situations. This area can be
reduced by setting a few top cabinets to a zero degree angle setting and/or addition of cabinets
to the top end of the array. For more related notes on array shape configuration see the array
configuration section of this manual.
The automatic calculation for the angle settings does not take fully into account the above
arguments because such coverage issues are too venue specific to decide upon via simple
algorithms. A sound technician should, therefore review the automatic array settings.
Ground stacking
If wanted (generally only in case of a theatre like venue) the SP line arrays can be ground
stacked. In principal the same rules apply as for flown arrays. Ground stacking in SPArC™ is not
yet a standard option but can be simulated manually. The lowest cabinet will be attached to the
fly-frame and should be positioned at the required height. The ‘lower cabinet angle‘ should be
set to –3 (angle between cabinet and fly-frame is 0 degrees).
Due to omni-directional character of the lower octaves note that when ground-stacking
spill of these lower frequencies occurs at the sides and, if applicable, on stage of the
ground stack!
Printing a page
Any page of SPArC™ can be printed via the excel menu: file>print.
