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14 MANCHESTER Series Quick Start Guide 15
Array Size Compensation (ASC)Overlays
Three ASC overlays are available, and it is recommended that ALL enclosures in the array have ASCselected.
The 6 dB low-frequency shelving characteristic osets LF/MF arraycoupling.
Note: Single MV212 / MV212 XV do not normally require ASCoverlay.
ASC OVERLAYDESCRIPTION OVERLAY
ASC 2 to 4: 2 to 4elements
ASC 5 to 8: 5 to 8elements
ASC +8: more than 8elements
DISTANCE EQCOMPENSATION OVERLAY
All speakers are aected by air loss over distance, this set of
overlays is in increments of 3 m and ensures a balanced high
frequency response over distance. Peaking or Bell lters are
used to keep headroom in the high frequency band rather
than high shelf lters which unnecessarily use up headroom
for frequency which will not travel over far distances.
Rules of AirEQ:
DO NOT INSERT MORE THAN 1 FILTER AT THE SAMETIME.
FOR INTERMEDIATE DISTANCES, USE THE CLOSEST
OVERLAYAVAILABLE
AirEQ overlays are availableat:
9 m, 12 m, 15 m, 18 m, 21 m, 24 m, 27 m, 50 m, and + 50m
Here we have some examples of how the useful frequency
and gain changes overdistance:
AirEQ 12 m
AirEQ 15 m
AirEQ 18 m
AirEQ 21 m
Two elements per amplifier DSP module block
AirEQ9 m – For elements within an array aimed at 9
mdistance
AirEQ24 m – For elements within an array aimed at 24
mdistance
AirEQ50 m – For elements within an array aimed at
50mdistance