Target Delta Selection - Martin Audio MLA MINI Advanced User's Manual

MLA MINI
DISPLAY 2.2

TARGET DELTA SELECTION

The target Delta selection is located in the bottom right corner and is where the SPL variation
from audience start to finish is entered:
This unassuming little box is one of the most powerful features of Martin Audio multicellular
systems, whist all other systems on the market are trying desperately to achieve a 3dB drop in
level for every doubling of distance away from their arrays, with MLA Mini you can simply specify
the precise loudness contour you desire across the venue. If you want the back row to be as loud
as the front then you simply type 0 in both the start and stop delta positions and the system
will give you exactly that. It can even make it louder at the back than the front if that is what
you want.
The start and finish deltas are referenced to the yellow triangle which nominally is placed in the
middle of the audience region when you enter the coverage area in the venue slice. You have
the opportunity to move it and if you didn't do so in the venue slice you can click on the 'Move
Ref' button and move your cursor around the venue planes. The triangle will follow your cursor
sticking to the planes until you are happy with its position and a further mouse click with cement
it in its new position. Alternatively you can enter either an x or h figure to specify the horizontal
position or height of the reference point and it will jump to the closest position on the venue
shell that corresponds to the coordinates you have entered.
It is tempting to automatically position the reference position wherever front of house is
positioned but this is not in the least bit necessary. The reference is used to adjust the contour
so its position should be dictated by how you want the volume to change from the start to the
finish of the audience region. Take a look at the following diagrams:
MLA Mini Display 2.2 V1.0
119