Amate Audio Nitid S12W, Руководство пользователя

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NITID S12W Dec 2022
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Amate Audio
To increase the directivity at low frequencies we must transform the omnidirectional
performance into a cardioid performance. This can only be achieved by various
sources, arranged in a certain position, to which we apply a specific phase, filtering
and delay. That is, we need to reproduce two signals with the same frequency and
similar amplitude which will have a difference in
phase of approximately 180º at a certain point of the
sound field.
If the phases and delays are well calculated, the
result is a system, in which we cancel the energy of
the back and not the one of the front.
This can only be achieved with cabinets that
incorporate independent delay units on their DSP, as
the X218WFD.
Fig. 2. Cardioid pattern
1.3.4. Configuration with with 3 units
The S12W can generate an uncompromised cardioid behaviour, which means that
there is no need for special cabinets, enabling the use of the system’s full efficiency
with just “one finger”.
In its minimum and standard configuration a cardioid setup consists of a vertical
column of three subwoofer cabinets.
Only one subwoofer is needed to compensate for the energy of the other two
radiating to the front. Then, the cabinet facing to the back (to the stage) should be
located in the centre of the column.
Fig. 3.
Cardioid configuration for S12W subwoofer (3 units)