MA 200 1D creates in combination with chosen Creation Panel separate diffuser modules, that diffuses in one dimension. By aid of known number theory the MA modules are placed at different depth and make up a diffuser in a diffuser. The advantage by this construction, that can be compared to a 2-way loudspeaker with a dividing filter at 900 Hz, is that narrow and deep compartments are avoided and that the periodical effects are minimised ( different number series can be mixed)
The separate modules are delivered with or without 16mm partition walls.
The MA 200 1D is delivered with or without bass absorption, which make them unique on the world market. The bass absorption is carried out effectively with the Helmholtz principle. Since the volume behind chosen MA module varies a frequency broad bass absorption with a high absorption coefficient (>0,7) is obtained. The lowest frequency for absorption is determined by the chosen maximum depth of the MA module. The lowest grade of diffusion is determined by the total width in combination with the maximal depth.
Advantages with MA 200 1D
Developed in co-operation with Musicians
Narrow and deep compartments are avoided which brings low absorption in the area that are to be diffused.
Since each module is free standing it is possible to place the partition walls between an optional number of MA modules
Large areas can be diffused (for example concert halls)
Variable acoustics can be obtained by AC 200
Possibilities to adjust the bass absorption to the lower frequency of the diffusers
Different Creation panels are available
Cost efficient
Alternatives to MA 200 1D
Creation Panel
AD 30,AD40, TP200 and SP 200
AC Module
AC 300
Specifications MA 200 1D:
Diffuser range: 100-16000 Hz (at maximum depth 1800
mm)
Width/module =224 mm
length/module max 2400 mm
Standard depth = 370 mm
Other depths = 300-1800 mm
Weight/module = 12-30 Kg/m
Standard foil = white, birch or oak
As option most wood foils and faneers are available
Absorption coefficient for MA 200 1D Helmholtz with 0.37 m depth and 5m width.
Hz Absorption coefficient
50...... 0.4
63...... 0.7
80...... 0.74
100.... 0.80
125.... 0.78
160.... 0.80
200.... 0.82
250.... 0.70
400.... 0.33
500.... 0.34
1000.. 0.20
2000.. 0.24
4000.. 0.22
The diffuser co-efficient depends on the chosen number series