Nexo Alpha System - Manual (Page 28)

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P 28
USER MANUAL
VERSION :1.01
DATE : 06/10/10
5.4. A LPHA M3
Frequency Response with AlphaTD Controller (dB) Impedance (Ohms)
Black : MF, Grey : HF
Directivity Index (dB) and Factor Nominal Coverage @ –6 dB (Degrees)
Horizontal Off-Axis Frequency Response @ 10, 20 & 30° Vertical Off-Axis Frequency Response @ 10, 20 & 30°
Frequency Response Curves : Anechoic Far Field above 200 Hz, Half-space Anechoic below 200 Hz.
Impedance : Voltage to Current Ratio, Free Field measurement
Off-Axis Frequency Response : 1/3 octave smoothed frequency response, normalised to On-Axis response.
Directivity Curve, Coverage Angle and Polar Diagram from computer processing on off-axis response curves.
20 100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
On Axis Response Alpha M3 With AlphaTD Controller (dB)
20 100 1k 10k 20k
2
10
50
Impedance Alpha M3 (Ohm)
100 1k 10k 20k
1
10
100
0.0
5.0000
10.000
15.000
20.000
Directivity Index (dB) & Q Alpha M3
100 1k 10k 20k
20
100
200
Coverage Angle Alpha M3 (Degree)
100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
Horizontal Off-Axis Response Alpha M3 (dB)
100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
Vertical Off-Axis Response Alpha M3 (dB)