Nexo Alpha M3

PAGE 31/37
CURVES
ALPHA SERIES USER MANUAL V1.0
DATE: 14/01/00 18:27
Alpha EM
30 100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
On Axis Response Alpha EM With AlphaETD Controller (dB)
• Figure 19: Frequency Response with AlphaE TDcontroller
(dB)
20 100 1k 10k 20k
2
10
50
Impedance Alpha EM (Ohm)
• Figure 20: Impedance (Ohms)
100 1k 10k 20k
1
10
100
0.0
5.0000
10.000
15.000
20.000
Directivity Index (dB) & Q Alpha EM
• Figure 21: Directivity Index (dB) and Factor
100 1k 10k 20k
20
100
200
Coverage Angle Alpha EM (Degree)
• Figure 22: Nominal Coverage @–6 dB (Degrees)
100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
Horizontal Off-Axis Response Alpha EM (dB)
• Figure 23: Horizontal Off-Axis
Frequency Response @ 10, 20 & 30°
100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
Vertical Off-Axis Response Alpha EM (dB)
• Figure 24: Vertical Off-Axis
Frequency Response @ 10, 20 & 30°
Alpha EF
30 100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
On Axis Response Alpha EF With AlphaETD Controller (dB)
• Figure 25: Frequency Response with AlphaE TDcontroller
(dB)
20 100 1k 10k 20k
2
10
50
Impedance Alpha EF (Ohm)
• Figure 26: Impedance (Ohms). Black: LF, Grey: MF+HF
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.