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Nexo B1-18

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PAGE 24/37
CURVES
ALPHA SERIES USER MANUAL V1.0
DATE: 14/01/00 18:27
CURVES
Alpha S2
30 100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
On Axis Response Alpha S2 With SubTD Controller (dB)
Figure 1: Frequency Response with Sub TDcontroller (dB)
10 100 1k 10k
2
10
50
Impedance Alpha S2 (Ohm)
Figure 2: Impedance (Ohms)
Alpha B1-18
30 100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
On Axis Response Alpha B1-18 With AlphaETD Controller (dB)
Figure 3: Frequency Response with AlphaE TDcontroller (dB)
10 100 1k 10k
2
10
50
Impedance Alpha B1-18 (Ohm)
Figure 4: Impedance (Ohms)
Alpha B1-15
30 100 1k 10k 20k
-30.00
-20.00
-10.00
0.0
10.000
On Axis Response Alpha B1-15 With AlphaTD Controller (Overlap/X-over)
Figure 5: Frequency Response with Alpha TDcontroller (dB)
Black: Overlap Mode, Grey: X-Over mode
10 100 1k 10k
2
10
50
Impedance Alpha B1-15 (Ohm)
Figure 6: Impedance (Ohms)
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.

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