Nexo GEO S8 - Manual (Page 31)

TECHNICAL SPECIFICATIONS P.31
GEO S830 curves
30 100 1k 10k 20k
−30
−20
−10
0
10
ON AXIS RESPONSE (dB)
On Axis response in dB. From dark to light: set up ‘wide range’, ‘CD12 stacked’ and
‘CD12 flown’.
30 100 1k 10k 20k
8
16
32
64
IMPEDANCE (Ohms)
Impedance in Ohms.
100 1k 10k 20k
−20
−10
0
10
OFF AXIS RESPONSE Flange 80° (dB)
Off axis response in dB in the non-coupling plane flange 80°.
Dark to light: 0°, 10°, 20°, 30° and 40° off axis.
100 1k 10k 20k
0.1%
1%
10%
THD + N (%)
Total harmonic distortion + noise in percentage. Level = 110dB @ 1m.
100 1k 10k 20k
−20
−10
0
10
OFF AXIS RESPONSE Flange 120° (dB)
Off axis response in dB in the non-coupling plane flange 120°.
From dark to light: 0°, 15°, 30°, 45° and 60° off axis.
30
210
60
240
90 270
120
300
150
330
180
0
2500Hz
30
210
60
240
90 270
120
300
150
330
180
0
30
210
60
240
90 270
120
300
150
330
180
0
30
210
60
240
90 270
120
300
150
330
180
0
5000 Hz
30
210
60
240
90 270
120
300
150
330
180
0
30
210
60
240
90 270
120
300
150
330
180
0
100 1k 10k 20k
10˚
100˚
200˚
COVERAGE ANGLE (Degree)
Total coverage @-6dB in the coupling plane in degrees.
From dark to light: 1, 2 and 4 boxes.
10000 Hz
30
210
60
240
90 270
120
300
150
330
180
0
30
210
60
240
90 270
120
300
150
330
180
0
30
210
60
240
90 270
120
300
150
330
180
0
Flange 80° (dark) and flange 120° (light) polar
plot in the non-coupling plane. 3dB/division.
100 1k 10k
20˚
100˚
200˚
COVERAGE ANGLE (Degree)
Total coverage @-6dB in the non-coupling plane in degrees: flange
80° (dark) and flange 120 (light).
100 1k 10k 20k
0
10
20
Q & DI
1
10
100
Directivity Index in dB (Left hand side scale) and directivity factor
(Right hand side scale) for flange 120° (dark) and flange 80° (light).
All measurements made with dedicated NX program.
Measurements conditions: far field, half space below 400Hz; anechoic above 400Hz.
Directivity Index and factor: computer synthesized from coverage. Coverage 1/3rd octave
band synthesized from FFT measurements.