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䉴 AC28/26 Compact 2-way Loudspeaker System with 2 - 8" LF
20 100 1000 10000 20000
Frequency (Hz)
10
100
360
-6 dB Beamwidth (degrees)
Horizontal
Vertical
20 100 1000 10000 20000
Frequency (Hz)
0
10
20
1
10
100
Directivity Index (DI), dB
Directivity Factor (Q)
Beamwidth
Directivity Index, Q
20 100 1000 10000 20000
Frequency (Hz)
-30
-20
-10
0
10
Attenuation (dB)
0 deg
10 deg
20 deg
30 deg
40 deg
50 deg
60 deg
70 deg
80 deg
Horizontal Off-Axis Frequency Response
20 100 1000 10000 20000
Frequency (Hz)
-30
-20
-10
0
10
Attenuation (dB)
0 deg
10 deg
20 deg
30 deg
40 deg
Vertical Down Off-Axis Frequency Response
20 100 1000 10000 20000
Frequency (Hz)
-30
-20
-10
0
10
Attenuation (dB)
0 deg
10 deg
20 deg
30 deg
40 deg
20 100 1000 10000 20000
Frequency (Hz)
65
75
85
95
105
SPL (dB)
2␲ half space
4␲ free field
Frequency Response, 1W/1m
Measurements obtained in full passive crossover mode with no signal
processing. Graphs are from unaltered measured data.
20 100 1000 10000 2000
0
Frequency (Hz)
1
10
100
Impedance (Ohms)
Impedance
Vertical Up Off-Axis Frequency Response
Vertical Orientation
75622_JBL_AC28_26 5/2/08 3:05 PM Page 2