Data Sheet

100 1000 10000
Frequency (Hz)
70
80
90
100
110
120
dB SPL
20
Response -20dBu/1m
HDL20-A
100 1000 10000
Frequency (Hz)
1
10
100
Total Q
0
2
4
6
8
10
12
14
16
18
20
Directivity index Di, dB
Directivity Index and Q
HDL20-A
100 1000 10000
Frequency (Hz)
-30
-25
-20
-15
-10
-5
0
5
Attenuation in dB
Vertical -10 degrees
Vertical -20 degrees
Vertical -30 degrees
Vertical -40 degrees
Vertical -50 degrees
Vertical -60 degrees
Normalized Vertical off-axis Response.
HDL20-A
100 1000 10000
Frequency (Hz)
0
30
60
90
120
150
180
210
240
270
300
330
360
Coverage Angle (Deg.)
Horizontal Beamwidth (1/3 Octave)
Vertical Beamwidth (1/3 Octave)
Beamwidth vs. Frequency
HDL20-A
100 1000 10000
Frequency (Hz)
-30
-25
-20
-15
-10
-5
0
5
Attenuation in dB
Horizontal ±10 degrees
Horizontal ±20 degrees
Horizontal ±30 degrees
Horizontal ±40 degrees
Horizontal ±50 degrees
Horizontal ±60 degrees
Normalized Horizontal off-axis Response. Right side
HDL20-A
100 1000 10000
Frequency (Hz)
-30
-25
-20
-15
-10
-5
0
5
Attenuation in dB
Vertical -10 degrees
Vertical -20 degrees
Vertical -30 degrees
Vertical -40 degrees
Vertical -50 degrees
Vertical -60 degrees
Normalized Vertical off-axis Response.
HDL20-A
D-LINE HDL 20-A