L-Acoustics L2 - Page 22

Electro-acoustical description
L2D
L2D generates an enclosure directivity pattern of 60° and a waveguide directivity pattern of (upper part) 70° / 110°
symmetric or 90° asymmetric (-6 dB) depending on the fins settings and (lower part) progressive from 110° to 140°.
Frequency (Hz)
Angle (°)
0
180
160
140
120
100
80
60
40
20
-20
-40
-60
-80
-100
-120
-140
-160
-180
100 1000 10000
Dispersion angle diagram of one L2D with 110° fins settings and a cardioid
pattern, using lines of equal sound pressure at -3 dB, -6 dB, -12 dB.
Frequency (Hz)
Angle (°)
0
180
160
140
120
100
80
60
40
20
-20
-40
-60
-80
-100
-120
-140
-160
-180
100 1000 10000
Dispersion angle diagram of one L2D at 140° with a cardioid
pattern, using lines of equal sound pressure at -3 dB, -6 dB, -12 dB.
22 L2 owner's manual (EN) version 5.0