Larson Davis 831 - Frequency Response

A-32 Frequency Response Model 831 Manual
Frequency Response
For frequency response information with PRM2103 preamplifiers and EPS2116 environmental shells, see the
respective manuals for these products.
Plane Parallel to Display Screen
FIGURE A-11 Model 831 with 377B02 Microphone: 060 and 120 degrees
LD Model: 831, Serial #: 0099, Normalized to 251.19Hz @ 0° xy
Tested 02/03/06 15:13:24 by Alex T.
Note: 377B02/100916 PRM831/0118
Reference Mic: B&K Model: 4189, Serial Number: 2440346, Tested: 02/03/06 10:50:56
2.0
dB
0.0
dB
-2.0
dB
-4.0
dB
-6.0
dB
-8.0
dB
-10.0
dB
-12.0
dB
-14.0
dB
200 Hz 1K Hz 20K Hz
Mic 0° Mic 60° Mic 120°