Larson Davis 831 - Page 471

A-34 Frequency Response Model 831 Manual
FIGURE A-13 Model 831 with 377B02 Microphone: 3090and 150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 30° Mic 90° Mic 150°