Larson Davis 831 - Performance Specifications

A-4 Model 831 Specifications Model 831 Manual
Performance Specifications
For performance specifications of the Model 831 with the PRM2103 preamplifier, see the Larson
Davis PRM2103 Outdoor Microphone Preamplifier Manual.
PRM831 with 377B02
Microphone
Direct Input
Gain 0 dB 20 dB 0 dB 20 dB
Measurement
Range
1
A 28 - 140 dB 24.9 - 120 dB N/A N/A
C 29 - 140 dB 27 - 120 dB N/A N/A
Z 35 - 140 dB 34 - 120 dB N/A N/A
Noise Floor
1
A 18 dB 17 dB 11.3 dBV - 2.1 dBV
C 18 dB 17 dB 12.5 dBV - 2.4 dBV
Z 23 dB 21 dB 18.9 dBV - 3.1 dBV
Linearity Range
2
A
115 dB
24 to 140 dB
101 dB
19 - 120 dB
 116 dBV
24 - 140 dBV
112dBV
9 - 121 dBV
C
 114 dB
25 - 140 dB
 96 dB
23 - 120 dB
 118 dBV
22 - 140 dBV
113dBV
8 - 121 dBV
Z
106 dB
32 - 140 dB
 86 dB
32 - 120 dB
113 dBV
27 - 140 dBV
 107dBV
14 - 121 dBV
Peak Range
2
A 66 - 143 dB 46 - 123dB 76 - 143 dBV 56 - 124 dBV
C 66 - 143 dB 46 - 123 73 - 143 dBV 53 - 124 dBV
Z 77 - 143 dB 59 - 123 dB 78 - 143 dBV 58 - 124 dBV
SPL Max Level
2
140 dB 120 dB 140 dBV 121 dBV
Peak Max Level
2
143 dB 123 dB 143 dBV 124 dBV
Max Level
Normal Octave
Band Analysis
(OBA) Range
2
140 dB 120 dB 140 dBV 120 dBV
Max Level
Low OBA Range
2
107 dB 87 dB 107 dBV 87 dBV
1
Microphone and electrical self-noise included
2
Electrical Measurements
Table A-4 Model 831 Performance Specifications