Larson Davis 831, User Manual

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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