SoundAdvisor Model 831C
A-2
Typical Preamplifier Attenuation
: 0.08 dB
Connector
: 5-Pin Male, Switchcraft TA5MLAUX
Mating Connector
: 5-Pin Female, Switchcraft
TA5FLAUX
Extension Cables
: You can use a preamplifier
extension cable between the meter and the
preamplifier/microphone with no degradation for
lengths up to 200 feet (61 m).
Microphone polarization voltage
: 0 V (no
polarization is provided, so use pre-polarized
microphones)
SLM Performance
Table A.2 SLM Performance (Nominal Values)
PRM831 with
377B02
Microphone (dB)
Direct Input
(dBµV)
PRM831 with
377A15 (dB)
Gain
0 dB
+20 dB
0 dB
+20 dB
0 dB
+20 dB
Measurement
Range
1
1. Microphone and electrical self-noise included
A
24-140
20-120
n/a
n/a
21-140
16-120
C
26-140
25-120
n/a
n/a
21-140
16-120
Z
36-140
33-120
n/a
n/a
27-140
25-120
Typical Noise
Floor
1
A
16.3
15.6
8.3
-0.1
13.8
12.5
C
16.8
16.3
6.9
-1.4
14.3
13.8
Z
23.4
23.2
12.3
3.0
23.0
22.8
Linearity
Range
2
2. Electrical measurement, frequency 1kHz
A
≥117
≥102
≥120
≥108
≥120
≥106
23-140
18-120
20-140
12-120
20-140
14-120
C
≥114
≥96
≥121
≥110
≥120
≥106
25-140
24-120
19-140
10-120
20-140
14-120
Z
≥104
≥87
≥117
≥104
≥114
≥96
36-140
35-120
23-140
15-120
26-140
24-120
Peak Range
2
A
65-143
44-123
65-143
46-123
64-143
45-123
C
66-143
45-123
63-143
46-123
65-143
46-123
Z
68-143
59-123
64-143
46-123
66-143
48-123
SPL Max Level
2
≥140
≥120
≥140
≥120
≥140
≥120
Peak Max Level
2
≥143
≥123
≥143
≥123
≥143
≥123
