Ms 1a, Data sheet-2, Microphone stage – Rane MS 1a Mic Stage Current version is here. User Manual
Page 2: Features and specifications

Data Sheet-2
MS 1a
MICROPHONE STAGE
Parameter
Specification
Limit
Units
Conditions/Comments
Input Impedance
10k
1%
ohms
Balanced 5k + 5k
Gain Range
21.5 to 66
typ.
dB
Phantom Power
+48
4%
volts
10 mA max.
..........Impedance
6.81k
1%
ohms
Each leg
..........Load Regulation
0.1
typ.
%
0 to 14 mA
..........RMS CM Noise
.003
typ.
%
% of Vout (10 to 10k Hz)
Max. Input Level
+4.5/-34
min.
dBu
Gain 21.5/60, balanced output
..........Max. Input Level
-1.5/-40
min.
dBu
Gain 21.5/60, unbalanced output
Equivalent Input Noise
-129
1
dBu
20 kHz BW, Rs=150 ohms, Gain = 60 dB
Signal to Noise Ratio
96
1
dB
20 kHz BW, Rs=150 ohms, Gain = 21.5 dB, re 4 dBu
Dynamic Range
95/118
typ.
dB
Gain 60/21.5
CMRR
80
typ.
dB
Rs=150 ohms, 1 kHz
Frequency Response
..........Gain 60 dB
55 to 100k
typ.
Hz
+0, -3dB
..........Gain 21.5 dB
40 to 100k
typ.
Hz
+0, -3db
THD+Noise (gain 60 dB)
.007 (Output=+20 dBu)
typ.
%
20 to 20k Hz, 80 kHz BW, Rl=10k ohms
THD+Noise (gain 21.5 dB)
.001 (Output=+20 dBu)
typ.
%
20 to 20k Hz, 80 kHz BW, Rl=10k ohms
Line Driver
Active Cross-coupled
Gain 5.2/6 dB typ. unbalanced/balanced
Max. Output Level
+20/+26
min.
dBu
Unbalanced/balanced, 2k ohm load
Output Impedance
50
1%
ohms
Each Leg
Signal Indicator
2/8
typ.
dBu
Unbalanced/balanced output, Green LED
Overload Indicator
14/20
typ.
dBu
Unbalanced/balanced output, Amber LED
Output Cable Length
300
typ.
meters
Belden 8451 or equivalent
Unit: Agency Listing
..........120 VAC model
Class 2 Equipment
National Electrical Code
UL & CSA
Exempt Class 2 equipment
..........230 VAC model
CE-EMC
EMC directive 89/336/EEC
CE-Safety
Exempt per Art. 1, LVD 73/23/EEC
Power Supply: Agency Listing
Class 2 Equipment
..........120 VAC model
UL
File no. E88261
CSA
File no. LR58948
..........230 VAC model
CE-EMC
EMC directive 89/336/EEC
CE-Safety
LV directive 73/23/EEC
..........100 VAC model
Built to JIS
Japan only
Power Supply Input
18 VAC w/center tap
10%
Vrms
Rane RS 1 supplied
Max Current Consumption
220
mA
Unit Size
1.65" H x 5.1" W x 4.25" D
(4.2 cm x 13 cm x 10.8 cm)
..........Weight
1 lb
(0.45 kg)
Shipping Size
3.6" H x 11.75" W x 7.2" D
(9.5 cm x 30 cm x 18 cm)
..........Weight
4 lb
(1.8 kg)
Features and Specifications