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Preamplifiers
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Larson Davis offers a
number of microphone preamplifiers for a variety of
applications. Ruggedly built, they can drive lines up to
500 feet with frequency response from as low as 0.3 Hz
to as high as 200 kHz.
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Model Number
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Diameter
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1/4 Inch |
1/2 Inch |
1/2 Inch |
1/2 Inch |
1/2 Inch |
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Connector
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10-32 |
BNC |
LEMO 7-pin |
LEMO 7-pin |
LEMO 7-pin |
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Polarization Voltage Support
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No |
No |
Yes |
Yes |
Yes |
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Supply Voltage
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20 V to 32 V |
20 V to 32 V |
±10 V to ±18 V or 20 V to 150 V |
±7 V to ±18 V or 14 V to 35 V |
±10 V to ±18 V or 20 V to 150 V |
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Max Output Voltage (Peak)
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8 V |
8 V |
14 V (4 less than supply voltage) |
15 V (3 less than supply voltage) |
14 V (4 less than supply voltage) |
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Max Output Current (Peak) |
19 mA (1 less than supply current) |
19 mA (1 less than supply current) |
20 mA |
25 mA |
20 mA |
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Frequency Range
(18 pF) |
2 Hz to 126,000 Hz
±0.5 dB |
4 Hz to 126,000 Hz ±0.5 dB |
3 Hz to 126,000 Hz ±0.5 dB |
3 Hz to 126,000 Hz ±0.5 dB |
3 Hz to 126,000 Hz ±0.5 dB |
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Attenuation, typical |
0.1 dB |
0.08 dB |
0.19 dB |
0.25 dB |
0.19 dB |
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Noise A-weighted, typical |
1.9 µV |
5 µV |
2.1 µV |
2.1 µV |
2.1 µV |
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Noise 20 Hz to 20 kHz, typical |
3.4 µV |
8 µV |
3.7 µV |
3.7 µV |
3.7 µV |
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Input Impendance |
20 GΩ||0.15 pF |
20 GΩ||0.15 pF |
10 GΩ||0.36 pF |
10 GΩ||0.5 pF |
10 GΩ||0.36 pF |
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Output Slew Rate, typical |
2 V/µS |
2 V/µS |
8 V/µS |
10 V/µS |
8 V/µS |
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Power Supply current, typical |
2mA to 20 mA |
2mA to 20 mA |
1.7 mA |
7 mA |
1.7 mA |
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TEDS |
Yes |
Yes |
No |
No |
Yes |
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Comments |
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Built-in Heater for Outdoor Use |
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Use with Instrument Model(s) |
Instruments with ICP® |
Instruments with ICP® |
824, 2221, 3000+, |
824, 2221, 3000+, |
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(c) 2007 PCB Group, Inc. In the interest of constant product
improvement, specifications are subject to change without notice. PCB,
IMI with associated logo, ICP, Modally Tuned, Swiveler, Spindler,
TORKDISC, Spark, Blaze, and SoundTrack LxT are registered trademarks of
PCB Group, Inc. SensorLine is a service mark of PCB Group, Inc. All
other trademarks are properties of their respective owners. |
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