STM-1 | MICROPHONE PREAMPLIFIER - 50 DB GAIN

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  • List Price: $199.95 / EA
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MICROPHONE PREAMPLIFIER - 50 DB GAIN
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STM-1
MICROPHONE PREAMPLIFIER - 50 DB GAIN

  • UM : EA

The STM-1 is a low-cost quality microphone preamplifier designed for use in commercial sound and broadcast applications. The compact size makes it ideal where a larger or heavier preamp cannot be used. The high-performance circuit provides a fixed 50 dB gain to bring any mic-level signal up to the line-level range of nearly any line input. The STM-1 supply input is single ended and operates from 24 Vdc. Operation from 12 Vdc is possible with a 6 dB reduction in headroom. For intercom applications, the input will operate directly from a speaker.

Features:

  • High or Low Impedance Input Mic Preamp
  • Fixed 50 dB Gain for Consistency
  • Balanced or Unbalanced Output
  • Phantom Capability
  • RF-Filtered Inputs and Outputs
  • Excellent Performance
  • STICK-ON Convenience
Input 500 Ω balanced
5 kΩunbalanced
Phantom 24 Vdc
IEC 61938: 2013, Filtered
Outputs (2) +4 dBu 150 Ω balanced
-10 dBv unbalanced
Frequency Response 50 Hz to 30 kHz (± 1.5 dB)
Gain 50 dB nominal
THD+N < 0.05%
CMRR >50 dB (50 Hz to 20 kHz)
Residual Noise < -70 dB (below +4 dBu
150 Ω source @ 50 dB gain)
Headroom > 20 dB (24 Vdc supply)
> 14 dB (12 Vdc supply)
Phantom Power Input 24 Vdc @ 10 mA maximum
Ambient Operating Environment 0° C to 55° C
Power Requirement GROUND-REFERENCED, 24 Vdc @ 25 mA
Package Type Cardboard Box
WEEE weight 0.145 lbs.
Shipping Weight 0.195 lbs.
Tariff code 8543.70.9860
Package Dimensions 2 x 2 x 4 in.

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