MCM Electronics

50dB Gain Microphone Preamplifier By Radio Design Labs (STM-1) MCM Part #555-18812

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MSRP: $135.40
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50 dB Gain Microphone Preamplifier

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.

Specifications Top

    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

Specifications
Input: 500 ohm balanced; 5 Kohm unbalanced
Phantom: 24VDC; IEC 1938: 1996-12, Filtered
Outputs (2): +4 dBu 150 ohm balanced; -10dBv unbalanced
Frequency Response: 50 Hz to 20 kHz (+/- 1.5 dB)
Gain: 50 dB nominal
THD+N: < 0.05%
CMRR: > 60 dB (50 Hz to 30 kHz)
Residual Noise: < -70 dB (below +4 dBu; 150 ohm source @ 50 dB gain)
Headroom: > 20 dB (24 VDC supply);
> 14 dB (12 VDC supply)
Phantom Power Input: 24 VDC @ 10 mA maximum
Power Requirement: GROUND-REFERENCED, 24 VDC @ 25 mA
Ambient Operating Environment: 0° C to 55° C


Part Numbers
MCM Part #:555-18812
Radio Design Labs Part #:STM-1
Package Specifications & Dimensions
Weight:0.1 lbs.
Hazardous:No
RoHS Comp:Yes
Warranty:1095 days
Need to Return?
Length:4 in.
Width:2 in.
Height:2 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

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