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STM-1 Microphone Preamplifier
Pro Net: $129.26
Price: $73.99
You Save: $55.27 (43 %)
Item Number: STM-1
Manufacturer: Radio Design Labs
Manufacturer Part No: STM-1
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High or Low Impedance Input Mic Preamp
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Fixed 50 dB Gain for Consistency
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Balanced or Unbalanced Output
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Phantom Capability
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RFFiltered Inputs and Outputs
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Excellent Performance
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STICKON® Convenience
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The STM1 is a lowcost 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 highperformance circuit provides a fixed 50 dB gain to bring any miclevel signal up to the linelevel range of nearly any line input. The STM1 supply input is single ended and operates from 24 to 33 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.
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Typical Performance:
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Input:
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500 balanced; 5 k unbalanced
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Phantom:
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24Vdc; IEC 1938: 199612, Filtered
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Outputs (2):
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+4 dBu 150 balanced; 10dBv unbalanced
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Frequency Response:
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50 Hz to 20 kHz (+/ 1.5 dB)
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Gain:
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50 dB nominal
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THD+N:
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< 0.05%
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CMRR:
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> 60 dB (50 Hz to 30 kHz)
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Residual Noise:
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< 70 dB (below +4 dBu; 150 source @ 50 dB gain)
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Headroom:
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> 20 dB (24 Vdc supply);
> 14 dB (12 Vdc supply)
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Phantom Power Input:
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24 to 33 Vdc @ 10 mA maximum
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Power Requirement:
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GROUNDREFERENCED, 24 to 33 Vdc @ 25 mA
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Have a Question?
Expert advice is only an email or phone call away. Email advice@globalav.com or call 1-800-595-4436 to speak with one of our knowledgeable system integrators regarding this product.
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