Radio Design Labs - RDL STM-2 Adjustable Gain Microphone Preamplifier

Power Supply
2 In Stock Price: $194.04
Instant Savings: -$52.96
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Adjustable Gain Microphone Preamplifier - 35 to 65 dB Gain

The STM-2 is a quality low-noise microphone preamplifier designed for use in commercial sound, broadcast, and recording. The STM-2 is very flexible, with gain adjustment from 35 to 65 dB, two balanced or unbalanced outputs, and available phantom supply input. Its ultra-low distortion and lownoise performance make it the best choice, even when larger preamps could be used. The STM 2 supply input is single ended and operates from 24 Vdc. Operation from 12 Vdc is possible with a 6 dB reduction in headroom. Each output drives high or low impedance loads.
  • Low-Noise Mic Preamp
  • Adjustable Output Level
  • High or Low Impedance Mic Inputs
  • Mic Input to 2 Line Outputs
  • Two Balanced or Unbalanced Outputs
  • Phantom Capability
  • RF-Filtered Inputs
  • Input: 500 Ω balanced; 5 kΩ unbalanced
  • Phantom: 24Vdc; IEC 1938: 1996-12, Filtered
  • Outputs (2): +4 dBu 150 Ω balanced; -10dBv unbalanced
  • Frequency Response: 50 Hz to 20 kHz (+/- 1.5 dB)
  • Gain: Adjustable 35 to 65 dB
  • THD+N: < 0.05% (50 dB Gain)
  • CMRR: > 60 dB (50 Hz to 30 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)
  • Power Requirement: GROUND-REFERENCED, 24 Vdc @ 25 mA
  • Ambient Operating Environment: 0 C to 55 C
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Brand Radio Design Labs - RDL
Model STM-2
Part Number STM-2
UPC 813721011053
Product Category Microphone Preamps
Unit of Measure EACH
Shipping Weight 0.20 lbs.
Manufacturer Link http://www.rdlnet.com/product.php?page=64
Page Views 10466
Radio Design Labs - RDL STM-2 Adjustable Gain Microphone Preamplifier
$ 141.08 New Available online STM-2
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