RDL STM-1 Single Channel Microphone Preamplifier Stick-On Design
Availability:
In StockAvailable for shipment within one business day, or pickup from our Jamaica, NY warehouse during regular business hours.
Description
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 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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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 balanced 5 k unbalanced |
| Phantom: | 24Vdc IEC 1938: 1996-12, Filtered |
| Outputs (2): | +4 dBu 150 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 source @ 50 dB gain) |
| Headroom: | > 20 dB (24 Vdc supply) > 14 dB (12 Vdc supply) |
| Phantom Power Input: | 24 to 33 Vdc @ 10 mA maximum |
| Power Requirement: | GROUND-REFERENCED, 24 to 33 Vdc @ 25 mA |
| Ambient Operating Environment: | 0 degrees C to 55 degrees C |
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 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.
-
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 balanced 5 k unbalanced |
| Phantom: | 24Vdc IEC 1938: 1996-12, Filtered |
| Outputs (2): | +4 dBu 150 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 source @ 50 dB gain) |
| Headroom: | > 20 dB (24 Vdc supply) > 14 dB (12 Vdc supply) |
| Phantom Power Input: | 24 to 33 Vdc @ 10 mA maximum |
| Power Requirement: | GROUND-REFERENCED, 24 to 33 Vdc @ 25 mA |
| Ambient Operating Environment: | 0 degrees C to 55 degrees C |
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