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RDL Microphone Preamplifier - 50 dB Gain - STM-1 |
| Mfr # STM-1 |
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( RDL )
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| Price:
$ 87.48
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- 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
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. | 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: | 50 dB nominal | | THD+N: | < 0.05% | | 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) | | Phantom Power Input: | 24 to 33 Vdc @ 10 mA maximum | | Power Requirement: | GROUND-REFERENCED, 24 to 33 Vdc @ 25 mA | | Ambient Operating Environment: | 0° C to 55° C |
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Last Updated: Wednesday, 23 May 2012 04:21
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