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  6. Adjustable Gain Mic Preamp - 35 to 65 dB Gain - Radio Design Labs STM-2
 
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Adjustable Gain Mic Preamp - 35 to 65 dB Gain - Radio Design Labs STM-2

SKU: RDLSTM-2
Manufacturer: RDL
Not Rated Yet
MSRP: $273.96
Price: $205.47
Save $68.49 off MSRP
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Adjustable Gain Mic Preamp - 35 to 65 dB Gain
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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.

Specifications

Input:
500 Ω balanced; 5 kΩ unbalanced
Phantom:
24 Vdc; IEC 61938: 2013, Filtered
Outputs (2):
+4 dBu 150 Ω balanced; -10 dBv unbalanced
Frequency Response:
50 Hz to 30 kHz (± 1.5 dB)
Gain:
Adjustable 35 to 65 dB
THD+N:
< 0.05% (50 dB Gain)
CMRR:
>50 dB (50 Hz to 20 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
Dimensions:
Height: 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.195 lbs.
WEEE weight:
0.145 lbs.
Tariff code:
8543.70.9960
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