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Switched Mic Preamp - 35 to 65 dB Gain - Radio Design Labs STM-2X

SKU: RDLSTM-2X
Manufacturer: RDL
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MSRP: $310.29
Price: $232.71
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Switched Mic Preamp - 35 to 65 dB Gain
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The STM-2X is the ideal choice in many installations where a microphone preamplifier is required, and is the ideal choice where either a toggle-type switch or push-to-talk switch is to be provided for microphone control, particularly if condenser microphones are used.

Specifications

Input:
500 Ω balanced; 5 kΩ unbalanced
Phantom:
24 Vdc; IEC 61938: 2013, Filtered
Outputs (2):
Line Level: +4 dBu 150Ω balanced
Mic Level: -45 dBu 150Ω balanced
Headroom:
> 20 dB
Gain:
Line: Adjustable 35 to 65 dB; Mic Level Output: Adjustable -15 to 15 dB
Frequency Response:
50 Hz to 30 kHz (± 1.5 dB)
THD+N:
< 0.05% (50 dB gain)
Residual Noise ON:
< -70 dB (below to +4 dBu; 150 Ω source @ 50 dB gain)
OFF Attenuation:
> 100 dB (1 kHz)
> 80 dB (50 Hz to 20 kHz)
Switch Control Input:
Connect to ground to activate signal; 0.5 mA maximum current required
Switching Time:
< 5 ms (soft-switching transition on or off)
CMRR:
>50 dB (50 Hz to 20 kHz)
Phantom Power Input:
24 Vdc @ 10 mA maximum
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 25 mA
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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