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RDL STM-2X Switched Microphone Preamplifier - 35 to 65 dB Gain

RDL STM-2X Switched Microphone Preamplifier - 35 to 65 dB Gain

SoundPro Item: 77478 | Part Number: STM-2X

$239.70
$319.59 $239.70
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MSRP: $319.59 | MAP: $239.70

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  • Quiet Switching of Condenser Microphone
  • Remote Microphone Soft-Switching
  • Switch a Mic-Level Source to a Mic or Line Level Output
  • Remote Toggle Switch or Push-to-Talk Button
  • Adjustable Preset Gain on Microphone Source
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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.

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Specifications

Input:
500 Ω balanced; 5 kΩ unbalanced
Phantom:
24 Vdc; IEC 61938: 2013, Filtered
Outputs (2):
Line Level: +4 dBu 150Ω balancedMic Level: -45 dBu 150Ω balanced
Headroom:
> 20 dB
Gain:
Line: Adjustable 35 to 65 dB; Mic Level Output: Adjustable -15 to 15 dB
Dimensions:
Height: 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)
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
Package Type:
Cardboard Box
WEEE weight:
0.145 lbs.
Shipping Weight:
0.195 lbs.
Tariff code:
8543.70.9860
Package Dimensions:
2 x 2 x 4 in.

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