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Switched Microphone Preamplifier - 35 to 65 dB gain

$169.20

•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

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.


Typical Performance:

Input:
500 Ω balanced; 5 kΩ unbalanced

Phantom:
24Vdc; IEC 1938: 1996‑12, Filtered

Outputs (2):


Line Level:
+4 dBu 150Ω balanced

Mic Level:
‑45 dBu 150Ω balanced

Headroom:
> 20 dB

Gain:


Line Level Output:
Adjustable 35 to 65 dB

Mic Level Output:
Adjustable ‑15 to 15 dB

Frequency Response:
50 Hz to 20 kHz (+/‑1 dB)

THD+N:
< 0.05% (50 d 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:
> 60 dB (50 Hz or 20 kHz)

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



Data/Installation

Add to Cart:

  • Model: STM-2X
  • Shipping Weight: 0.5lbs
  • 10 Units in Stock
  • Manufactured by: RDL -Radio Design Labs


This product was added to our catalog on Friday 04 June, 2010.

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