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

ITEM #: STM-2X MFG #: STM-2X

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List Price:

$310.29

Our Price:

$232.71

Availability: Typically Ships in 3-10 Business Days
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    STM-2X - Overview

    The RDL 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.

    • Features:

      • 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
       
    • Specifications:

      • 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 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: > 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
       
    • GTIN:

      0813721011497
       

    STM-2X - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov