RDL STM-1 Microphone Preamplifier

RDL STM-1 - Stick-On Series Single Channel Microphone Preamplifier

RDL STM-1 - Stick-On Series Single Channel Microphone Preamplifier

B&H # RDSTM1 MFR # STM-1
RDL STM-1 Microphone Preamplifier

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  • 1Description

The STM-1 is a low-cost, high-quality miniature wall and surface mount microphone preamplifier from RDL, designed for use in commercial sound and broadcast applications. The compact size makes it ideal where a larger or heavier preamp cannot be used.

The high-performance circuit provides a fixed 50dB gain to bring any microphone-level signal up to the line-level range of nearly any line input. The STM-1 supply input is single ended and operates from 24 to 33VDC. Operation from 12VDC is possible with a 6dB reduction in headroom. For intercom applications, the input will operate directly from a speaker.

Wall-mount high or low impedance input microphone preamplifier
Fixed 50dB gain for consistency
Balanced or unbalanced output
Phantom power capability
RF-filtered inputs and outputs
STICK-ON convenience
UPC: 813721011046
In the Box
RDL STM-1 - Stick-On Series Single Channel Microphone Preamplifier
  • Three (3) Year Warranty
  • Table of Contents
    • 1Description
    Number of Channels Single
    Inputs Terminal block
    Output Terminal block, balanced or unbalanced
    Phantom Power Input terminals provided
    Multi Function No
    Gain Range 50dB nominal
    Maximum Output Level >20dB with 24VDC supply
    Frequency Response 50Hz to 30kHz, +/-1dB
    Noise <-75dB below +4dBu, 600 Ω source
    Dimensions (WxDxH) Not specified by manufacturer
    Weight Not specified by manufacturer
    Specialties Requires ground-referenced, 24 to 33Vdc @ 25mA power source
    Packaging Info
    Package Weight 0.2 lb
    Box Dimensions (LxWxH) 4.0 x 2.0 x 2.0"
    RDL STM-1 Microphone Preamplifier - 50 dB Gain

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