RDL STM-3 Microphone Preamplifier

RDL STM-3 - Stick-On Series Single Channel, High-Gain Microphone Preamplifier with Dual Outputs

RDL STM-3 - Stick-On Series Single Channel, High-Gain Microphone Preamplifier with Dual Outputs

B&H # RDSTM3 MFR # STM-3
RDL STM-3 Microphone Preamplifier

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  • 1Description

The STM-3 is a high quality, miniature wall and surface mount low-noise microphone preamplifier from RDL, designed for use in surveillance, commercial sound, broadcast and recording where higher than normal gain is required.

The unit is very flexible, with gain adjustment from 45 to 75dB, two balanced or unbalanced outputs, and available phantom supply input. Its low-distortion and low-noise performance make it the best choice, even when larger preamps could be used.

The single-ended supply input range is from 24 to 32VDC. Operation from 12VDC is possible with a 6dB reduction in headroom. Each output drives high or low impedance loads.

Wall-mount low-noise, high gain microphone preamplifier
Adjustable output level
High or low impedance microphone input
Microphone input to two balanced or unbalanced line outputs
Phantom power capability
RF-filtered inputs
UPC: 813721011060
In the Box
RDL STM-3 - Stick-On Series Single Channel, High-Gain Microphone Preamplifier with Dual Outputs
  • Three (3) Year Warranty
  • Table of Contents
    • 1Description
    Number of Channels Single
    Inputs Terminal block
    Output 2 x Balanced or unbalanced outputs on terminal block
    Phantom Power 24V from power supply
    Multi Function No
    Gain Range 45dB to 75dB
    Maximum Output Level >18dB with 24VDC supply
    Frequency Response 50Hz to 25kHz, +/-1dB
    Noise <-70dB below +4dBu, 600 Ω source @ 60dB gain
    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) 4.1 x 2.1 x 2.0"
    RDL STM-3 High Gain Microphone Preamplifier - 45 to 75 dB gain

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