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
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RDL STM-3 Overview

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

RDL STM-3 Specs

Number of ChannelsSingle
InputsTerminal block
Output2 x Balanced or unbalanced outputs on terminal block
Phantom Power24V from power supply
Multi FunctionNo
Gain Range45dB to 75dB
Maximum Output Level>18dB with 24VDC supply
Frequency Response50Hz to 25kHz, +/-1dB
Noise<-70dB below +4dBu, 600 Ω source @ 60dB gain
DimensionsNot specified by manufacturer
WeightNot specified by manufacturer
SpecialtiesRequires ground-referenced, 24 to 33Vdc @ 25mA power source
Packaging Info
Package Weight0.2 lb
Box Dimensions (LxWxH)4.1 x 2.1 x 2"
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