RDL®

STM-LDA3

Studio Quality Microphone Preamplifier with phantom - 3 line outputs

SKU: STM-LDA3
  • Studio-Quality Microphone Preamplification
  • Three Distributed Line-Level Outputs
  • Low-Noise and Low-Distortion Performance
  • Selectable Filtered Phantom Voltage
  • Adjustable Gain up to 60 dB
  • RDL’s® Exclusive Dual-LED VU Metering
  • Versatility of STICK-ON® Compactness
Recommended Power Supply ( Not Included )
PS-24AS (USA)PS-24AX (International)
TAA Compliant

Description

The STM-LDA3 is designed for use in quality commercial sound, broadcast and recording applications. The 1.2 kΩ balanced input accepts a wide variety of microphone input levels without loading professional low-impedance microphones. A multi-turn gain trimmer allows precise output level adjustment. The output signal is available on three separate balanced line level outputs. Each output may be connected balanced or unbalanced.

RDL's exclusive low-noise discrete preamplifier circuitry produces studio-quality low-noise performance in an economical preamplifier. Dynamic or condenser microphones may be used with the STM-LDA3. Standard 24V phantom is supplied to the input when the supply voltage is connected to the PHM terminal. Optimum operating level is set using RDL's unique dual-LED VU meter, located adjacent to the terminal block. A green LED illuminates at 15 dB below a +4 dBu output. The intensity of the green LED progresses from minimum to full intensity at +4 dBu. The adjacent red LED illuminates when the operating level exceeds +4. This makes the STM-LDA3 easy to set up without any external test equipment, and operating levels may be monitored at the module.

Specifications

Input:1.2 kΩ balanced
Outputs (3):+4 dBu, 150 Ω balanced
Gain:40 to 60 dB (25 turn adjustable)
Frequency Response:30 Hz to 20 kHz (± 0.2 dB)
THD+N:< 0.1%
IMD:< 0.1%
Noise:< -70 dB (below +4 dBu @ 60 dB gain - wideband)
< -80 dB (below +4 dBu @ 50 dB gain - wideband)
Equivalent Input Noise:< -130 dB (gain + residual noise below +4 dBu)
Headroom:> 20 dB (above +4 dBu)
CMRR:> 60 dB (100 Hz to 5 kHz)
Ambient Operating Environment:0° C to 55° C
Power Requirement:GROUND-REFERENCED, 24 Vdc @ 40 mA
Package Type:Cardboard Box
WEEE weight:0.145 lbs.
Shipping Weight:0.2 lbs.
Tariff code:8543.70.9860
Package Dimensions:2 x 2 x 4 in.

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Dimensions

STM-LDA3

Downloads

DocumentsFormat
Datasheet PDF
CAD FilesUnitsFormat
Engineering Functional Block American DXF
Panel Diagram - Front American DXF
Panel Diagram - End American DXF
Panel Diagram - End Metric DXF
Panel Diagram - Front Metric DXF
High Res ImagesFormat
stm-lda3.zip TIF
Declaration of Conformity
Download

Diagrams

Where To Buy

Direct Dealer Program

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  • Must be an A/V contractor, sound contractor or system integrator
  • Must possess a current resale certificate for your state
Click here to submit a new direct dealer account inquiry

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