The STM-LDA3 from RDL is a high quality, miniature wall and surface mount microphone preamplifier with distributed output, designed for use in quality commercial sound, broadcast and recording applications. The 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. Both dynamic and condenser microphones may be used with the unit and 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 15dB below a +4dBu output with the intensity of the green LED progressing from minimum to full intensity at +4dBu. The adjacent red LED illuminates when the operating level exceeds +4dBu and this allows the STM-LDA3 to be easily set up without any external test equipment, while allowing operating levels to be monitored at the module.
The output signal is available on three separate balanced line level outputs. Each output may be connected balanced or unbalanced.
- Compact studio-quality microphone preamplifier with three distributed line-level outputs
- Low-noise and low-distortion performance
- Selectable filtered phantom voltage
- Adjustable gain up to 60dB
- RDL's dual-LED VU metering
- Versatility of the "Stick-On" series compactness