Adjustable-Gain Microphone Preamp, 35 to 65 dB – RDL STM-2

RDL STM-2 — Adjustable-Gain Microphone Preamp, 35 to 65 dB

The RDL STM-2 is an adjustable-gain microphone preamplifier that provides a 35 to 65 dB range of gain control to condition low-level microphone signals for downstream equipment. It solves the common challenge of matching varying microphone outputs to mixers, processors, and recording devices by allowing precise gain adjustment at the source. By setting the correct gain range, technicians can minimize noise, avoid clipping, and preserve signal integrity across diverse installations. The STM-2’s range makes it suitable for low-output dynamic and condenser microphones where additional clean gain is required. Its control flexibility benefits system integrators who need predictable, repeatable mic-level adjustments during commissioning. The unit is appropriate for field installations, OEM integrations, and maintenance/repair operations where dependable mic signal conditioning is required.

Key Features:

• Adjustable gain range: 35 to 65 dB for flexible mic-level control
• Designed to condition low-level microphone signals for downstream audio equipment

Specifications:

• Manufacturer: RDL
• MPN: STM-2

Applications / Usage Context: Field installers and low-voltage technicians will find the STM-2 useful for balancing microphone levels on-site. OEM customers can integrate the unit where compact, adjustable mic gain is required. MRO operations can use the preamp for service, repairs, and system upgrades that require consistent mic-level gain control.

Tri-Tek Electronics is an authorized distributor of this product with full manufacturer warranty support and nationwide availability.