Radio Design Labs STM-2 Low Noise Mic Preamp

Product Description

The RADIO DESIGN LABS STM-2 is a low noise microphone preamplifier designed for professional audio signal processing applications. It conditions low-level microphone signals, boosting them to line level for downstream processing, mixing, or recording equipment. The STM-2 does not include an internal power supply, so it requires an external power source for operation. This unit is intended for installation and use by audio systems integrators, broadcast engineers, and AV professionals working in fixed-installation and live-sound environments.

The STM-2 is suited for commercial and professional audio installations where clean, low-noise mic-level signal amplification is required. Typical applications include broadcast facilities, houses of worship, conference rooms, and stage installations where external power supply infrastructure is already in place. It processes microphone-level signals and delivers amplified output for integration into larger audio signal chains.

Key Features

• Low noise microphone preamplifier circuit for clean signal amplification
• Requires external power supply — no internal power supply included
• Designed for fixed-installation and professional audio signal processing
• Sold as a single unit

Compatibility

Designed as an OEM-style microphone preamplifier for professional audio signal processing systems requiring an external power supply configuration.

Installation Notes

Installation should be performed by a qualified audio systems integrator or AV technician. Ensure the appropriate external power supply is sourced and connected before powering the unit. De-energize all connected equipment before making signal or power connections. Follow applicable electrical codes and the manufacturer installation manual for proper wiring and rack-mounting procedures.