AtlasIED TSD-ML11 Microphone Preamp

The AtlasIED TSD-ML11 is a high-headroom, low-noise microphone preamp engineered for professional speech and conferencing environments. Ideal for conference rooms, courtrooms, council chambers, boardrooms, and public forums, this versatile preamp delivers exceptional voice clarity and reliability while supporting mute and push-to-talk microphone control.

Designed for superior audio performance, the TSD-ML11 includes switchable 24V phantom power to support condenser microphones and a variable preamp stage for fine-tuned gain adjustment. Four preset EQ notch filters target common feedback frequencies, enhancing speech intelligibility and tonal balance. A 12dB/octave high-pass filter at 125Hz reduces unwanted low-frequency noise, bass rumble, and environmental interference — keeping focus on the vocal range.

The built-in limiter/compressor protects your audio system by preventing clipping and distortion, while the Mic Mute/Mic On contact closure control enables flexible push-to-talk or priority mute functionality for multi-microphone setups.

With signal and peak LEDs, balanced Mic/Line I/O via Phoenix-style connectors, and high-gain output for long cable runs, the TSD-ML11 ensures professional-grade performance and quiet operation in any installation.

The unit requires a TSD power supply (sold separately) and consumes 100mA of current. When powering multiple TSD units, use the AtlasIED TSD Power Calculator to select the proper power supply.

AtlasIED TSD-ML11 Key Features:

• High-Quality Microphone Preamp with adjustable gain

• Switchable 24V Phantom Power for condenser mics

• Four (4) Preset Frequency Notch Filters for tone shaping and feedback control

• 125Hz / 12dB High-Pass Filter for rumble and feedback reduction

• Variable Output Limiter/Compressor for distortion-free audio

• Mic Mute / Mic On Control via contact closure (push-to-talk or mute)

• Signal & Peak Indicators for precise monitoring

• Balanced Mic/Line I/O with removable Phoenix-style connectors

• High-Gain Output for long balanced line transmission

• Separate Ground Connections for noise isolation

• Security Covers for all front-panel controls

• Energy-Efficient Design

• Power Supply Sold Separately

AtlasIED TSD-ML11 Specifications