AtlasIED TSD-ML22VCA Input Output Mic Line Preamp and Voltage Controlled Amplifier

Optimize voice clarity and level control across multiple zones with the AtlasIED TSD-ML22VCA mic/line preamp and 2x2 VCA. Designed for installers and AV integrators, this unit combines two high-quality, low-noise microphone preamps with a true VCA attenuator to deliver smooth, reliable volume control before amplification — a more efficient solution than transformer-based attenuators in high-power music and paging systems.

Each channel offers switchable phantom power for condenser microphones and a 12dB/octave high-pass filter at 125Hz to cut bass rumble and reduce low-frequency feedback, keeping the voice spectrum focused and intelligible. With a full 20Hz–20kHz frequency response and dual-input/dual-output routing, the TSD-ML22VCA is ideal for sports bars, restaurants, hotels, security monitoring rooms and surveillance audio feeds where clear announcements and consistent levels matter.

Specify the AtlasIED TSD-ML22VCA to simplify microphone level control and improve overall system performance — contact sales or add to your next pro audio or security integration project today.

• Precise, low-noise level control for two independent zones or stereo sources, improving intelligibility and system efficiency
• Integrated mic preamps with switchable phantom power and 12dB/octave @125Hz high-pass filters to reduce rumble and feedback for clearer voice reproduction
• True VCA design provides smoother, more reliable attenuation than transformer-based solutions for high-power music and paging systems
• Compact, rack-friendly footprint and robust build simplify installation in bars, restaurants, hotels, or security/monitoring rooms
• NDAA-compliant, wide 20Hz–20kHz frequency response ensures accurate audio for pro audio, surveillance, and public-address applications