Radial Engineering MIX 2:1 2-Channel Audio Combiner & Mixer – Passive Line-Level Signal Summing Interface for Stereo Mixing and Audio Routing Applications

The Radial Engineering MIX 2:1 2-Channel Audio Combiner & Mixer is a professional passive line-level summing interface designed for combining or routing stereo signals in studio, live sound, broadcast, and installation environments.

The MIX 2:1 allows two channels of balanced line-level audio to be safely summed into a single mono output, making it ideal for stereo-to-mono conversion, zone feeding, or combining multiple audio sources into one feed. It maintains signal integrity while preventing phase issues and overload that can occur when signals are improperly combined.

With TRS and XLR inputs and a balanced XLR output, the unit integrates easily into professional audio systems. It is commonly used to merge stereo outputs from mixers, playback devices, keyboards, or interfaces into a single mono feed for PA systems, recording devices, or broadcast chains.

As a fully passive device, the MIX 2:1 requires no external power and provides a completely transparent signal path with no added noise or distortion. Its design ensures proper impedance matching and safe signal summing, preserving clarity and preventing damage to connected equipment.

Key Features:

• Passive 2-channel line-level audio combiner and mixer
• Converts stereo or dual inputs into a summed mono output
• TRS and XLR inputs with balanced XLR output
• Safe signal summing with proper impedance handling
• Eliminates phase and overload issues in passive mixing
• Transparent audio path with no power required
• Ideal for live sound, studio, broadcast, and installation use
• Rugged construction for professional reliability