Radial MIX 2:1 2-Channel Summing Mixer

The Radial MIX 2:1 is an essential tool for anyone needing to sum two audio channels down to one with ease and precision. This passive summing mixer is perfect for a myriad of applications, whether you're looking to combine the stereo outputs of a console, a recording interface, or a portable playback device into a single mono output. Its utility extends to mixing any two signals together while maintaining the capability to balance their relative input levels with its individually bypassable level controls.

Constructed with a durable 14-gauge steel chassis, the Radial MIX 2:1 ensures reliability and longevity in various environments. Its passive design means no power is required, making it ideal for both studio and remote applications. With balanced 1/4" TRS and XLR inputs, this mixer is versatile and straightforward, providing high fidelity audio with a frequency response from 20Hz to 20kHz and negligible distortion levels, ensuring your sound is reproduced with ultimate clarity.

Key Features

• Passive Design Requires No Power: Pure passive summing circuitry operates without external power supply for simple, reliable operation in any environment
• Dual Input Connectivity: Both 1/4" TRS and XLR connectors on each input accommodate mic and line-level sources with balanced connections
• Individual Level Controls: Separate trim knobs on each input enable precise balance adjustment when mixing two independent sources
• Level Control Bypass: Dedicated bypass switch sums both inputs at unity gain for quick stereo-to-mono conversion without attenuation
• Independent Mute Switches: Separate on/off buttons for each input allow auditioning individual signals before summing
• Polarity Reverse Function: 180-degree phase flip switch on input 2 corrects out-of-phase signals when summing dual-mic setups
• Ground Lift Switches: Individual ground lifts on each input eliminate hum and buzz caused by ground loops
• Military-Grade Construction: Robust 14-gauge steel chassis with military-spec PCB and full ground plane reduces RF interference
• Professional XLR Output: Balanced mono XLR output connects to powered speakers, mixing consoles, or recording interfaces

Technical Specifications

• Audio circuit type: Passive mixer
• Frequency response: 20Hz to 20kHz
• Dynamic range: >133dB
• Total harmonic distortion: greater than 0.005 percent @ 0dBu
• Intermodulation distortion: greater than 0.002 percent @ 0dBu
• Phase deviation: 0 deg @ 20Hz, 0 deg @ 1kHz +2 deg @10kHz
• Input impedance: 8 k OHM
• Output impedance: 1 k OHM
• Common mode rejection ratio: >80dB
• Noise: -113dBu
• Maximum input: greater than +20dBu
• Input connectors: 1/4", XLR
• Output connectors: XLR
• Construction: 14-gauge steel chassis and outer shell
• Size (L x W x D): 5" x 3.25" x 1.85" (12.7 x 8.3 x 4.7cm)
• Weight: 1.48lb (0.67kg)
• Shipping size (L x W x D): 6.25" x 4.12" x 3" (15.9 x 10.5 x 7.6cm)
• Shipping weight: 1.77lb (0.8kg)
• Power: Passive, no power required
• Conditions: For use in dry locations only, between 5°C and 40°C
• Warranty: Radial 3-year, transferable

Package Contents

• Summing Mixer: Radial MIX 2:1 main unit
• Documentation: User guide and specifications