Radial MIX2.1
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- This item is covered for 3 years
What you need to know
What you need to know
The essentials of the MIX 2:1 stereo summing mixer
- Simple, effective summing: combines two channels into one mono output, ideal for quickly converting a stereo source to mono.
- 100% passive solution: no power supply required, for reliable use in the studio or live.
- Signal control and protection: channel activation, input level adjustment and control bypass to suit every setup.
- Built-in correction tools: ground lift switch and phase reverse switch to resolve common issues (ground loops, polarity reversals).
Manufacturer Information
Radial
https://www.radialeng.com
info@radialeng.com
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Safety manager:
Algam SAS
Email: contact@algam.net
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A compact summing mixer designed for essential audio routing needs
The MIX 2:1 is designed to meet a very specific need: combining two audio signals into a single output, without complicating the chain. Its "stereo summing mixer" category makes it particularly practical for combining left/right outputs from a mixing console, recording interface or portable player, then obtaining a clean, usable mono signal. Its compact format makes it easy to integrate on a studio desk, in a mobile rack or in a live setup.Who is it for and what can it be used for?
The MIX 2:1 is intended for musicians, sound engineers, technicians and content creators who want to convert a stereo source to mono or mix two signals quickly, while retaining control over the balance between the inputs. It is a relevant tool for situations where a signal needs to be simplified before distribution (mono sound reinforcement, recording, streaming), or when you want to combine two sources into a single XLR output without using a full mixing console.Technical specifications
| Frequency response - start | 20 Hz | THD | 0,005% @ 1 kHz |
| Frequency response - end | 20 kHz | Inputs | 2 x XLR, 2 x jack |
| Category | stereo summing | Analog outputs | XLR |
| Number of channels | 2 | Power supply | Passive |
| Digital conversion | No | Weight | 0.7 kg |
| Max input level (dBu) | 20 | Dimensions (mm) | 127 x 84 x 45 |
| Settings | channel activation, level control bypass, ground lift switch, phase inverter, input level | ||
| Outputs | XLR | Max. input level (dBu) | 20 |
| Controls | channel activation, level control bypass, ground lift switch, phase reverse, input level | Frequency response | 20 Hz - 20 kHz |
Questions frequently asked
Does the Radial MIX2.1 allow converting a stereo output to mono?
Both channels can be summed to a single mono XLR output. The relative input levels remain adjustable to balance the left and right channels.
What connections are available on this summing device?
The connectivity includes 2 XLR inputs, 2 jack inputs, and one analog XLR output.
Is it possible to correct a phase issue between two signals?
A phase reverse switch is integrated to correct mid-bass loss or hollow sound when combining two sources. A ground lift switch also helps reduce noise caused by ground loops. Channel activation allows isolating an input if needed.
What signal level can the MIX 2:1 accept?
The maximum input level reaches 20 dBu, allowing connection of professional-level signals. The level controls can also be bypassed for a direct signal path.
Does the Radial summing device operate without power?
Its passive operation requires no external power supply. With dimensions of 127 x 84 x 45 mm and weighing 0.7 kg, the unit easily fits into a mobile or studio setup.



