2:1™, a robust passive summing mixer that is a useful addition to any audio professional’s toolbox. While the mIX 2:1 has been designed to be as easy to use as possible, please take a few minutes to review this short manual and familiarize yourself with the various features and uses of the MIX 2:1.
2:1 is a simple summing mixer that makes merging two audio signals easy. Whether you need to sum mic or line level signals, or the outputs of two separate devices, the mIX 2:1 allows you to do so without noise or coloration of the sound.
Ground Lifts: Lifts the audio ground path on the XLR and ¼” inputs to reduce hum and buzz from ground loops. No Slip Pad: Provides electrical & mechanical isolation and keeps the unit from sliding around. Radial Engineering Ltd. MIX 2:1™ User Guide...
2:1 has both ¼” tRS and an XLR connectors to accept balanced mic or line-level signals. For best results, only use one of these connector types at a time on each channel. the XLR output of the mIX 2:1 will also be mic or line level depending on your input sources and the amount of attenuation applied using the input level controls.
SUMMING A STEREO SOURCE TO MONO With the mIX 2:1, you can quickly take a stereo feed from a mixing console or a recording interface and sum it to mono to feed a single speaker input on a PA system. Start by pushing in the ON buttons for both inputs so they are both active.
SUMMING TWO SEPARATE SOURCES the mIX 2:1 is also handy for summing audio signals from two different devices, such as a guitar mic and a passive DI, or top and bottom snare drum mics. When summing two separate sources, start with the input level controls fully clockwise (max) and use the ON switches to audition each channel individually.
USING THE 180° SWITCH the mIX 2:1 includes a 180° switch which reverses the polarity of the audio on INPUt-2 - this is sometimes referred to as a ‘phase reverse’. When two audio signals have similar content but are reversed in polarity, certain frequencies can be cancelled or amplified when the signals are summed together, creating a filtered or unnatural sounding result.
G ND LIFT G N D LEVEL DEFEAT B ON/OFF PO LARITY B LEVEL G ND LIFT INPUT B G N D Female XLR and 1/4" Jack * Subject to change without notice. Radial Engineering Ltd. MIX 2:1™ User Guide...
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