MIX 2:1 tm User Guide Radial Engineering Ltd. 1588 Kebet Way, Port Coquitlam BC V3C 5M5 Tel: 604-942-1001 • Fax: 604-942-1010 • Email: info@radialeng.
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MIX 2:1 Two Channel Audio Combiner & Mixer Overview.......................................................................................... 1 Features...........................................................................................
OVERVIEW The MIX 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. XLR and ¼” TRS inputs are provided for easy connectivity, with a single XLR output to feed your destination device.
FEATURES 1. On: Individually activates each input. 2. Input Level: Sets the amount of attenuation applied to each input. 3. 180°: Used to reverse the polarity on Input-2 to correct cancellation when summing out-of-phase signals. 4. Level Bypass: Set & forget switch bypasses the level controls on inputs 1 and 2. When this switch is engaged, both inputs are summed together equally. 5. Output: Mono XLR output is balanced to feed a powered speaker, mixing console, or a recording interface. 6.
MAKING CONNECTIONS Before making connections, ensure that your sound system is turned off and all volume controls are turned down. This prevents any plug-in transients from damaging speakers or other sensitive components. The MIX 2:1 is passive, and does not require any power to operate. The MIX 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.
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. Next, engage the recessed LEVEL CONTROL BYPASS switch on the right hand side of the MIX 2:1 – this will disable the input level controls for each channel to ensure that the stereo balance is maintained.
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.
BLOCK DIAGRAM* INPUT A Female XLR and 1/4" Jack LEVEL OUTPUT DEFEAT A ON/OFF A LEVEL PASSIVE M IX G ND LIFT GND LEVEL B ON/OFF PO LARITY B LEVEL DEFEAT G ND LIFT INPUT B Female XLR and 1/4" Jack GND * Subject to change without notice. Radial Engineering Ltd.
SPECIFICATIONS* Audio Circuit Type: ����������������������������������������������������������������������������������������������������������������������������������������� Passive Mixer Frequency Response: ��������������������������������������������������������������������������������������������������������������������������������������20Hz-20kHz Noise Floor: �������������������������������������������������������������������������������������������������������������������������������������������������
RADIAL ENGINEERING 3 YEAR TRANSFERABLE WARRANTY RADIAL ENGINEERING LTD. (“Radial”) warrants this product to be free from defects in material and workmanship and will remedy any such defects free of charge according to the terms of this warranty. Radial will repair or replace (at its option) any defective component(s) of this product (excluding finish and wear and tear on components under normal use) for a period of three (3) years from the original date of purchase.
