Three Cardioid Microphones - Radial Engineering Decoder User Manual

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THREE CARDIOID MICROPHONES

The Decoder is equipped with a third microphone input. This allows the
user to substitute the figure-8 mic with a pair of cardioid microphones to
simulate the same effect. Bringing the mic's as close together as possible
will minimize phase issues.
1. Setup the MID microphone by aiming it directly at the source. Connect
this mic to input-1 on the Decoder.
2. Setup your left SIDE microphone by placing it directly below and 90°
off axis from the MID mic. Connect this mic to input-2a on the Decoder.
3. Setup your right SIDE microphone by aiming it directly opposite of your
side mic. Initially the goal is to replicate a figure-8 polar pattern, so
try and get the capsules as close together as possible. Side-address
microphones work great!
4. Engage the 180° phase reverse on input-2b (button IN).
5. Make sure the LINK button is set to the OUT position so that it does not
receive the signal from input-2a.
6. Apply phantom power on channels 1, 2a and 2b if required. Note that
the phantom ON switch for channels 2a and 2b are combined and
adjacent to the input 2a gain switch. The 48V phantom power switches
are recessed to prevent accidental switching.
7. Start by bringing up the GAIN control on input-1 to an audible level on
your system.
8. Slowly start bringing up the GAIN controls of inputs-2a and 2b.
9. Start experimenting with different placements of your SIDE mics.
Spacing mics far apart or even running stereo room mics through the
Decoder can lead to some interesting results!
Radial Engineering Ltd.
180° Phase
Switch ON
6
True to the Music
Decoder Mid/Side Matrix