User Manual

True to the Music

Radial Engineering Ltd.

MC3 Monitor Controller

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Before making any connections, always ensure levels are turned down or equipment is

turned off. This will help avoid turn-on transients that could harm sensitive components like

tweeters. It is also a good practice to test signal ow at a low volume before turning things up.

There is no power switch on the MC3. As soon as you plug in the power supply, it will turn on.

The SOURCE INPUT and MONITORS-A and B output connection jacks are balanced ¼”

TRS (Tip Ring Sleeve) connectors that follow the AES convention with tip positive (+), ring

negative (-), and sleeve ground. When used in unbalanced mode, the tip is positive and the

sleeve shares the negative and ground. This convention is maintained throughout.

Ground

Tip (+)

Ground

Tip (+)

Ring (-)

Balanced TRS ¼” Phone Unbalanced TS ¼” Phone

Connect the stereo output of your recording system to the ¼” SOURCE INPUT connectors on

the MC3. Set the CONFIG switch to its appropriate setting for either balanced or unbalanced

operation depending on the type of cables you are using.

BAL/UNBAL CONFIG

Connect the stereo OUT-A to your main monitors and OUT-B to your second set of monitors.

Turn the A and B outputs on or off using the front panel selectors. The LED indicators will

illuminate when the output is active. Both stereo outputs can be active at the same time.