Behringer MDX2200 Control Elements, Expander/gate section, Transformer balanced outputs optional

COMPOSER PRO MDX2200

1.2.4 Transformer balanced outputs (optional)

In contrast to electronic balancing, the use of transformer-balanced outputs offers the advantage of galvanic separation between units. Electrical potential differences and ground loops in audio installations do not there- fore impair the performance of the units. The transformer-balanced outputs, commonly used in radio and TV engineering, can also be fitted retrospectively upon request. The BEHRINGER transformer OT-1 is designed to the highest exacting standards and is available as an accessory.

2. CONTROL ELEMENTS

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Fig. 2.1: COMPOSER PRO front panel

The BEHRINGER COMPOSER PRO has two identical channels. Each channel is equipped with eight backlit push-buttons, eight rotary controls and 30 LED’s. The COUPLE switch is for stereo operation:

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By engaging the COUPLE switch the COMPOSER PRO is converted to stereo mode, where the controls of the left channel take over the control of both audio channels. The control signal for the control characteristic consists of either the sum of the left and right audio signal or the sum of the external audio signals, which are being fed into both SC RETURN connectors. By pressing the COUPLE switch, you override all the controls and switches of channel 2 with the exception of the IN/OUT, SC EXT, SC MON, SC FILTER and I/O METER switches. As a result, the controls of channel 1 take over the functions of channel 2.

Should you wish to use the SC EXT function in stereo mode, then be sure that both SC RETURN connectors are connected to the external control signal, and that the SC EXT switches on both channels are engaged.

2.1 Expander/gate section

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Fig. 2.2: Control elements of expander/gate section

Use the THRESHOLD control to determine the threshold point below which expansion occurs. The range of this control is from OFF to +15 dB.

2. CONTROL ELEMENTS 9