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メディア・コンバーター AudioControl LC7のPDF マニュアルをオンラインで閲覧またはダウンロードできます。AudioControl LC7 16 ページ。

Summing The Outputs

Under the cover are connection jumpers that allow the Main outputs of

the LC7 to receive signals from the inputs of Channel pairs 2 and 3. These

jumpers allow you to select which input signals will be summed into the

Main output. When one of the jumpers is in the Summed position, the

corresponding green indicator light on the front of the LC7 will be lit. The

shipped-from-the-factory setting is in the Separate position.

When you have summed several channels together, you will want to make

sure the output levels are providing a balanced frequency response. A sim-

ple technique involves using a pink noise cd and a real time audio analyzer

(AudioControl happens to make a great one!)

1. Perform all of the steps necessary to install your LC7.

2. Connect the Main Outputs from your LC7 to the audio input on your

real time analyzer. "Yes", your amplifiers will need to be disconnected from

the LC7 at this time.

3. Start playing pink noise on your cd player and raise the volume level

until signal is displayed on your real time audio analyzer (RTA).

4. Adjust the LC7 input level controls for each pair of channels until your

RTA is displaying a smooth or flat response curve.

5. If you wish to make any additional frequency response adjustments you

may want consider adding an equalizer to your system (we happen to know

someone who makes some really good ones - www.audiocontrol.com).

Figure 7: Using an RTA to measure the Summed Response

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