Installation manual

Dolby

Model CP650 Installation Manual B-Chain Alignment

4-10

rossover

>3 Way

>3 Way>3 Way

>3 Way

anne

Disabled

The following parameters must be set before adjusting the room equalization in your

auditorium:

• Crossover Mode (2-Way or 3-Way)

• Left Extra (Le) and Right Extra (Re) screen channel support

(available only in 2-Way and Full Range crossover modes)

• Filter type used at each crossover point (Linkwitz-Riley or Butterworth)

• Filter corner frequency at each crossover point

• Filter slope (Butterworth filter type only)

• Delay

• Polarity inversion to check for speaker wiring connections

Crossover Mode

Press the left menu button multiple times to

move to the Crossover Mode menu.

Rotate the front-panel knob to select the

crossover mode desired: 2-Way or 3-Way.

Note: Selecting Full Range mode disables the crossover

outputs and switches the main channel outputs to full

bandwidth for calibrating the SPL in the auditorium

(see Section 4.4.1).

Press the OK button to save your selection.

Le/Re Screen Channel Support

If your application calls for Le and Re support, the crossover must be operated in

2-Way or Full Range mode. In this case, the Le and Re outputs are full bandwidth. If

these channels also require a crossover, you must use external units.

Press the left menu button once to display

the Le/Re Channels screen.

Rotate the front-panel knob to enable or

disable Le/Re support.

Note: Le/Re screen channel support is available in

2-Way and Full Range mode only.