McIntosh MCC204 manual How to Operate in Subwoofer Mode, Output Mode

How to Operate in Two Channel or Subwoofer Mode

How to Operate in Two Channel Mode

In the Two Channel Mode, Channels 1 and 2, and Channels 3 and 4 operate in bridged configuration as a pair of full frequency range 200 watt amplifiers. A typical application is use of a more powerful amplifier for stereo reproduction. Refer to figures 7 and 8.

Power

The MCC204 will turn On or Off when the Control Center turns On or Off.

Note: There must be an Amp ON connection between the MCC204 and the signal source unit in order for the amplifier power turn On and Off to function.

Input Source

Set the Channel 3-4 SOURCE Switch to 3, 4.

Sensitivity Controls

The Sensitivity Controls 1 and 3 allow the setting of input level of both bridged pairs of amplifier channels to provide an ideal match for the signal source being used.

Mode

Set both the Channel 1-2 MODE Switch and the Channel 3-4 MODE Switch to the BRidged position to configure the amplifier for two channel operation.

Crossover

Set the CROSSOVER Switches to the OUT position since both bridged channels are operating at full frequency range.

How to Operate in Subwoofer Mode

In the Sub Woofer Mode, Channels 1 and 2 operate as in- dependent 50 watt amplifiers, driving two midrange and high frequency or full range speakers. Channels 3 and 4 operate in Bridged Mode as a single 200-watt amplifier, driving a low frequency speaker. A typical Subwoofer Ap- plication is to drive two upper-range loudspeakers and one woofer or subwoofer. Refer to figures 7 and 8.

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Power

The MCC204 will turn On or Off when the Control Center turns On or Off.

Note: There must be an Amp ON connection between the MCC204 and the signal source unit in order for the amplifier power turn On and Off to function.

Input Source

Set the Channel 3-4 SOURCE Switch to the 1-4 (SUB) po- sition to send the summed signals from Input 1 and 2 to the Bridged Channels 3 and 4 for low-pass filtering.

Sensitivity Controls

The Sensitivity Controls allow setting the input level of Amplifier Channels 1, 2 and 3 to provide an ideal match for the signal source being used. Sensitivity Control 3 ad- justs the subwoofer level balance and Sensitivity Control 4 has no effect.

Output Mode

Set the Channels 1-2 MODE Switch to the STereo position and the Channels 3-4 MODE Switch to the BRidged posi- tion to operate in the Subwoofer Mode.

Crossover

Set the Channel 1-2 CROSSOVER Switch to the HP Posi- tion and the Channel 3-4 CROSSOVER Switch to the LP Position. Adjust the CROSSOVER FREQUENCY Control for both Channels 1-2 and 3-4 to the same frequency set- ting. The selection of the Crossover Frequency should be determined by the recommendations of the Loudspeaker Manufacturer for the best performance.

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