McIntosh MA6900 How to Operate, Power On, Volume Control, PH/AUX Inputs, Balance Control, Mono

Figure 1

How to Operate

How to Operate

Power On

Press the POWER switch to ON. The Red LED above the STANDBY/ON push-button, lights to

indicate the MA6900 is in Standby

mode. To turn On the MA6900, press the STANDBY/ON push-button. The MUTE LED will light for approxi-

mately two seconds after turn on. Re- fer to figures 1 and 2.

Note: For normal operation, turn the MA6900 On and Off with the Standby/On push- button. If the amplifier is not going to be used for an extended time, turn off all AC Power with the Power Switch. You may also turn On the MA6900 by simply pressing the desired Source Selection Push- button on the Front Panel or Remote Control.

Source Selection Select the desired source with the appropriate push- button switch on the Front Panel or Remote Control. Refer to figures 2 and 3 and page 16 for additional information.

Volume Control

Adjust the VOLUME con- trol for the desired listen- ing level.

Figure 2

Figure 3

PH/AUX Inputs

When using a phono player with a moving magnet car- tridge connected to the PH/AUX inputs,

set the PH AUX switch to the PH posi- tion. When using an auxiliary program source component connected to the PH/ AUX inputs, set the PH AUX switch to the AUX position. Refer to figure 4.

Balance Control Figure 4

Adjust the BALANCE control as needed to achieve ap- proximately equal listening volume levels in each loud- speaker. Turn the BALANCE to the left to emphasize the Left Channel by reducing the level of the Right Channel. Turn the BALANCE to the right to emphasize the Right Channel by reducing the level of the Left Channel.

Equalizer Controls

Each of the five Equalizer Frequency Controls will raise or lower by approximately12dB, the amplitude of the band of frequencies centered at the frequency marked above the controls. Both Left and Right Channels are affected. Refer to figure 5. At the center detent or flat position of the con- trols, all equalizer circuit components are removed from the signal path.

Figure 5

Loud Switch

Press the LOUD push-button to add loudness bass compen- sation to the volume control for improved low level listen- ing.

Mono

Press the MONO push-button to combine left and right ste- reo signals to mono at the SPEAKERS 1 and 2 and HEAD- PHONES output.

Mute

Press the MUTE push-button to mute audio in all outputs except the HEADPHONES and TAPE OUTPUT. The MUTE LED above the push-button will flash on and off to indicate that Mute is active. To unmute audio, press MUTE, press the Remote Control Volume push-button(s) or press an Input push-button.

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