How to Operate the MC352
How to Operate the MC352
Power On
To have the MC352 automatically turn on or off when a control center turns on or off, rotate the power switch to the remote position. For manual operation, rotate the power switch to the on or off position as desired.
Note: There must be a power control connection between the MC352 and the McIntosh Control Center, in order for the remote power turn on to function.
Meter Selection
Rotate the meter mode switch to select the meter operation mode you desire:
Lights Off - Meter lights are turned off and the meters will continue to indicate the power output.
Watts- The meters respond to all the musical informa- tion being produced by the amplifier and indi- cate to an accuracy of at least 95% of the power output of either amplifier channel with only a single cycle of a 2000Hz tone burst.
Hold - The meter pointer is locked to the highest power peak in a sequence of peaks. The meter is electronically held to this power level until another higher power peak passes through the amplifier. The meter pointer will then rise to the newer higher indication. If no further power peaks are reached, the meter pointer will very slowly return to its rest po- sition or lower power level. The decay rate is approximately 6 dB per minute.
Input Mode Switch
The Input Mode Switch allows you to select either the Bal- anced or Unbalanced inputs.
How to Operate the MC352 in Mono
The MC352 can be operated in Mono Mode as a 700 watt amplifier with output impedances of 1, 2 and 4 ohms. Refer to the shaded areas in figure 8.
1.Set the Output Mode Switch to the MONO PARALLEL position.
2.Connect the cable from the signal source equipment to the R MONO Balanced or Unbalanced input and set the Input Mode switch to match.
3.Connect the loudspeaker cables to the appropriate ter-
minals to match the impedance of your loudspeakers.
Note: Mono Parallel output connections require the chosen impedance Plus and Minus terminals of one channel be connected to the matching terminals on the other channel. Refer to the connecting chart below.
Loudspeaker | – (Negative) | + (Positive) |
Impedance | Output Terminal | Output Terminal |
|
|
|
1Ω (ohms) | Left & Right 2Ω | Left & Right 2Ω |
|
|
|
2Ω (ohms) | Left & Right 4Ω | Left & Right 4Ω |
|
|
|
4Ω (ohms) | Left & Right 8Ω | Left & Right 8Ω |
|
|
|
Note: The MC352 Power Output Meters indicate the actual wattage delivered to the loudspeakers by responding to the combination of current and voltage output.
Output Mode Switch
The Output Mode Switch allows the two MC352 channels to be used in two different operating configurations.
Stereo - Both channels operate independently as left and right 350 watt amplifiers for stereo applications.
Mono - The right channel input signal is sent to both amplifier channels, which are combined at the outputs for a 700 watt mono amplifier.
Figure 8
9
