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Powering your amplifier
In order to turn the main power of the MC 7150 on, the switch located on the
rear must be in the “on” position. A green light surrounding the power button on the
front will illuminate. There is a built in 2 second delay after initially turning the
switch on in the rear of the unit before you can press the power button. Pressing the
power button will turn the unit on from standby and the light around the power
button will switch to blue. It is recommended to turn the amp off with the switch on
the back when you are connecting or disconnecting wires from the binding posts.
We also recommend doing the same when experiencing electrical storms in the
area, or perhaps leaving town for a long duration. To prevent power surges, we
suggest using high quality surge suppressor equipment. Turning the switch “off” on
the rear of the unit will protect it when you have doubts on power stability.
“Break-in” period
This amplifier performs very well right out of the box. As the amplifier “settles
in” there will be audible improvements in sound quality throughout the first 300
hours. Once you reach 100 hours of music playback you can expect the higher
frequencies to smooth and the somewhat harsh transitions to diminish. As the unit
progresses through 200 hours of playback its overall character will become
smoother and increasingly natural. The remaining 100 hours of playback will result in
further improvements although they are less significant.
DC Trigger
Near the left side of the rear panel is a 12V DC trigger in. The trigger In will
turn the unit on from standby once it is actively fed 12V DC but the main On/Off
switch on the rear must be on. Having a trigger feature is very handy because it will
allow the MC 7150 to automatically power on whenever the source is turned on or
off. For example products such as our mPRE, mINT, DAC-2, STP-SE, STI, etc. all have
12V DC trigger outputs. You will also find that the majority of pre-pros and AV
receivers have a compatible trigger feature.
