Linear Tube Audio MZ3 Quick Start Manual page 5

Quick Start
Remove amplifier, power supply, and included cables from the
box.
Attach the DC umbilical cable to the power supply and amplifier.
This has a 4-pin XLR on each side - make sure these are securely
attached.
Attach the power cable to the IEC connector on the power
supply, and plug into an outlet.
Hook up your sources as well as your power amp, if using the MZ3
as a preamp.
Once everything is hooked up, turn on your system. While the MZ3
has built-in protection, it is usually best to turn your components on
starting from the beginning of the signal path and ending at the
amplifier, and to turn your system off in reverse order.
Operation
The unit is designed to be powered on indefinitely without harm.
You can also safely leave only the power supply on, using the
power button on the front panel to turn the amplifier on and off.
While it does not generate much heat, the unit is air cooled and
should be placed somewhere with adequate ventilation.
There are 3 RCA pairs on the back for 3 inputs, selectable via
toggle switch on the front panel.
The 2 RCA pairs next to the speaker binding posts are for the
preamp output. While the headphone and speaker outputs are
identical, the preamp output is optimized for preamp use and has
a higher output impedance. Both preamp outputs are identical.