Apogee Maestro 2; Using The Ac Adapter - Apogee Duet 2 User Manual

Apogee Maestro 2

Apogee Maestro software provides the most complete control of Duet, including;
• Control of all settings
• Store/recall of configurations
• Low latency mixing

Using the AC Adapter

If the "Connect AC adaptor" warning is displayed on the top panel OLED, or the "USB
current limit" warning (shown below) appears on the Mac desktop, connect the supplied
AC adaptor between Duet's DC power input and a standard wall socket. The AC adaptor
may be connected to any AC voltage between 100 and 240 volts AC, thus making it
compatible with virtually any wall socket in the world. Also included with the AC adaptor
are NEMA (North America), "Europlug" and British "BS 1363" plug adaptors.
Duet 2 is easily powered by any available USB port on your Mac in most applications.
However there may be scenarios where connecting the external AC power adaptor is
preferred or required.
There are two factors contributing to increased power consumption:
• output volume into low impedance headphones
• phantom power for condenser mics.
If you have Duet 2 set at a reasonable volume, you are not drawing that much power over
the USB bus and you will be able to connect any microphones that require phantom
power. When you are using low impedance headphones and your volume is very high you
are drawing more power over the USB bus and may need the AC adaptor to use power
hungry condenser mics.
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