Power Supply Information: Duet 2

Duet 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 required.

WARNING: These specifications are for the Duet 2 only! They do not apply to the Duet for iPad & Mac. Plugging in the wrong power supply can damage the device.

Power Supply Information: Duet for iPad & Mac

The Duet 2 uses a regulated power supply with the following specifications:

Input: AC 100-240v, 50-60Hz (same unit can be used in U.S., Europe, and Asia)
Output: DC 5V, 2 Amps (2000mA)
Barrel Size: 2.1mm inside diameter x 5.5mm outside diameter
Center Pin: Positive

Under normal conditions, the Duet 2 power supply is NOT needed. However, when drawing more power than the computer's USB bus can provide, a message will appear on Duet 2's OLED screen to connect the external power supply.

Connect AC Adaptor Duet 2 message

Here are the two factors contributing to increased power consumption that can trigger this message where connecting the external AC power adaptor is required:

When you are using low-impedance headphones and your output volume is very high
Phantom power use for some power-hungry condenser mics