Since Mobius has an analog input port, it can technically be used with any source that provides an analog signal. However, use of an amp that provides greater than line level output (such as many headphone amps) can cause clipping, distortion, and possible damage, and is NOT recommended. Excessive power levels can damage Mobius. In AUX/analog mode, do not exceed standard line level voltage to minimize the risk of damage, which is not covered under warranty.
Our recommendation is to use Mobius' USB input for the best sound, but if you choose to experiment with an external amplifier at your own risk, we recommend exercising caution regarding amplifier volume settings to prevent sending too much power to Mobius' internal amplifier.
Note: If you choose to experiment with other activities, such as skydiving, SCUBA diving or parachuting, please leave Mobius out of it-- unless we're talking virtual activities, then by all means Mobius can help!