Is it possible to power two headphones independently?

The Pro iCAN Studio is inherently balanced and offers only a single pair of balanced channels, optimised for sound quality. Having multiple independent headphone outputs means essentially having two fully separate amplifiers.

Some low-end headphone amplifiers are built like this with four, or even eight separate headphone channels. If using multiple Pro iCAN Studio units is not possible (expense, etc), individual headphone amplifiers per musician are recommended.

The intention of the Pro iCAN Studio is to offer the recording/mastering engineer an ultimate monitor system using headphones while providing an experience akin to large monitor speakers or indeed to drive these speakers (or both).