Using Jack audio and getting audio to play though headphones

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http://askubuntu.com – I need to use Jack audio to prevent clicks but I'm having problems getting jack to play though my usb wireless g930 headphones. I'm using puredata and I can get my usb wireless g930 headphones to work with the Alsa setting but Jack will only play through the speakers. Does anyone know how I can get jack to play through my headphones? Thanks PS I'm using ubuntu 12.04 64bit (HowTos)