I have an external sound card, it's SWEEX 7.1. If I plugged in, it shows at Audio MIDI setup and I can choose number of speakers, so I choose 6 speakers, because I have 5 + 1 speakers connected in my sweex sound card. I tested it by clicking to every speaker in midi setup and all speakers work correctly, which is fine, but...
What if I want to play stereo sound through all speakers? If I play some music from youtube for example, I can hear only two speakers.
So I've done some googling and found something called JackPilot, which allows me to do what I want, but you have to start JackPilot server first and after that set routing for every application separately.
I am looking for a some unified solution which will work after reboot without additional configurations. I guess Mac OS X does not provide such a feature out of the box, but I would be happy if something would exist, e.g. some 3rd party application.