Can you route different application's audio to different speakers?

[Matt8D]

I was wondering if there is any software that lets me have one application (Youtube, firefox) output audio to my amp (Which connects via usb). While all other audio outputs through my computer speakers?
Or have other configurations, like headphones and computer speakers, ect.

I have been looking and I can't find anything. If theres any more information you need feel free to ask. Thanks in advance.

[Geek-9pm]

Please  change the question to a different expression.

Like:
I want you tube audio to only go to my external amp, not the internal sound system.

You would have to load a program that contacts you tube and gets the feed directly, but not using a browser like Fire Fox.

http://www.youtube.com/watch?v=IluHy_Pn2_8
The above link is not very clear. I do NOT think it really does a re-direct. Instead, this would be a utility from the maker of a secondary sound device. Like a second sound card.

Try to Google sound cards for professional audio