What to use to power DT-990 Pro?

[revolver34]

I currently have a soundblaster z in my PC and have the headset hooked to that and it works well. The only problem is I have my speakers and headphones hooked to it with a 3.5mm splitter so if I want to listen to the speakers the headphones are blasting also. Is there a way I can separate them or I can purchase and amp/dac for it like the SMSL SD793-II or fiio e10k so I can switch back and forth between my speakers and my headphones. I am a noob at audio stuff so any help would be greatly appreciated.

 

[americanaudiophile]

You can replace the splitter with one of these
http/www.ebay.com/itm/like/221756524974?lpid=82&chn=ps&ul_noapp=true
http/electronicsusa.com/mk1and2.html
or make one
http/www.instructables.com/id/Mint-Box-Audio-Selector-35mm-audio-switch/
The DAC/AMP might give you better sound but if you wanted the benefit of the DAC on both the speakers and headphones you would still need a way of switching.