Building av Rpi sonos replacement


i want to build a raspberry pi 2 so i can use it on my stereo to stream spotify from any smartphone (friends,girlfriend)

parts list:

1x raspberry pi 2
1x SD card (with volumio)
1x Audiophonics DAC SAbre ES9023 i2S or can i use this : … dB8pfmUT7o ??

so far so good - i think. The only think missing is power, what kind of power can i use to make this a high end unit to connect to my stereo.

thank you

I am using a musical paradise MP-U1 to power up the PI 2