Orchard Audio will soon be releasing the highest performance DAC for Raspberry Pi, via Kickstarter, for $175USD
Check out the first review here:
http://theaudiobeatnik.com/applepi-dac-review-theres-art-in-this-dac-and-it-shows/
Specs:
SNR: 128dB
THD+N: 0.0005%
Dynamic Range: >135dB

Orchard Audio will soon be releasing the highest performance DAC for Raspberry Pi, via Kickstarter, for $175USD
Check out the first review here:
http://theaudiobeatnik.com/applepi-dac-review-theres-art-in-this-dac-and-it-shows/
Specs:
SNR: 128dB
THD+N: 0.0005%
Dynamic Range: >135dB