Reading the following lines you might get the impression i am doing marketing for SMSL (smsl-audio.com/en_company.html) actually i am not.
I am just a little bit sad that the SMSL-98E (Price here in germany 150,00EUR) (amazon.de/SMSL-Endstufe-Amplifier-Verstärker-2x120WTDA7498E/dp/B00E62G31S/ref=sr_1_1?ie=UTF8&qid=1401464438&sr=8-1&keywords=smsl+sa-98e) easily outperforms my LUA4545L (regular Price 3000,00EUR)
So i recommend to buy it to play volumios output.
I just got it from ebay for 98EUR, connected it to one of my volumio-pi’s and am left speachless…
Raspberry pi with volumio connected via LAN
Teufel Ultima 40 Mk II
Tested with these songs (FLAC Versions, not the attached Videos):
Tubular Bells 2003-Finale-Mike Oldfield
California Dreaming-Wes Montgomery
Bug Powder Dust-Bomb the Bass-Kruder and Dorfmeister Remix