Burson Audio - Conductor SL 9018 - Headphone Amp and DAC Max Output Power @ 8 Ohm : 2W ; VOS Output Stage : 2 Levels DAC Out : No : Pre-Amp Out : No RCA input set : 1 ; Volume Control : ALPS Pots ; Enclosure : 2mm Folded Aluminum Stocked DAC PCB : ESS9018 ; DAC Spec: 32bit 200K DAC DNR : 133 db