Esoteric UX-1 and X-01 based APL Hi-Fi Universal Digital Player NWO-3.0 World`s finest digital playback Features 1. APL Hi-Fi Master Clock 2.True 32 bit Miracle DACs from AKM in Japan - 20 per channel 3. Unique H-Attenuator with remote control 4. Fully differential (balanced) tube output stage featuring the best Lundahl audio transformers and two ECC 99 output tubes. Non-negative feedback, pure class “A” design 5. Balanced (XLR) or Single ended (RCA) outputs. Please specify. 6. Optional S/PDIF Coaxial Digital Input allowing for external digital sources such as Computer Audio, Satellite/cable recievers, etc. 7. Digital Input standard