TEAC NT-503 Dual-Monaural USB DAC/Network Player Highlights:USB DAC supporting 11.2MHz DSD Native Playback and 32-bit/384kHz PCM from PC via a single USB Cable6MHz DSD and 24-bit/192kHz WAV/FLAC Streaming Playback via LAN (DLNA1.5 Compatible Remote Playback and Home Media Playback)6MHz DSD and 24-bit/192kHz WAV/FLAC Playback from USB Flash MemoryHigh-quality Wireless Playback via Bluetooth® supporting aptX® AAC and SBC CodecAccess to the Internet Radio Stations*(TuneIn)Access to online music services; Spotify Deezer and Slacker (US model)*Access to online music services; Spotify and Deezer (EUR model)*Access to the aerial digital broadcasting stations on DAB and DAB+ (NT-503DAB model)Free Remote App for iOS and AndroidFree Music Playback App for Windows/Mac supporting 11.2MHz DSDDual D/A Converters AK4490 from Asahi Kasei Microdevices CorporationDSD and PCM Filters for Multifaceted Personality on a Single Unit10MHz External Clock Input for more precise clock operation (Applicable for USB Asynchronous Mode only)High-precision On-board Clocks for 44.1kHz system and 48kHz system (Applicable for USB Asynchronous Mode only)Up-conversion to 12.2MHz DSD and 384kHz PCM for finer detail"TEAC-HCLD" Quad Buffer Amplifier Circuits for enhanced current"TEAC-QVCS" High-precision Volume Control CircuitsXLR Balanced and RCA Unbalanced Line Outputs with Fixed (0dB +6dB) or Variable Output Level SettingsSwitchable XLR Polarity (2:HOT or 3:HOT)USB B-type Port for PC Streaming Ethernet Port for Network Streaming and Coaxial and Optical Digital InputsGapless Playback when playing back from USB Flash Memory DLNA and Home Media (Applicable on the same sampling frequency files between WAV FLAC AAC Apple Lossless WMA OGG Vorbis and MP3.))Coaxial/Optical Digital Input on Front for Connection with Portable Digital Audio PlayerDiscrete Headphone Amplifier with 500mW + 500mW Output Power supports Parallel Unbalanced DriveLarge Volume Display.