The 851N takes almost any digital file from virtually any source and renders it to the highest possible standard. Every digital source becomes a hi-fi option; its wireless options include Wi-Fi, internet radio, Spotify, Airplay. Add an optional BT100 Bluetooth dongle, and any paired Bluetooth device is connected.
Digital source components, such as a smartphone, set-top box or PC can connect via optical, co-axial or AES/EBU inputs, while other media are supported with Ethernet, USB and Audio USB. Music files in all the popular formats are supported, from MP3, through to FLAC/Apple Lostless and WAV 16-24 bit master files.
Thanks to our proprietary ATF2 audio upsampling, the 851N upsamples everything to 24-bit / 384kHz. The audio signal then passes through two Analog Devices DACs in dual differential mode for the very finest digital to analogue conversion. As well as connecting the 851N to a traditional integrated amplifier, it can also be configured as a digital pre-amp allowing it to be connected directly to a power amp such as the 851W for further sonic purity.
D/A converters: Twin Analog Devices AD1955 24-bit DACs
Digital filter: 2nd Generation ATF2 up-sampling to 24-bit/384kHz. Linear Phase, Minimum phase or Steep modes.
Analogue filter: 2-pole differential Bessel with DC servo (for both XLR and RCA outputs)
Digital audio inputs: 1 x AES/EBU, 2 x S/PDIF coaxial and 2 x TOSLINK optical
USB Audio input: USB Type B conforms to USB Audio profile 1.0 or 2.0 (user selectable)
Analog audio outputs: Balanced XLR and unbalanced RCA analog audio outputs
Compatibility: UPnP: Linear PCM 16-24 bit, 11.025-192kHz
Local USB media: Linear PCM 16-24 bit, 11.025-192kHz
USB Audio1.0: Linear PCM 16-24 bit, 44.1-96kHz
USB Audio 2.0: Linear PCM 16-24 bit, 44.1-192kHz or DSD (x64)
TOSLINK: 16-24 bit, 32-192kHz (using high quality TOSLINK optical cable)
S/PDIF: Linear PCM 16-24 bit, 32-192kHz
AES3/EBU: Linear PCM 16-24 bit, 32-192kHz
BT100 Bluetooth receiver: A2DP plus aptX
Internet radio: 16-24 bit, 11.025-192kHz
Audio formats: ALAC, WAV, FLAC, AIFF, WMA, MP3, AAC, HE AAC, AAC+, OGG Vorbis
Standby power consumption: <0.5W
Dimensions: (H x W x D) 115 x 430 x 360mm (4.5 x 16.9 x 14.7”)