Naim NAC172 Preamplifier High quality preamplifier including digitally controlled analogue volume control UPnP™-enabled to stream audio files from any UPnP enabled server such as UnitiServe or a NAS at up to 32bit/192kHz resolution vTuner 5* full service internet radio Optional FM/DAB module variant available Streams/plays WAV, FLAC, ALAC, AIFF, AAC, WMA, Ogg Vorbis and MP3 files Full Naim Multiroom functionality including Party Mode Gapless playback available on all lossless file formats Front-panel USB port for replay of MP3 player/iPod and USB-stored audio Digital USB connection from iPod/iPhone for ultimate quality and iPod control Multiple intuitive control interfaces: front panel, remote control handset and n-Stream control app Full system automation, wired remote in and wired remote out USB mini-b connector for software upgrades Linear power supply with 230VA transformer with separate windings for digital and analogue sections High quality Burr-Brown PCM1793 DAC Ground selector switch for optimum performance with many sources and power amps Five 24bit/192kHz-capable S/PDIF digital inputs (2 x coaxial RCA, 2 x TOSlink, 1 x front panel mini-TOSlink) 3 analogue inputs (1 DIN, 1 RCA pair, 1 x 3.5mm front-panel socket) 1 line output DIN and RCA preamplifier analogue outputs Front-panel 3.5mm headphone connector OLED display for high contrast and easy visibility Ethernet and Wi-Fi network connectivity As the first Naim streaming preamplifier, the NAC-N 172 XS introduces numerous innovative techniques for signal processing and isolation to ensure that each audio signal or stream is output with maximum fidelity. It employs a Burr Brown digital to analogue converter chip that offers the same performance as the one fitted to the digital benchmark Naim NDX network player, and it benefits from all the filtering and signal management techniques that have brought Naim to the forefront of digital music in the home. NAC-N 172 XS component selection is entirely optimised for sound quality and the XS style case construction helps minimise microphony by providing a rigid, non-resonant foundation for the electronics. Like every Naim product, fastidious attention to power supply noise and regulation, PCB layout and earthing topology, is a fundamental element of NAC-N 172 XS performance. The result of all this extraordinary technology is extraordinary music reproduction that lives, breathes and satisfies. Integrate a NAC-N 172 XS in an existing audio system, or build a new pre/power amplifier system around it, and the world of high resolution audio, UPnP™ streaming, and the vast resource of internet radio can connect seamlessly with your existing world of CD and vinyl. AUDIO INPUTS Input Impedance 30kΩ Input Sensitivity 200mV Analogue Inputs 1 x 5-pin DIN, 1 x RCA pair, 1 x 3.5mm front Digital Inputs 5 x S/PDIF (2 x coaxial RCA, 2 x optical TOSlink, 1 x 3.5mm front panel mini-TOSlink) Sample rates maximum 192kHz (coaxial), 96kHz (optical) UPnP Ethernet (RJ45) or Wi-Fi USB/iPod 1 front-panel socket AUDIO OUTPUTS Analogue Outputs (variable level) 1 x 4-pin DIN, 1 x RCA pair Analogue Outputs (fixed level) 1 x RCA pair Output Level 1Vrms Frequency Response 5Hz to 40kHz THD + N 0.015% Signal-To-Noise Ratio (S/N Ratio) 90dB Crosstalk 80dB Output Impedance