Extremely versatile product and BRAND new. Asynchronous USB DAC with additional coaxial and optical inputs, high quality pre-amp and a headphone stage. What more could you ask? The DAC-V1 is an asynchronous USB digital to analogue converter with multiple digital S/PDIF inputs, precision volume control and a high-quality headphone amplifier. It will produce stunning sound quality from your computer and transform it into a high-quality, high-resolution music hub. Digital made musical Connect the DAC-V1 to your PC, Mac or Laptop via a standard A to B USB cable and the quality of your music will be defined not by the limitations of the computer hardware, but by the quality of the data itself. And with DAC-V1 that can be incredibly high, up to 24bit/384kHz resolution. Flexible yet powerful While the DAC-V1 is perfectly suited to being positioned on a desk near a computer it is also highly versatile. It can integrate seamlessly into a traditional hi-fi system or be used with any two-channel digital audio source such as a games console, satellite box or any other device with a digital output via one of its five S/PDIF digital inputs. The DAC-V1 can also be combined with the Naim UnitiServe hard disc server and its matching power amplifier, the NAP 100, to create a compact high-end music system. Connect to; PC/Mac/Laptop – Make the most of music from your computer via asynchronous USB Hard disk player – Create a compact yet powerful hi-fi system by combining DAC-V1 with the NAP 100 and UnitiServe Games Console – Immerse yourself in games and multi-media sound from your favourite console CD Player – Take over preamplifier and DAC duties for your CD player and give extra connectivity DVD Player – Play sound from your movies, documetaries, live concerts and more Satellite TV Receiver – Improve the sound quality of your TV or set top box Speakers – the 50W (into 8 ohms) NAP 100 power amp will drive a wide range of demanding loudspeakers Headphones – play direct through your headphones from the front panel of the DAC-V1 Key features: High-speed asynchronous USB input up to 24bit/384kHz 5 x S/PDIF inputs up to 24bit/192kHz (1 x BNC, 2 X RCA, 2 x TOSLINK) Selectable fixed or variable analogue outputs (DIN or RCA) Zero S/PDIF Jitter design in common with the original Naim DAC Naim custom designed Digital Filtering with 16 times oversampling SHARC ADSP21489 DSP for Digital Filtering and zero S/PDIF jitter Classic discrete Naim preamplifier gain stage topology with selected components High-quality Burr Brown PCM1791A DAC, in common with NDX and SuperUniti Single ended Class-A headphone amplifier. Front panel ¼ inch headphone output Optical isolation between digital and analogue sections Naim digitally controlled analogue volume control for performance and precision Linear power supply with 210VA transformer, windings for Digital, DAC and analogue stages Operates with computers running OSX, 10.7 and above, Windows XP, 7 and 8 Floating or Chassis ground switch for optimum performance with any system Field upgradeable firmware OLED display for adjusting settings and checking incoming bit-rates Control via IR remote control or front panel controls DAC-V1 can control computer playback and volume Compact non-magnetic low-resonance chassis and sleeve British design and build