Incoporating multiple analogue and digital audio connections with bi-directional conversion and upscaling, this professional DAC can cater for the most demanding applications. Featuring bit perfect Asynchronous USB 2.0 with a highly accurate PLL and low jitter reduction clock system, the LDAC-Pro provides a superb digital audio listening experience. Sampling rates of up to 192KHz (up to 24bits) are supported via each of the four digital inputs, ensuring you get the most out for your audio devices.For professionals the LDAC-Pro utilizes the high performance Burr-Brown PCM4104 4 channel DAC chipset, for low out-of-band-noise and a high tolerance to system clock phase jitter, and the industry leading Texas Instruments TI TPA6120A2 high fidelity headphone amplifier, as well as low noise balanced XLR outputs and a 6.3mm headphone jack to offer unparalleled audio quality.Please Note: The LDAC-Pro is not compatible with Dolby Digital or DTS formats, which are both forms of compressed audio. If you play back CDs, DVDs or BDs encoded in Dolby Digital or DTS, you will only hear some unwanted noise that may damage your speakers. To work around this you need to access the menu setting of the source device and adjust Dolby Digital or DTS to PCM. This USB DAC works with any PCM stream from CD players, DVD players and set-top boxes.More Information Analogue or digital inputs are simultaneously output in analogue and digital formats Sampling Rate Conversion (SRC) for all digital inputs to 44.1/48/88.2/96/176.4/192KHz output Accepts 2 channel digital audio and works with any LPCM stream with Dolby Digital or DTS disabled HDMI, Optical, Coaxial and USB 2.0 (USB Audio Class 2) digital audio interfaces Phono, XLR, Line-In and Headphone analogue audio interfaces USB 2.0 audio interface compatible with Windows XP/Vista/7 and Mac OS X Package Contents LDAC Pro IR Remote Control with supplied battery 6.3mm Male to 3.5mm Female Audio Adapter Multi country Power Supply CD Driver User manual