Prism Sound ADA-8XR AD/DA converter; unrivalled audio quality! Capable of 192kHz/24-bit on 8 channel line inputs and 8 channel line outputs . Used by the likes of Abbey Road, Air Studios, Metropolis, the BBC, David Bowie, Sting, Mark Knopfler, Coldplay, etc. they truly are the pinnacle of AD/DA conversion and probably the only AD/DA unit you will ever need.