NADs new C 510 is a digital preamp/DAC, which can be connected directly to your computer (Mac or PC) via a USB Type B connection (the square one) allowing you to use it as a standalone DAC. It accepts HDMI (two inputs), optical, coaxial, and AES/EBU inputs (one each), but it can only output stereo. These connections are all 192kHz/24bit capable for the highest possible audio quality. The thing we really like about the C 510 is that it is an easy and no-nonsense way to add high-end digital content to an existing analog-only system. The downside is the price. Read NAD C 510 Digital Preamp/DAC Preview Do you own this product? Let us know how you like it.
