Marantz SA-10 Super Audio CD player with USB DAC and digital inputs

The built-in digital-to-analog converter (DAC) lets you convert music stored on your computer, and the digital inputs enable the SA10 to pass audio from existing source components. The optical and digital coaxial inputs can handle files at up to 192 kHz / 24-bit; a USB-B asynchronous input allows for the direct connection of your computer and supports PCM and DXD files at up to 384 kHz / 32-bit, as well as DSD 2.8 MHz, DSD 5.6 MHz, and DSD 11.2 MHz.

Further, the digital input section is completely isolated to help it avoid electrical noise from connected components, which is common when a computer is used as a source. The SA10 also uses 1-bit conversion and incorporates filtering and upconversion technologies.

PCM and DXD inputs are upconverted to DSD at 11.2 MHz using the onboard MMM-Stream converter, and the high-frequency signal produced is processed by the MMM-Conversion stage, rather than a conventional DAC, to produce the analog output.

MMM-Stream replaces the oversampling filters normally used in D/A conversion and allows the implementation of the Marantz Musical Mastering filtering. One provides a slow roll-off and short impulse response, and the other offers the option of a medium roll-off with short pre-ringing and longer post-ringing.